# entry[].resource.description
ACME-base-ObservationLab based on US Core Observartion Lab Profile.

# entry[].resource.description
ACME-base-organization based on US Core Organization Profile.

# entry[].resource.description
ACME-base-patient based on US Core Patient Profile.

# entry[].resource.description
ACME-base-practitioner based on US Core Practitioner Profile.

# entry[].resource.snapshot.element[].short
A person with a  formal responsibility in the provisioning of healthcare or related services

# entry[].resource.snapshot.element[].constraint[].human
If the resource is contained in another resource, it SHALL NOT contain nested Resources

# entry[].resource.snapshot.element[].constraint[].human
If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated

# entry[].resource.snapshot.element[].constraint[].human
If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource

# entry[].resource.snapshot.element[].constraint[].extension[].valueMarkdown
When a resource has no narrative, only systems that fully understand the data can display the resource to a human safely. Including a human readable representation in the resource makes for a much more robust eco-system and cheaper handling of resources by intermediary systems. Some ecosystems restrict distribution of resources to only those systems that do fully understand the resources, and as a consequence implementers may believe that the narrative is superfluous. However experience shows that such eco-systems often open up to new participants over time.

# entry[].resource.snapshot.element[].constraint[].human
A resource should have narrative for robust management

# entry[].resource.snapshot.element[].constraint[].human
If a resource is contained in another resource, it SHALL NOT have a security label

# entry[].resource.snapshot.element[].definition
The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

# entry[].resource.snapshot.element[].comment
The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

# entry[].resource.snapshot.element[].definition
The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].short
A set of rules under which this content was created

# entry[].resource.snapshot.element[].definition
A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

# entry[].resource.snapshot.element[].comment
Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].isModifierReason
This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation

# entry[].resource.snapshot.element[].definition
The base language in which the resource is written.

# entry[].resource.snapshot.element[].comment
Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies  to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].short
Text summary of the resource, for human interpretation

# entry[].resource.snapshot.element[].definition
A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

# entry[].resource.snapshot.element[].comment
Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied).  This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

# entry[].resource.snapshot.element[].comment
This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

# entry[].resource.snapshot.element[].slicing.description
Extensions are always sliced by (at least) url

# entry[].resource.snapshot.element[].short
Additional content defined by implementations

# entry[].resource.snapshot.element[].definition
May be used to represent additional information that is not part of the basic definition of the resource. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

# entry[].resource.snapshot.element[].comment
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# entry[].resource.snapshot.element[].slicing.description
Extensions are always sliced by (at least) url

# entry[].resource.snapshot.element[].definition
May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

# entry[].resource.snapshot.element[].comment
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

# entry[].resource.snapshot.element[].requirements
Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# entry[].resource.snapshot.element[].isModifierReason
Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them

# entry[].resource.snapshot.element[].short
An identifier for the person as this agent

# entry[].resource.snapshot.element[].definition
An identifier that applies to this person in this role.

# entry[].resource.snapshot.element[].comment
NPI must be supported as the identifier system in the US, Tax id is allowed, Local id is allowed in addition to another identifier supplied by a jurisdictional authority such as a practitioner's *Drug Enforcement Administration (DEA)* number.

# entry[].resource.snapshot.element[].requirements
Often, specific identities are assigned for the agent.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].mapping[].map
CX / EI (occasionally, more often EI maps to a resource id or a URL)

# entry[].resource.snapshot.element[].mapping[].map
II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]

# entry[].resource.snapshot.element[].definition
Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

# entry[].resource.snapshot.element[].slicing.description
Extensions are always sliced by (at least) url

# entry[].resource.snapshot.element[].short
Additional content defined by implementations

# entry[].resource.snapshot.element[].definition
May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

# entry[].resource.snapshot.element[].comment
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# entry[].resource.snapshot.element[].short
usual | official | temp | secondary | old (If known)

# entry[].resource.snapshot.element[].comment
Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

# entry[].resource.snapshot.element[].requirements
Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].isModifierReason
This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.

