FHIR IG analytics| Package | hl7.fhir.uv.extensions |
| Resource Type | StructureDefinition |
| Id | StructureDefinition-request-category.json |
| FHIR Version | R5 |
| Source | https://build.fhir.org/ig/HL7/fhir-extensions/StructureDefinition-request-category.html |
| URL | http://hl7.org/fhir/StructureDefinition/request-category |
| Version | 5.3.0 |
| Status | draft |
| Date | 2026-10-05 |
| Name | RequestCategory |
| Title | Request Category |
| Realm | uv |
| Authority | hl7 |
| Description | Partitions the request into one or more categories that can be used to filter searching, to govern access control and/or to guide system behavior. |
| Type | Extension |
| Kind | complex-type |
No resources found
No resources found
No extension usage examples found
Note: links and images are rebased to the (stated) source
Generated Narrative: StructureDefinition request-category
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  Extension | 0..* | Extension | Classification of the request | |
  extension | 0..0 | Extension | ||
| url | 1..1 | uri | "http://hl7.org/fhir/StructureDefinition/request-category" | |
  value[x] | 1..1 | CodeableConcept | Value of extension | |
| Documentation for this format | ||||
FHIR
FHIRsmith{
"resourceType": "StructureDefinition",
"id": "request-category",
"text": {
"status": "extensions",
"div": "<!-- snip (see above) -->"
},
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode": "fhir"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger": 1
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode": "trial-use"
},
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-type-characteristics",
"valueCode": "can-bind"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/request-category",
"identifier": [
{
"system": "urn:ietf:rfc:3986",
"value": "urn:oid:2.16.840.1.113883.4.642.40.97.42.154"
}
],
"version": "5.3.0",
"name": "RequestCategory",
"title": "Request Category",
"status": "draft",
"experimental": false,
"date": "2026-10-05",
"publisher": "HL7 International / FHIR Infrastructure",
"contact": [
{
"telecom": [
{
"system": "url",
"value": "http://www.hl7.org/Special/committees/fiwg"
}
]
}
],
"description": "Partitions the request into one or more categories that can be used to filter searching, to govern access control and/or to guide system behavior.",
"jurisdiction": [
{
"coding": [
{
"system": "http://unstats.un.org/unsd/methods/m49/m49.htm",
"code": "001"
}
]
}
],
"fhirVersion": "5.0.0",
"mapping": [
{
"identity": "v2",
"uri": "http://hl7.org/v2",
"name": "HL7 v2 Mapping"
},
{
"identity": "rim",
"uri": "http://hl7.org/v3",
"name": "RIM Mapping"
}
],
"kind": "complex-type",
"abstract": false,
"context": [
{
"extension": [
{
"extension": [
{
"url": "startFhirVersion",
"valueCode": "5.0"
},
{
"url": "endFhirVersion",
"valueCode": "5.0"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/version-specific-use"
}
],
"type": "element",
"expression": "RequestOrchestration"
},
{
"extension": [
{
"extension": [
{
"url": "startFhirVersion",
"valueCode": "4.0"
},
{
"url": "endFhirVersion",
"valueCode": "4.0"
}
],
"url": "http://hl7.org/fhir/StructureDefinition/version-specific-use"
}
],
"type": "element",
"expression": "RequestGroup"
}
],
"type": "Extension",
"baseDefinition": "http://hl7.org/fhir/StructureDefinition/Extension",
"derivation": "constraint",
"snapshot": {
"extension": [
{
"url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
"valueString": "5.0.0"
}
],
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "Classification of the request",
"definition": "Partitions the request into one or more categories that can be used to filter searching, to govern access control and/or to guide system behavior.",
"min": 0,
"max": "*",
"base": {
"path": "Extension",
"min": 0,
"max": "*"
},
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() or (children().count() > id.count())",
"source": "http://hl7.org/fhir/StructureDefinition/Element"
},
{
"key": "ext-1",
"severity": "error",
"human": "Must have either extensions or value[x], not both",
"expression": "extension.exists() != value.exists()",
"source": "http://hl7.org/fhir/StructureDefinition/Extension"
}
],
"isModifier": false
},
{
"id": "Extension.id",
