description: A radiotherapy treatment session with the patient.
package_name: hl7.fhir.us.codex-radiation-therapy
derivation: constraint
name: RadiotherapyTreatmentSession
type: Encounter
elements:
  extension:
    index: 0
    slicing:
      rules: open
      ordered: false
      discriminator:
      - {path: url, type: value}
      min: null
      slices:
        radiotherapySessionNumber:
          match: {url: null}
          schema: {short: Session Number, type: Extension, mustSupport: true, url: 'http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-session-number', index: 1}
          min: 0
          max: 1
  identifier:
    index: 2
    slicing:
      rules: open
      discriminator:
      - {path: system, type: value}
      min: null
      slices:
        dicomTreatmentSessionUid:
          match: {system: 'urn:dicom:uid'}
          schema:
            short: DICOM Treatment Session UID (300A,0700)
            mustSupport: true
            index: 3
            elements:
              system:
                pattern: {type: Uri, value: 'urn:dicom:uid'}
                index: 4
  serviceType:
    pattern:
      type: CodeableConcept
      value:
        coding:
        - {code: '1287742003', system: 'http://snomed.info/sct', display: Radiotherapy (procedure)}
    index: 5
  basedOn:
    index: 6
    slicing:
      rules: open
      description: Slicing based on the profile
      discriminator:
      - {path: $this.resolve(), type: profile}
      min: null
      slices:
        treatment-plan:
          match: {}
          schema:
            short: Radiotherapy Treatment Plan for which this Session takes place or took place.
            refers: ['http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-treatment-plan']
            type: Reference
            mustSupport: true
            array: true
            index: 7
          min: 0
        planned-phase:
          match: {}
          schema:
            short: Radiotherapy Planned Phase for which this Session takes place or took place.
            refers: ['http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-planned-phase']
            type: Reference
            mustSupport: true
            array: true
            index: 8
          min: 0
  location:
    elements:
      location:
        type: Reference
        refers: ['http://hl7.org/fhir/us/core/StructureDefinition/us-core-location']
        index: 9
package_version: 2.0.0
extensions:
  radiotherapySessionNumber: {url: 'http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-session-number', min: 0, max: 1, short: Session Number, type: Extension, mustSupport: true, index: 1}
class: profile
kind: resource
url: http://hl7.org/fhir/us/codex-radiation-therapy/StructureDefinition/codexrt-radiotherapy-treatment-session
base: http://hl7.org/fhir/us/core/StructureDefinition/us-core-encounter
version: 2.0.0
required: [serviceType]