# entry[].resource.snapshot.element[].binding.description
Identifies the purpose for this identifier, if known .

# entry[].resource.snapshot.element[].definition
A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

# entry[].resource.snapshot.element[].comment
This element deals only with general categories of identifiers.  It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage.   Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

# entry[].resource.snapshot.element[].requirements
Allows users to make use of identifiers when the identifier system is not known.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].binding.description
A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

# entry[].resource.snapshot.element[].definition
Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

# entry[].resource.snapshot.element[].comment
Identifier.system is always case sensitive.

# entry[].resource.snapshot.element[].requirements
There are many sets  of identifiers.  To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
The portion of the identifier typically relevant to the user and which is unique within the context of the system.

# entry[].resource.snapshot.element[].comment
If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986.  The value's primary purpose is computational mapping.  As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.)  A value formatted for human display can be conveyed using the [Rendered Value extension](extension-rendered-value.html). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].mapping[].map
II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)

# entry[].resource.snapshot.element[].short
Time period when id is/was valid for use

# entry[].resource.snapshot.element[].definition
Time period during which identifier is/was valid for use.

# entry[].resource.snapshot.element[].comment
A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See [Duration](datatypes.html#Duration).

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
If present, start SHALL have a lower value than end

# entry[].resource.snapshot.element[].constraint[].expression
start.hasValue().not() or end.hasValue().not() or (start <= end)

# entry[].resource.snapshot.element[].mapping[].map
IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]

# entry[].resource.snapshot.element[].mapping[].map
Role.effectiveTime or implied by context

# entry[].resource.snapshot.element[].short
Organization that issued id (may be just text)

# entry[].resource.snapshot.element[].definition
Organization that issued/manages the identifier.

# entry[].resource.snapshot.element[].comment
The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
SHALL have a contained resource if a local reference is provided

# entry[].resource.snapshot.element[].mapping[].map
The target of a resource reference is a RIM entry point (Act, Role, or Entity)

# entry[].resource.snapshot.element[].mapping[].map
II.assigningAuthorityName but note that this is an improper use by the definition of the field.  Also Role.scoper

# entry[].resource.snapshot.element[].short
An identifier for the person as this agent

# entry[].resource.snapshot.element[].definition
An identifier that applies to this person in this role.

# entry[].resource.snapshot.element[].requirements
Often, specific identities are assigned for the agent.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
NPI check digit must be valid (Luhn algorithm check)

# entry[].resource.snapshot.element[].mapping[].map
CX / EI (occasionally, more often EI maps to a resource id or a URL)

# entry[].resource.snapshot.element[].mapping[].map
II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]

# entry[].resource.snapshot.element[].short
An identifier for the person as this agent

# entry[].resource.snapshot.element[].definition
An identifier that applies to this person in this role.

# entry[].resource.snapshot.element[].comment
NPI must be supported as the identifier system in the US, Tax id is allowed, Local id is allowed in addition to another identifier supplied by a jurisdictional authority such as a practitioner's *Drug Enforcement Administration (DEA)* number.

# entry[].resource.snapshot.element[].requirements
Often, specific identities are assigned for the agent.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].mapping[].map
CX / EI (occasionally, more often EI maps to a resource id or a URL)

# entry[].resource.snapshot.element[].mapping[].map
II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]

# entry[].resource.snapshot.element[].definition
Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

# entry[].resource.snapshot.element[].slicing.description
Extensions are always sliced by (at least) url

# entry[].resource.snapshot.element[].short
Additional content defined by implementations

# entry[].resource.snapshot.element[].definition
May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

# entry[].resource.snapshot.element[].comment
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# entry[].resource.snapshot.element[].short
usual | official | temp | secondary | old (If known)

# entry[].resource.snapshot.element[].comment
Applications can assume that an identifier is permanent unless it explicitly says that it is temporary.

# entry[].resource.snapshot.element[].requirements
Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].isModifierReason
This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one.

