description: Identifies the originating system of the binary content associated with `DocumentReference.content.attachment`. This extension represents the source system that produced or provided the underlying file (e.g., PACS, LIS, EHR module, or external repository), independent of the system managing the `DocumentReference` resource itself.
package_name: il.fhir.r4.ashmc
derivation: constraint
name: DocumentSource
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://fhir.ashmc.co.il/StructureDefinition/ext-document-source'}
    index: 1
  value:
    choices: [valueCodeableConcept]
    index: 3
  valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 4}
  value[x]:
    elements:
      coding:
        index: 5
        slicing:
          rules: open
          discriminator:
          - {path: system, type: value}
          min: null
          slices:
            router:
              match: {system: 'http://fhir.ashmc.co.il/cs/document-router-source'}
              schema:
                index: 6
                elements:
                  system:
                    pattern: {type: Uri, value: 'http://fhir.ashmc.co.il/cs/document-router-source'}
                    index: 7
                  code: {index: 8}
                required: [system, code]
package_version: 0.4.1
extensions: {}
class: extension
kind: complex-type
url: http://fhir.ashmc.co.il/StructureDefinition/ext-document-source
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.5.0
required: [value, valueCodeableConcept]