HL7 FHIR Implementation Guide: DK Core
1.0.0 - trial-use
HL7 FHIR Implementation Guide: DK Core
1.0.0 - trial-use
HL7 FHIR Implementation Guide: DK Core, published by HL7 Denmark. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7dk/dk-core/ and changes regularly. See the Directory of published versions
| Draft as of 2024-09-23 |
Definitions for the dk-core-cpr-identifier data type profile.
Guidance on how to interpret the contents of this table can be found here
| 0. Identifier | |
| 2. Identifier.use | |
| Fixed Value | official |
| 4. Identifier.system | |
| Control | 1..? |
| Fixed Value | urn:oid:1.2.208.176.1.2 |
| 6. Identifier.value | |
| Control | 1..? |
| Must Support | false |
| Max Length: | 10 |
| Invariants | cpr: Requirement of danish civil registration numbers. See https://cpr.dk/cpr-systemet/opbygning-af-cpr-nummeret/#:~:text=5%20%2D%206%20position%20angiver%20personens,i%20personnummeret%20angiver%20personens%20k%C3%B8n. (matches('^((((0[1-9]|1[0-9]|2[0-9]|3[0-1])(01|03|05|07|08|10|12))|((0[1-9]|1[0-9]|2[0-9]|30)(04|06|09|11))|((0[1-9]|1[0-9]|2[0-9])(02)))[0-9]{6})$')) |
Guidance on how to interpret the contents of this table can be found here
| 0. Identifier | |
| Definition | An identifier - identifies some entity uniquely and unambiguously. Typically this is used for business identifiers. |
| Short | An identifier intended for computation |
| Comments | The rules of the identifier.type determine if a check digit is part of the ID value or sent separately, such as through the checkDigit extension. |
| Control | 0..* |
| Is Modifier | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) ident-1: Identifier with no value has limited utility. If communicating that an identifier value has been suppressed or missing, the value element SHOULD be present with an extension indicating the missing semantic - e.g. data-absent-reason (value.exists()) |
| 2. Identifier.use | |
| Definition | The purpose of this identifier. |
| Short | usual | official | temp | secondary | old (If known) |
| Comments | Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. |
| Control | 0..1 |
| Binding | The codes SHALL be taken from IdentifierUsehttp://hl7.org/fhir/ValueSet/identifier-use|5.0.0 (required to http://hl7.org/fhir/ValueSet/identifier-use|5.0.0)Identifies the purpose for this identifier, if known . |
| Type | code |
| Is Modifier | true because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one. |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| Summary | true |
| Requirements | Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. |
| Fixed Value | official |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 4. Identifier.system | |
| Definition | Establishes the namespace for the value - that is, an absolute URL that describes a set values that are unique. |
| Short | The namespace for the identifier value |
| Comments | Identifier.system is always case sensitive. |
| Control | 10..1 |
| Type | uri |
| Is Modifier | false |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| Summary | true |
| 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. |
| Fixed Value | urn:oid:1.2.208.176.1.2 |
| Example | <br/><b>General</b>:http://www.acme.com/identifiers/patient |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 6. Identifier.value | |
| Definition | The portion of the identifier typically relevant to the user and which is unique within the context of the system. |
| Short | The value that is unique |
| Comments | 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 http://hl7.org/fhir/StructureDefinition/rendered-value). 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. |
| Control | 10..1 This element is affected by the following invariants: ident-1 |
| Type | string |
| Is Modifier | false |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| Must Support | false |
| Summary | true |
| Max Length: | 10 |
| Example | <br/><b>General</b>:123456 |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) cpr: Requirement of danish civil registration numbers. See https://cpr.dk/cpr-systemet/opbygning-af-cpr-nummeret/#:~:text=5%20%2D%206%20position%20angiver%20personens,i%20personnummeret%20angiver%20personens%20k%C3%B8n. ( matches('^((((0[1-9]|1[0-9]|2[0-9]|3[0-1])(01|03|05|07|08|10|12))|((0[1-9]|1[0-9]|2[0-9]|30)(04|06|09|11))|((0[1-9]|1[0-9]|2[0-9])(02)))[0-9]{6})$')) |
Guidance on how to interpret the contents of this table can be found here
| 0. Identifier | |
| Definition | An identifier - identifies some entity uniquely and unambiguously. Typically this is used for business identifiers. |
| Short | An identifier intended for computation |
| Comments | The rules of the identifier.type determine if a check digit is part of the ID value or sent separately, such as through the checkDigit extension. |
| Control | 0..* |
| Is Modifier | false |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ident-1: Identifier with no value has limited utility. If communicating that an identifier value has been suppressed or missing, the value element SHOULD be present with an extension indicating the missing semantic - e.g. data-absent-reason ( value.exists()) |
| 2. Identifier.id | |