# entry[].resource.snapshot.element[].binding.description
Identifies the purpose for this identifier, if known .

# entry[].resource.snapshot.element[].definition
A coded type for the identifier that can be used to determine which identifier to use for a specific purpose.

# entry[].resource.snapshot.element[].comment
This element deals only with general categories of identifiers.  It SHOULD not be used for codes that correspond 1..1 with the Identifier.system. Some identifiers may fall into multiple categories due to common usage.   Where the system is known, a type is unnecessary because the type is always part of the system definition. However systems often need to handle identifiers where the system is not known. There is not a 1:1 relationship between type and system, since many different systems have the same type.

# entry[].resource.snapshot.element[].requirements
Allows users to make use of identifiers when the identifier system is not known.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].binding.description
A coded type for an identifier that can be used to determine which identifier to use for a specific purpose.

# entry[].resource.snapshot.element[].definition
Establishes the namespace for the value - that is, a URL that describes a set values that are unique.

# entry[].resource.snapshot.element[].comment
Identifier.system is always case sensitive.

# entry[].resource.snapshot.element[].requirements
There are many sets  of identifiers.  To perform matching of two identifiers, we need to know what set we're dealing with. The system identifies a particular set of unique identifiers.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
The portion of the identifier typically relevant to the user and which is unique within the context of the system.

# entry[].resource.snapshot.element[].comment
If the value is a full URI, then the system SHALL be urn:ietf:rfc:3986.  The value's primary purpose is computational mapping.  As a result, it may be normalized for comparison purposes (e.g. removing non-significant whitespace, dashes, etc.)  A value formatted for human display can be conveyed using the [Rendered Value extension](extension-rendered-value.html). Identifier.value is to be treated as case sensitive unless knowledge of the Identifier.system allows the processer to be confident that non-case-sensitive processing is safe.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].mapping[].map
II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)

# entry[].resource.snapshot.element[].short
Time period when id is/was valid for use

# entry[].resource.snapshot.element[].definition
Time period during which identifier is/was valid for use.

# entry[].resource.snapshot.element[].comment
A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See [Duration](datatypes.html#Duration).

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
If present, start SHALL have a lower value than end

# entry[].resource.snapshot.element[].constraint[].expression
start.hasValue().not() or end.hasValue().not() or (start <= end)

# entry[].resource.snapshot.element[].mapping[].map
IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]

# entry[].resource.snapshot.element[].mapping[].map
Role.effectiveTime or implied by context

# entry[].resource.snapshot.element[].short
Organization that issued id (may be just text)

# entry[].resource.snapshot.element[].definition
Organization that issued/manages the identifier.

# entry[].resource.snapshot.element[].comment
The Identifier.assigner may omit the .reference element and only contain a .display element reflecting the name or other textual information about the assigning organization.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
SHALL have a contained resource if a local reference is provided

# entry[].resource.snapshot.element[].mapping[].map
The target of a resource reference is a RIM entry point (Act, Role, or Entity)

# entry[].resource.snapshot.element[].mapping[].map
II.assigningAuthorityName but note that this is an improper use by the definition of the field.  Also Role.scoper

# entry[].resource.snapshot.element[].short
Whether this practitioner's record is in active use

# entry[].resource.snapshot.element[].definition
Whether this practitioner's record is in active use.

# entry[].resource.snapshot.element[].comment
If the practitioner is not in use by one organization, then it should mark the period on the PractitonerRole with an end date (even if they are active) as they may be active in another role.

# entry[].resource.snapshot.element[].requirements
Need to be able to mark a practitioner record as not to be used because it was created in error.

# entry[].resource.snapshot.element[].meaningWhenMissing
This resource is generally assumed to be active if no value is provided for the active element

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].short
The name(s) associated with the practitioner

# entry[].resource.snapshot.element[].definition
The name(s) associated with the practitioner.

# entry[].resource.snapshot.element[].comment
The selection of the use property should ensure that there is a single usual name specified, and others use the nickname (alias), old, or other values as appropriate.  

