> ## Documentation Index > Fetch the complete documentation index at: https://docs.metriport.com/llms.txt > Use this file to discover all available pages before exploring further. # ConceptMap > A statement of relationships from one set of concepts to one or more other concepts - either concepts in code systems, or data element/data element concepts, or classes in class models. ## Properties | Name | Required | Type | Description | | ------------------- | -------- | ------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------------------- | | url | No | uri | Canonical identifier for this concept map, represented as a URI (globally unique) | | identifier | No | [Identifier](/medical-api/fhir/data-types/identifier) | Additional identifier for the concept map | | version | No | string | Business version of the concept map | | name | No | string | Name for this concept map (computer friendly) | | title | No | string | Name for this concept map (human friendly) | | status | Yes | code | draft / active / retired / unknown | | experimental | No | boolean | For testing purposes, not real usage | | date | No | dateTime | Date last changed | | publisher | No | string | Name of the publisher (organization or individual) | | contact | No | [ContactDetail](/medical-api/fhir/data-types/contactdetail)\[] | Contact details for the publisher | | description | No | markdown | Natural language description of the concept map | | useContext | No | [UsageContext](/medical-api/fhir/data-types/usagecontext)\[] | The context that the content is intended to support | | jurisdiction | No | [CodeableConcept](/medical-api/fhir/data-types/codeableconcept)\[] | Intended jurisdiction for concept map (if applicable) | | purpose | No | markdown | Why this concept map is defined | | copyright | No | markdown | Use and/or publishing restrictions | | source\[x] | No | uri, canonical | The source value set that contains the concepts that are being mapped | | target\[x] | No | uri, canonical | The target value set which provides context for the mappings | | group | No | ConceptMapGroup | Same source and target systems | | - id | No | string | Unique id for inter-element referencing | | - extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | - modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored even if unrecognized | | - source | No | uri | Source system where concepts to be mapped are defined | | - sourceVersion | No | string | Specific version of the code system | | - target | No | uri | Target system that the concepts are to be mapped to | | - targetVersion | No | string | Specific version of the code system | | - element | Yes | ConceptMapGroupElement | Mappings for a concept from the source set | | - id | No | string | Unique id for inter-element referencing | | - extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | - modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored even if unrecognized | | - code | No | code | Identifies element being mapped | | - display | No | string | Display for the code | | - target | No | ConceptMapGroupElementTarget | Concept in target system for element | | - id | No | string | Unique id for inter-element referencing | | - extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | - modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored even if unrecognized | | - code | No | code | Code that identifies the target element | | - display | No | string | Display for the code | | - equivalence | Yes | code | relatedto / equivalent / equal / wider / subsumes / narrower / specializes / inexact / unmatched / disjoint | | - comment | No | string | Description of status/issues in mapping | | - dependsOn | No | ConceptMapGroupElementTargetDependsOn | Other elements required for this mapping (from context) | | - id | No | string | Unique id for inter-element referencing | | - extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | - modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored even if unrecognized | | - property | Yes | uri | Reference to property mapping depends on | | - system | No | canonical | Code System (if necessary) | | - value | Yes | string | Value of the referenced element | | - display | No | string | Display for the code (if value is a code) | | - product | No | \[] | Other concepts that this mapping also produces | | - unmapped | No | ConceptMapGroupUnmapped | What to do when there is no mapping for the source concept | | - id | No | string | Unique id for inter-element referencing | | - extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | - modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored even if unrecognized | | - mode | Yes | code | provided / fixed / other-map | | - code | No | code | Fixed code when mode = fixed | | - display | No | string | Display for the code | | - url | No | canonical | canonical reference to an additional ConceptMap to use for mapping if the source concept is unmapped | ## Search Parameters | Name | Type | Description | Expression | | --------------------- | --------- | ---------------------------------------------------------------------------------------------------- | -------------------------------------------------- | | context | token | A use context assigned to the concept map | ConceptMap.useContext.value | | context-quantity | quantity | A quantity- or range-valued use context assigned to the concept map | ConceptMap.useContext.value | | context-type | token | A type of use context assigned to the concept map | ConceptMap.useContext.code | | date | date | The concept map publication date | ConceptMap.date | | description | string | The description of the concept map | ConceptMap.description | | jurisdiction | token | Intended jurisdiction for the concept map | ConceptMap.jurisdiction | | name | string | Computationally friendly name of the concept map | ConceptMap.name | | publisher | string | Name of the publisher of the concept map | ConceptMap.publisher | | status | token | The current status of the concept map | ConceptMap.status | | title | string | The human-friendly name of the concept map | ConceptMap.title | | url | uri | The uri that identifies the concept map | ConceptMap.url | | version | token | The business version of the concept map | ConceptMap.version | | context-type-quantity | composite | A use context type and quantity- or range-based value assigned to the concept map | ConceptMap.useContext | | context-type-value | composite | A use context type and value assigned to the concept map | ConceptMap.useContext | | identifier | token | External identifier for the concept map | ConceptMap.identifier | | dependson | uri | Reference to property mapping depends on | ConceptMap.group.element.target.dependsOn.property | | other | reference | canonical reference to an additional ConceptMap to use for mapping if the source concept is unmapped | ConceptMap.group.unmapped.url | | product | uri | Reference to property mapping depends on | ConceptMap.group.element.target.product.property | | source | reference | The source value set that contains the concepts that are being mapped | ConceptMap.source | | source-code | token | Identifies element being mapped | ConceptMap.group.element.code | | source-system | uri | Source system where concepts to be mapped are defined | ConceptMap.group.source | | source-uri | reference | The source value set that contains the concepts that are being mapped | ConceptMap.source | | target | reference | The target value set which provides context for the mappings | ConceptMap.target | | target-code | token | Code that identifies the target element | ConceptMap.group.element.target.code | | target-system | uri | Target system that the concepts are to be mapped to | ConceptMap.group.target | | target-uri | reference | The target value set which provides context for the mappings | ConceptMap.target | ## Inherited Properties | Name | Required | Type | Description | | ----------------- | -------- | ------------------------------------------------------ | ------------------------------------------------------ | | id | No | string | Logical id of this artifact | | meta | No | [Meta](/medical-api/fhir/data-types/meta) | Metadata about the resource | | implicitRules | No | uri | A set of rules under which this content was created | | language | No | code | Language of the resource content | | text | No | [Narrative](/medical-api/fhir/data-types/narrative) | Text summary of the resource, for human interpretation | | contained | No | Resource\[] | Contained, inline Resources | | extension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Additional content defined by implementations | | modifierExtension | No | [Extension](/medical-api/fhir/data-types/extension)\[] | Extensions that cannot be ignored | To view the FHIR specification for this resource, see [ConceptMap](https://www.hl7.org/fhir/StructureDefinition/ConceptMap).