"path": "Extension.id",
"representation": [
"xmlAttr"
],
"short": "Unique id for inter-element referencing",
"definition": "Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.",
"min": 0,
"max": "1",
"base": {
"path": "Element.id",
"min": 0,
"max": "1"
},
"type": [
{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "id"
}
],
"code": "http://hl7.org/fhirpath/System.String"
}
],
"condition": [
"ele-1"
],
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "n/a"
}
]
},
{
"id": "Extension.extension",
"path": "Extension.extension",
"slicing": {
"discriminator": [
{
"type": "value",
"path": "url"
}
],
"description": "Extensions are always sliced by (at least) url",
"rules": "open"
},
"short": "Extension",
"definition": "An Extension",
"min": 0,
"max": "0",
"base": {
"path": "Element.extension",
"min": 0,
"max": "*"
},
"type": [
{
"code": "Extension"
}
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() or (children().count() > id.count())",
"source": "http://hl7.org/fhir/StructureDefinition/Element"
},
{
"key": "ext-1",
"severity": "error",
"human": "Must have either extensions or value[x], not both",
"expression": "extension.exists() != value.exists()",
"source": "http://hl7.org/fhir/StructureDefinition/Extension"
}
],
"isModifier": false,
"isSummary": false
},
{
"id": "Extension.url",
"path": "Extension.url",
"representation": [
"xmlAttr"
],
"short": "identifies the meaning of the extension",
"definition": "Source of the definition for the extension code - a logical name or a URL.",
"comment": "The definition may point directly to a computable or human-readable definition of the extensibility codes, or it may be a logical URI as declared in some other specification. The definition SHALL be a URI for the Structure Definition defining the extension.",
"min": 1,
"max": "1",
"base": {
"path": "Extension.url",
"min": 1,
"max": "1"
},
"type": [
{
"extension": [
{
"url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fhir-type",
"valueUrl": "uri"
}
],
"code": "http://hl7.org/fhirpath/System.String"
}
],
"fixedUri": "http://hl7.org/fhir/StructureDefinition/request-category",
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"short": "Value of extension",
"definition": "Value of extension - must be one of a constrained set of the data types (see [Extensibility](http://hl7.org/fhir/R5/extensibility.html) for a list).",
"min": 1,
"max": "1",
"base": {
"path": "Extension.value[x]",
"min": 0,
"max": "1"
},
"type": [
{
"code": "CodeableConcept"
}
],
"condition": [
"ext-1"
],
"constraint": [
{
"key": "ele-1",
"severity": "error",
"human": "All FHIR elements must have a @value or children",
"expression": "hasValue() or (children().count() > id.count())",
"source": "http://hl7.org/fhir/StructureDefinition/Element"
}
],
"isModifier": false,
"isSummary": false,
"mapping": [
{
"identity": "rim",
"map": "N/A"
}
]
}
]
},
"differential": {
"element": [
{
"id": "Extension",
"path": "Extension",
"short": "Classification of the request",
"definition": "Partitions the request into one or more categories that can be used to filter searching, to govern access control and/or to guide system behavior.",
"requirements": "Categorization might be done automatically (inferred by code) or manually by user assertion. The absence of a category may limit the ability to determine when the element should be handled, so strong consideration should be given to how systems will be able to determine category values for legacy data and how data that cannot be categorized will be handled. As well, some categories might not be mutually exclusive, so systems should prepare for multiple declared categories - even within a single category 'axis'. In general, there should not be a 'strong' binding ('required' or 'extensible') on the category element overall. Instead, the element can be sliced and bindings can be asserted that apply to particular repetitions.",
"min": 0,
"max": "*"
},
{
"id": "Extension.extension",
"path": "Extension.extension",
"max": "0"
},
{
"id": "Extension.url",
"path": "Extension.url",
"fixedUri": "http://hl7.org/fhir/StructureDefinition/request-category"
},
{
"id": "Extension.value[x]",
"path": "Extension.value[x]",
"min": 1,
"type": [
{
"code": "CodeableConcept"
}
]
}
]
}
}