In general, select the value to be used in the ResourceReference.display based on this:

1. There is more than 1 name
2. Use = usual
3. Period is current to the date of the usage
4. Use = official
5. Other order as decided by internal business rules.

# entry[].resource.snapshot.element[].requirements
The name(s) that a Practitioner is known by. Where there are multiple, the name that the practitioner is usually known as should be used in the display.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

# entry[].resource.snapshot.element[].slicing.description
Extensions are always sliced by (at least) url

# entry[].resource.snapshot.element[].short
Additional content defined by implementations

# entry[].resource.snapshot.element[].definition
May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

# entry[].resource.snapshot.element[].comment
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# entry[].resource.snapshot.element[].short
usual | official | temp | nickname | anonymous | old | maiden

# entry[].resource.snapshot.element[].comment
Applications can assume that a name is current unless it explicitly says that it is temporary or old.

# entry[].resource.snapshot.element[].requirements
Allows the appropriate name for a particular context of use to be selected from among a set of names.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].isModifierReason
This is labeled as "Is Modifier" because applications should not mistake a temporary or old name etc.for a current/permanent one

# entry[].resource.snapshot.element[].mapping[].map
XPN.7, but often indicated by which field contains the name

# entry[].resource.snapshot.element[].definition
Specifies the entire name as it should be displayed e.g. on an application UI. This may be provided instead of or as well as the specific parts.

# entry[].resource.snapshot.element[].comment
Can provide both a text representation and parts. Applications updating a name SHALL ensure that when both text and parts are present,  no content is included in the text that isn't found in a part.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
The part of a name that links to the genealogy. In some cultures (e.g. Eritrea) the family name of a son is the first name of his father.

# entry[].resource.snapshot.element[].comment
Family Name may be decomposed into specific parts using extensions (de, nl, es related cultures).

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].short
Given names (not always 'first'). Includes middle names

# entry[].resource.snapshot.element[].comment
If only initials are recorded, they may be used in place of the full name parts. Initials may be separated into multiple given names but often aren't due to paractical limitations.  This element is not called "first name" since given names do not always come first.

# entry[].resource.snapshot.element[].orderMeaning
Given Names appear in the correct order for presenting the name

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
Part of the name that is acquired as a title due to academic, legal, employment or nobility status, etc. and that appears at the start of the name.

# entry[].resource.snapshot.element[].comment
Note that FHIR strings SHALL NOT exceed 1MB in size

# entry[].resource.snapshot.element[].orderMeaning
Prefixes appear in the correct order for presenting the name

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
Part of the name that is acquired as a title due to academic, legal, employment or nobility status, etc. and that appears at the end of the name.

# entry[].resource.snapshot.element[].comment
Note that FHIR strings SHALL NOT exceed 1MB in size

# entry[].resource.snapshot.element[].orderMeaning
Suffixes appear in the correct order for presenting the name

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
Indicates the period of time when this name was valid for the named person.

# entry[].resource.snapshot.element[].comment
A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See [Duration](datatypes.html#Duration).

# entry[].resource.snapshot.element[].requirements
Allows names to be placed in historical context.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
If present, start SHALL have a lower value than end

# entry[].resource.snapshot.element[].constraint[].expression
start.hasValue().not() or end.hasValue().not() or (start <= end)

# entry[].resource.snapshot.element[].mapping[].map
IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]

# entry[].resource.snapshot.element[].short
A contact detail for the practitioner (that apply to all roles)

# entry[].resource.snapshot.element[].definition
A contact detail for the practitioner, e.g. a telephone number or an email address.

# entry[].resource.snapshot.element[].comment
Person may have multiple ways to be contacted with different uses or applicable periods.  May need to have options for contacting the person urgently and to help with identification.  These typically will have home numbers, or mobile numbers that are not role specific.

# entry[].resource.snapshot.element[].requirements
Need to know how to reach a practitioner independent to any roles the practitioner may have.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
A system is required if a value is provided.