| Definition | Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces. |
| Short | Unique id for inter-element referencing |
| Control | 0..1 This element is affected by the following invariants: ele-1 |
| Type | id |
| Is Modifier | false |
| XML Format | In the XML format, this property is represented as an attribute. |
| Summary | false |
| 4. Identifier.extension | |
| 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 managable, 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. |
| Short | Additional content defined by implementations |
| Comments | 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. |
| Control | 0..* |
| Type | Extension |
| Is Modifier | false |
| Summary | false |
| Alternate Names | extensions, user content |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))ext-1: Must have either extensions or value[x], not both ( extension.exists() != value.exists()) |
| Slicing | This element introduces a set of slices on Identifier.extension. The slices areUnordered and Open, and can be differentiated using the following discriminators: |
| 6. Identifier.use | |
| Definition | The purpose of this identifier. |
| Short | usual | official | temp | secondary | old (If known) |
| Comments | Applications can assume that an identifier is permanent unless it explicitly says that it is temporary. |
| Control | 0..1 |
| Binding | The codes SHALL be taken from IdentifierUse (required to http://hl7.org/fhir/ValueSet/identifier-use|5.0.0)Identifies the purpose for this identifier, if known . |
| Type | code |
| Is Modifier | true because This is labeled as "Is Modifier" because applications should not mistake a temporary id for a permanent one. |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| Summary | true |
| Requirements | Allows the appropriate identifier for a particular context of use to be selected from among a set of identifiers. |
| Fixed Value | official |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 8. Identifier.type | |
| Definition | A coded type for the identifier that can be used to determine which identifier to use for a specific purpose. |
| Short | Description of identifier |
| Comments | 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. |
| Control | 0..1 |
| Binding | Unless not suitable, these codes SHALL be taken from IdentifierTypeCodes (extensible to http://hl7.org/fhir/ValueSet/identifier-type)A coded type for an identifier that can be used to determine which identifier to use for a specific purpose. |
| Type | CodeableConcept |
| Is Modifier | false |
| Summary | true |
| Requirements | Allows users to make use of identifiers when the identifier system is not known. |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 10. Identifier.system | |
| Definition | Establishes the namespace for the value - that is, an absolute URL that describes a set values that are unique. |
| Short | The namespace for the identifier value |
| Comments | Identifier.system is always case sensitive. |
| Control | 1..1 |
| Type | uri |
| Is Modifier | false |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| Summary | true |
| 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. |
| Fixed Value | urn:oid:1.2.208.176.1.2 |
| Example | <br/><b>General</b>:http://www.acme.com/identifiers/patient |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 12. Identifier.value | |
| Definition | The portion of the identifier typically relevant to the user and which is unique within the context of the system. |
| Short | The value that is unique |
| Comments | 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 http://hl7.org/fhir/StructureDefinition/rendered-value). 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. |
| Control | 1..1 This element is affected by the following invariants: ident-1 |
| Type | string |
| Is Modifier | false |
| Primitive Value | This primitive element may be present, or absent, or replaced by an extension |
| Must Support | false |
| Summary | true |
| Max Length: | 10 |
| Example | <br/><b>General</b>:123456 |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))cpr: Requirement of danish civil registration numbers. See https://cpr.dk/cpr-systemet/opbygning-af-cpr-nummeret/#:~:text=5%20%2D%206%20position%20angiver%20personens,i%20personnummeret%20angiver%20personens%20k%C3%B8n. ( matches('^((((0[1-9]|1[0-9]|2[0-9]|3[0-1])(01|03|05|07|08|10|12))|((0[1-9]|1[0-9]|2[0-9]|30)(04|06|09|11))|((0[1-9]|1[0-9]|2[0-9])(02)))[0-9]{6})$')) |
| 14. Identifier.period | |
| Definition | Time period during which identifier is/was valid for use. |
| Short | Time period when id is/was valid for use |
| Control | 0..1 |
| Type | Period |
| Is Modifier | false |
| Summary | true |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |
| 16. Identifier.assigner | |
| Definition | Organization that issued/manages the identifier. |
| Short | Organization that issued id (may be just text) |
| Comments | 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. |
| Control | 0..1 |
| Type | Reference(Organization) |
| Is Modifier | false |
| Summary | true |
| Invariants | ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count())) |