{
  "resourceType": "StructureDefinition",
  "id": "KT2ActivityDefinition",
  "language": "nl-NL",
  "url": "http://koppeltaal.nl/fhir/StructureDefinition/KT2ActivityDefinition",
  "version": "0.10.1",
  "name": "KT2_ActivityDefinition",
  "status": "draft",
  "date": "2025-10-07",
  "publisher": "VZVZ",
  "contact": [
    {
      "name": "VZVZ",
      "telecom": [
        {
          "system": "email",
          "value": "standaardisatie@vzvz.nl",
          "use": "work"
        }
      ]
    }
  ],
  "description": "The (FHIR) ActivityDefinition (resource) describes an eHealth activity that is available for assignment to a patient. When assigning an eHealth activity to a patient, an eHealth Task is created, in which sub-activities are included as contained resources that refer to the main task via Task.partOf.",
  "jurisdiction": [
    {
      "coding": [
        {
          "code": "NL",
          "system": "urn:iso:std:iso:3166",
          "display": "Netherlands"
        }
      ]
    }
  ],
  "copyright": "VZVZ",
  "fhirVersion": "4.0.1",
  "kind": "resource",
  "abstract": false,
  "type": "ActivityDefinition",
  "baseDefinition": "http://hl7.org/fhir/StructureDefinition/ActivityDefinition",
  "derivation": "constraint",
  "differential": {
    "element": [
      {
        "id": "ActivityDefinition",
        "path": "ActivityDefinition",
        "short": "Description of an eHealth activity",
        "comment": "The (FHIR) ActivityDefinition describes an eHealth activity available to assign to a patient. The assignment of an eHealth activity to a patient creates an eHealth Task (Task resource). This task can contain sub activities as contained resources which refer to the main task using the Task.partOf element."
      },
      {
        "id": "ActivityDefinition.extension",
        "path": "ActivityDefinition.extension",
        "slicing": {
          "discriminator": [
            {
              "type": "value",
              "path": "url"
            }
          ],
          "ordered": false,
          "rules": "open"
        },
        "min": 1
      },
      {
        "id": "ActivityDefinition.extension:resource-origin",
        "path": "ActivityDefinition.extension",
        "sliceName": "resource-origin",
        "min": 0,
        "max": "1",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "http://koppeltaal.nl/fhir/StructureDefinition/resource-origin"
            ]
          }
        ]
      },
      {
        "id": "ActivityDefinition.extension:endpoint",
        "path": "ActivityDefinition.extension",
        "sliceName": "endpoint",
        "short": "Endpoint to the service application",
        "definition": "Mandatory reference to the service application (endpoint) that provides the eHealth activity. Can be more than one endpoint.",
        "min": 1,
        "max": "*",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "http://koppeltaal.nl/fhir/StructureDefinition/KT2EndpointExtension"
            ]
          }
        ]
      },
      {
        "id": "ActivityDefinition.extension:publisherId",
        "path": "ActivityDefinition.extension",
        "sliceName": "publisherId",
        "min": 0,
        "max": "*",
        "type": [
          {
            "code": "Extension",
            "profile": [
              "http://koppeltaal.nl/fhir/StructureDefinition/KT2PublisherId"
            ]
          }
        ]
      },
      {
        "id": "ActivityDefinition.url",
        "path": "ActivityDefinition.url",
        "min": 1
      },
      {
        "id": "ActivityDefinition.title",
        "path": "ActivityDefinition.title",
        "min": 1
      },
      {
        "id": "ActivityDefinition.experimental",
        "path": "ActivityDefinition.experimental",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.subject[x]",
        "path": "ActivityDefinition.subject[x]",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.date",
        "path": "ActivityDefinition.date",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.publisher",
        "path": "ActivityDefinition.publisher",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.contact",
        "path": "ActivityDefinition.contact",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.useContext",
        "path": "ActivityDefinition.useContext",
        "slicing": {
          "discriminator": [
            {
              "type": "pattern",
              "path": "code"
            }
          ],
          "rules": "open"
        },
        "definition": "The context for the content of the eHealth activity",
        "comment": "E.g. the activity is targeted to a certain age group, or requires specific technical features like relative participation"
      },
      {
        "id": "ActivityDefinition.useContext.code",
        "path": "ActivityDefinition.useContext.code",
        "short": "Usage context type including Koppeltaal extensions",
        "definition": "Standard FHIR usage context types plus Koppeltaal specific types like feature",
        "binding": {
          "strength": "required",
          "valueSet": "http://vzvz.nl/fhir/ValueSet/koppeltaal-use-context-type",
          "description": "Standard usage context types extended with Koppeltaal specific context types"
        }
      },
      {
        "id": "ActivityDefinition.useContext:koppeltaal-expansion",
        "path": "ActivityDefinition.useContext",
        "sliceName": "koppeltaal-expansion",
        "short": "Optional expansion for the activity",
