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QTY: Quantity (V3 Data Type) - Clinical Document Architecture v2.0.1-sd-202510-matchbox-patch

Logical Model: QTY: Quantity (V3 Data Type) ( Abstract )
Official URL:http://hl7.org/cda/stds/core/StructureDefinition/QTY Version:2.0.1-sd-202510-matchbox-patch
Active as of 2025-10-29 Computable Name:QTY

The quantity data type is an abstract generalization for all data types (1) whose value set has an order relation (less-or-equal) and (2) where difference is defined in all of the data type's totally ordered value subsets. The quantity type abstraction is needed in defining certain other types, such as the interval and the probability distribution.

Usages:

You can also check for usages in the FHIR IG Statistics

Formal Views of Template Content

Description of Template, Differentials, Snapshots and how the different presentations work.

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Resource Content

{
  "resourceType" : "StructureDefinition",
  "id" : "QTY",
  "extension" : [
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/logical-target",
      "_valueBoolean" : {
        "extension" : [
          {
            "url" : "http://hl7.org/fhir/StructureDefinition/data-absent-reason",
            "valueCode" : "not-applicable"
          }
        ]
      }
    },
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/xml-namespace",
      "valueUri" : "urn:hl7-org:v3"
    },
    {
      "url" : "http://hl7.org/fhir/tools/StructureDefinition/logical-container",
      "valueUri" : "http://hl7.org/cda/stds/core/StructureDefinition/ClinicalDocument"
    }
  ],
  "url" : "http://hl7.org/cda/stds/core/StructureDefinition/QTY",
  "version" : "2.0.1-sd-202510-matchbox-patch",
  "name" : "QTY",
  "title" : "QTY: Quantity (V3 Data Type)",
  "status" : "active",
  "experimental" : false,
  "date" : "2025-10-29T22:15:57+01:00",
  "publisher" : "Health Level 7",
  "contact" : [
    {
      "name" : "HL7 International - Structured Documents",
      "telecom" : [
        {
          "system" : "url",
          "value" : "http://www.hl7.org/Special/committees/structure"
        },
        {
          "system" : "email",
          "value" : "structdog@lists.HL7.org"
        }
      ]
    }
  ],
  "description" : "The quantity data type is an abstract generalization for all data types (1) whose value set has an order relation (less-or-equal) and (2) where difference is defined in all of the data type's totally ordered value subsets. The quantity type abstraction is needed in defining certain other types, such as the interval and the probability distribution.",
  "fhirVersion" : "5.0.0",
  "mapping" : [
    {
      "identity" : "rim",
      "uri" : "http://hl7.org/v3",
      "name" : "RIM Mapping"
    }
  ],
  "kind" : "logical",
  "abstract" : true,
  "type" : "http://hl7.org/cda/stds/core/StructureDefinition/QTY",
  "baseDefinition" : "http://hl7.org/cda/stds/core/StructureDefinition/ANY",
  "derivation" : "specialization",
  "differential" : {
    "element" : [
      {
        "id" : "QTY",
        "path" : "QTY",
        "definition" : "is an abstract generalization for all data types (1) whose value set has an order relation (less-or-equal) and (2) where difference is defined in all of the data type's totally ordered value subsets. The quantity type abstraction is needed in defining certain other types, such as the interval and the probability distribution.",
        "min" : 1,
        "max" : "*"
      }
    ]
  }
}