# entry[].resource.snapshot.element[].definition
Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

# entry[].resource.snapshot.element[].slicing.description
Extensions are always sliced by (at least) url

# entry[].resource.snapshot.element[].short
Additional content defined by implementations

# entry[].resource.snapshot.element[].definition
May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

# entry[].resource.snapshot.element[].comment
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# entry[].resource.snapshot.element[].short
phone | fax | email | pager | url | sms | other

# entry[].resource.snapshot.element[].definition
Telecommunications form for contact point - what communications system is required to make use of the contact.

# entry[].resource.snapshot.element[].comment
Note that FHIR strings SHALL NOT exceed 1MB in size

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].binding.description
Telecommunications form for contact point.

# entry[].resource.snapshot.element[].definition
The actual contact point details, in a form that is meaningful to the designated communication system (i.e. phone number or email address).

# entry[].resource.snapshot.element[].comment
Additional text data such as phone extension numbers, or notes about use of the contact are sometimes included in the value.

# entry[].resource.snapshot.element[].requirements
Need to support legacy numbers that are not in a tightly controlled format.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].short
home | work | temp | old | mobile - purpose of this contact point

# entry[].resource.snapshot.element[].definition
Identifies the purpose for the contact point.

# entry[].resource.snapshot.element[].comment
Applications can assume that a contact is current unless it explicitly says that it is temporary or old.

# entry[].resource.snapshot.element[].requirements
Need to track the way a person uses this contact, so a user can choose which is appropriate for their purpose.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].isModifierReason
This is labeled as "Is Modifier" because applications should not mistake a temporary or old contact etc.for a current/permanent one

# entry[].resource.snapshot.element[].short
Specify preferred order of use (1 = highest)

# entry[].resource.snapshot.element[].definition
Specifies a preferred order in which to use a set of contacts. ContactPoints with lower rank values are more preferred than those with higher rank values.

# entry[].resource.snapshot.element[].comment
Note that rank does not necessarily follow the order in which the contacts are represented in the instance.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].short
Time period when the contact point was/is in use

# entry[].resource.snapshot.element[].definition
Time period when the contact point was/is in use.

# entry[].resource.snapshot.element[].comment
A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See [Duration](datatypes.html#Duration).

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
If present, start SHALL have a lower value than end

# entry[].resource.snapshot.element[].constraint[].expression
start.hasValue().not() or end.hasValue().not() or (start <= end)

# entry[].resource.snapshot.element[].mapping[].map
IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]

# entry[].resource.snapshot.element[].comment
The PractitionerRole does not have an address value on it, as it is expected that the location property be used for this purpose (which has an address).

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

# entry[].resource.snapshot.element[].slicing.description
Extensions are always sliced by (at least) url

# entry[].resource.snapshot.element[].short
Additional content defined by implementations

# entry[].resource.snapshot.element[].definition
May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

# entry[].resource.snapshot.element[].comment
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# entry[].resource.snapshot.element[].short
home | work | temp | old | billing - purpose of this address

# entry[].resource.snapshot.element[].comment
Applications can assume that an address is current unless it explicitly says that it is temporary or old.

# entry[].resource.snapshot.element[].requirements
Allows an appropriate address to be chosen from a list of many.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].isModifierReason
This is labeled as "Is Modifier" because applications should not mistake a temporary or old address etc.for a current/permanent one

# entry[].resource.snapshot.element[].definition
Distinguishes between physical addresses (those you can visit) and mailing addresses (e.g. PO Boxes and care-of addresses). Most addresses are both.

# entry[].resource.snapshot.element[].comment
The definition of Address states that "address is intended to describe postal addresses, not physical locations". However, many applications track whether an address has a dual purpose of being a location that can be visited as well as being a valid delivery destination, and Postal addresses are often used as proxies for physical locations (also see the [Location](location.html#) resource).

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].binding.description
The type of an address (physical / postal).