        "definition": "Indicates an optional expansion for the activity, such as support for relative participation",
        "min": 0,
        "max": "*"
      },
      {
        "id": "ActivityDefinition.useContext:koppeltaal-expansion.code",
        "path": "ActivityDefinition.useContext.code",
        "patternCoding": {
          "code": "koppeltaal-expansion",
          "system": "http://vzvz.nl/fhir/CodeSystem/koppeltaal-usage-context-type"
        }
      },
      {
        "id": "ActivityDefinition.useContext:koppeltaal-expansion.value[x]",
        "path": "ActivityDefinition.useContext.value[x]",
        "slicing": {
          "discriminator": [
            {
              "type": "type",
              "path": "$this"
            }
          ],
          "ordered": false,
          "rules": "open"
        }
      },
      {
        "id": "ActivityDefinition.useContext:koppeltaal-expansion.value[x]:valueCodeableConcept",
        "path": "ActivityDefinition.useContext.value[x]",
        "sliceName": "valueCodeableConcept",
        "short": "The specific expansion",
        "definition": "The specific optional expansion for this activity",
        "min": 1,
        "max": "1",
        "type": [
          {
            "code": "CodeableConcept"
          }
        ],
        "binding": {
          "strength": "required",
          "valueSet": "http://vzvz.nl/fhir/ValueSet/koppeltaal-expansion",
          "description": "Optional expansions for Koppeltaal activities"
        }
      },
      {
        "id": "ActivityDefinition.jurisdiction",
        "path": "ActivityDefinition.jurisdiction",
        "definition": "This element is not used",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.purpose",
        "path": "ActivityDefinition.purpose",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.usage",
        "path": "ActivityDefinition.usage",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.copyright",
        "path": "ActivityDefinition.copyright",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.approvalDate",
        "path": "ActivityDefinition.approvalDate",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.lastReviewDate",
        "path": "ActivityDefinition.lastReviewDate",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.effectivePeriod",
        "path": "ActivityDefinition.effectivePeriod",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.topic",
        "path": "ActivityDefinition.topic",
        "short": "E.g. Self-Treatment and Self-Assessment, etc.",
        "definition": "Descriptive topics related to the content of the activity. The topic is used to indicate that the activity is intended or suitable for initialization by patients.",
        "binding": {
          "strength": "extensible",
          "valueSet": "http://vzvz.nl/fhir/ValueSet/koppeltaal-definition-topic",
          "description": "High-level categorization of the definition, used for indicating special patient initialised activities"
        }
      },
      {
        "id": "ActivityDefinition.author",
        "path": "ActivityDefinition.author",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.editor",
        "path": "ActivityDefinition.editor",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.reviewer",
        "path": "ActivityDefinition.reviewer",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.endorser",
        "path": "ActivityDefinition.endorser",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.relatedArtifact",
        "path": "ActivityDefinition.relatedArtifact",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.library",
        "path": "ActivityDefinition.library",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.kind",
        "path": "ActivityDefinition.kind",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.profile",
        "path": "ActivityDefinition.profile",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.intent",
        "path": "ActivityDefinition.intent",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.priority",
        "path": "ActivityDefinition.priority",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.doNotPerform",
        "path": "ActivityDefinition.doNotPerform",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.timing[x]",
        "path": "ActivityDefinition.timing[x]",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.location",
        "path": "ActivityDefinition.location",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.product[x]",
        "path": "ActivityDefinition.product[x]",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.quantity",
        "path": "ActivityDefinition.quantity",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.dosage",
        "path": "ActivityDefinition.dosage",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.bodySite",
        "path": "ActivityDefinition.bodySite",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.specimenRequirement",
        "path": "ActivityDefinition.specimenRequirement",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.observationRequirement",
        "path": "ActivityDefinition.observationRequirement",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.observationResultRequirement",
        "path": "ActivityDefinition.observationResultRequirement",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.transform",
        "path": "ActivityDefinition.transform",
        "max": "0"
      },
      {
        "id": "ActivityDefinition.dynamicValue",
        "path": "ActivityDefinition.dynamicValue",
        "max": "0"
      }
    ]
  }
}