# entry[].resource.snapshot.element[].definition
Specifies the entire address as it should be displayed e.g. on a postal label. This may be provided instead of or as well as the specific parts.

# entry[].resource.snapshot.element[].comment
Can provide both a text representation and parts. Applications updating an address SHALL ensure that  when both text and parts are present,  no content is included in the text that isn't found in a part.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].short
Street name, number, direction & P.O. Box etc.

# entry[].resource.snapshot.element[].definition
This component contains the house number, apartment number, street name, street direction,  P.O. Box number, delivery hints, and similar address information.

# entry[].resource.snapshot.element[].comment
Note that FHIR strings SHALL NOT exceed 1MB in size

# entry[].resource.snapshot.element[].orderMeaning
The order in which lines should appear in an address label

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].mapping[].map
XAD.1 + XAD.2 (note: XAD.1 and XAD.2 have different meanings for a company address than for a person address)

# entry[].resource.snapshot.element[].definition
The name of the city, town, suburb, village or other community or delivery center.

# entry[].resource.snapshot.element[].comment
Note that FHIR strings SHALL NOT exceed 1MB in size

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
The name of the administrative area (county).

# entry[].resource.snapshot.element[].comment
District is sometimes known as county, but in some regions 'county' is used in place of city (municipality), so county name should be conveyed in city instead.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
Sub-unit of a country with limited sovereignty in a federally organized country. A code may be used if codes are in common use (e.g. US 2 letter state codes).

# entry[].resource.snapshot.element[].comment
Note that FHIR strings SHALL NOT exceed 1MB in size

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
A postal code designating a region defined by the postal service.

# entry[].resource.snapshot.element[].comment
Note that FHIR strings SHALL NOT exceed 1MB in size

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].short
Country (e.g. can be ISO 3166 2 or 3 letter code)

# entry[].resource.snapshot.element[].definition
Country - a nation as commonly understood or generally accepted.

# entry[].resource.snapshot.element[].comment
ISO 3166 3 letter codes can be used in place of a human readable country name.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].comment
A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See [Duration](datatypes.html#Duration).

# entry[].resource.snapshot.element[].requirements
Allows addresses to be placed in historical context.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
If present, start SHALL have a lower value than end

# entry[].resource.snapshot.element[].constraint[].expression
start.hasValue().not() or end.hasValue().not() or (start <= end)

# entry[].resource.snapshot.element[].mapping[].map
IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]

# entry[].resource.snapshot.element[].definition
Administrative Gender - the gender that the person is considered to have for administration and record keeping purposes.

# entry[].resource.snapshot.element[].comment
Note that FHIR strings SHALL NOT exceed 1MB in size

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].binding.description
The gender of a person used for administrative purposes.

# entry[].resource.snapshot.element[].short
The date  on which the practitioner was born

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].comment
When providing a summary view (for example with Observation.value[x]) Attachment should be represented with a brief display text such as "Signed Procedure Consent".

# entry[].resource.snapshot.element[].requirements
Many EHR systems have the capability to capture an image of patients and personnel. Fits with newer social media usage too.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
If the Attachment has data, it SHALL have a contentType

# entry[].resource.snapshot.element[].mapping[].map
./ImageURI (only supports the URI reference)

# entry[].resource.snapshot.element[].short
Certification, licenses, or training pertaining to the provision of care

# entry[].resource.snapshot.element[].definition
The official certifications, training, and licenses that authorize or otherwise pertain to the provision of care by the practitioner.  For example, a medical license issued by a medical board authorizing the practitioner to practice medicine within a certian locality.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].definition
Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

# entry[].resource.snapshot.element[].slicing.description
Extensions are always sliced by (at least) url

# entry[].resource.snapshot.element[].short
Additional content defined by implementations

# entry[].resource.snapshot.element[].definition
May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance  applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

# entry[].resource.snapshot.element[].comment
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# entry[].resource.snapshot.element[].short
Extensions that cannot be ignored even if unrecognized

# entry[].resource.snapshot.element[].definition
May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

# entry[].resource.snapshot.element[].comment
There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions.  The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

# entry[].resource.snapshot.element[].requirements
Modifier extensions allow for extensions that *cannot* be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored.  This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the [definition of modifier extensions](extensibility.html#modifierExtension).

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
Must have either extensions or value[x], not both

# entry[].resource.snapshot.element[].isModifierReason
Modifier extensions are expected to modify the meaning or interpretation of the element that contains them

# entry[].resource.snapshot.element[].short
An identifier for this qualification for the practitioner

# entry[].resource.snapshot.element[].definition
An identifier that applies to this person's qualification in this role.

# entry[].resource.snapshot.element[].requirements
Often, specific identities are assigned for the qualification.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].mapping[].map
CX / EI (occasionally, more often EI maps to a resource id or a URL)

# entry[].resource.snapshot.element[].mapping[].map
II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs.  Also maps to Role[classCode=IDENT]

# entry[].resource.snapshot.element[].short
Coded representation of the qualification

# entry[].resource.snapshot.element[].definition
Coded representation of the qualification.

# entry[].resource.snapshot.element[].comment
Not all terminology uses fit this general pattern. In some cases, models should not use CodeableConcept and use Coding directly and provide their own structure for managing text, codings, translations and the relationship between elements and pre- and post-coordination.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].binding.description
Specific qualification the practitioner has to provide a service.

# entry[].resource.snapshot.element[].short
Period during which the qualification is valid

# entry[].resource.snapshot.element[].definition
Period during which the qualification is valid.

# entry[].resource.snapshot.element[].comment
A Period specifies a range of time; the context of use will specify whether the entire range applies (e.g. "the patient was an inpatient of the hospital for this time range") or one value from the range applies (e.g. "give to the patient between these two times").

Period is not used for a duration (a measure of elapsed time). See [Duration](datatypes.html#Duration).

# entry[].resource.snapshot.element[].requirements
Qualifications are often for a limited period of time, and can be revoked.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
If present, start SHALL have a lower value than end

# entry[].resource.snapshot.element[].constraint[].expression
start.hasValue().not() or end.hasValue().not() or (start <= end)

# entry[].resource.snapshot.element[].mapping[].map
IVL<TS>[lowClosed="true" and highClosed="true"] or URG<TS>[lowClosed="true" and highClosed="true"]

# entry[].resource.snapshot.element[].short
Organization that regulates and issues the qualification

# entry[].resource.snapshot.element[].definition
Organization that regulates and issues the qualification.

# entry[].resource.snapshot.element[].comment
References SHALL be a reference to an actual FHIR resource, and SHALL be resolveable (allowing for access control, temporary unavailability, etc.). Resolution can be either by retrieval from the URL, or, where applicable by resource type, by treating an absolute reference as a canonical URL and looking it up in a local registry/repository.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.snapshot.element[].constraint[].human
SHALL have a contained resource if a local reference is provided

# entry[].resource.snapshot.element[].mapping[].map
The target of a resource reference is a RIM entry point (Act, Role, or Entity)

# entry[].resource.snapshot.element[].short
A language the practitioner can use in patient communication

# entry[].resource.snapshot.element[].definition
A language the practitioner can use in patient communication.

# entry[].resource.snapshot.element[].comment
The structure aa-BB with this exact casing is one the most widely used notations for locale. However not all systems code this but instead have it as free text. Hence CodeableConcept instead of code as the data type.

# entry[].resource.snapshot.element[].requirements
Knowing which language a practitioner speaks can help in facilitating communication with patients.

# entry[].resource.snapshot.element[].constraint[].human
All FHIR elements must have a @value or children

# entry[].resource.snapshot.element[].constraint[].expression
hasValue() or (children().count() > id.count())

# entry[].resource.description
Codes for assigning sex at birth as specified by the [Office of the National Coordinator for Health IT (ONC)](https://www.healthit.gov/newsroom/about-onc)