description: This template wraps relevant problems or diagnoses at the close of a visit or that need to be followed after the visit. If the encounter is associated with a Hospital Discharge, the Hospital Discharge Diagnosis must be used. This entry requires at least one Problem Observation entry.  The Problem Status template in the Problem Observation entry indicates the status of the diagnosis.
package_name: hl7.cda.us.ccda
derivation: constraint
name: EncounterDiagnosis
type: http://hl7.org/cda/stds/core/StructureDefinition/Act
elements:
  templateId:
    index: 0
    slicing:
      rules: open
      discriminator:
      - {path: root, type: value}
      - {path: extension, type: value}
      min: 1
      slices:
        encounter-dx:
          match: {root: 2.16.840.1.113883.10.20.22.4.80, extension: '2015-08-01'}
          schema:
            _required: true
            index: 1
            elements:
              root:
                pattern: {type: String, value: 2.16.840.1.113883.10.20.22.4.80}
                index: 2
              extension:
                pattern: {type: String, value: '2015-08-01'}
                index: 3
            required: [root, extension]
            extensions: {}
  classCode:
    pattern: {type: Code, value: ACT}
    index: 4
  moodCode:
    pattern: {type: Code, value: EVN}
    index: 5
  code:
    short: Diagnosis
    index: 6
    elements:
      code:
        pattern: {type: Code, value: 29308-4}
        index: 7
      codeSystem:
        short: LOINC
        pattern: {type: String, value: 2.16.840.1.113883.6.1}
        index: 8
    required: [codeSystem, code]
  text:
    short: SHOULD reference the portion of section narrative text corresponding to this entry
    index: 9
    elements:
      reference:
        constraint:
          value-starts-octothorpe: {human: 'If reference/@value is present, it SHALL begin with a ''#'' and SHALL point to its corresponding narrative', source: 'http://hl7.org/cda/us/ccda/StructureDefinition/EncounterDiagnosis', severity: error, expression: value.exists() implies value.startsWith('#')}
        index: 10
  statusCode:
    index: 11
    elements:
      code:
        pattern: {type: Code, value: completed}
        index: 12
    required: [code]
  entryRelationship:
    index: 13
    slicing:
      rules: open
      discriminator:
      - {path: observation, type: profile}
      - {path: typeCode, type: value}
      min: 1
      slices:
        problemObservation:
          match: {typeCode: SUBJ}
          schema:
            array: true
            min: 1
            _required: true
            index: 14
            elements:
              typeCode:
                pattern: {type: Code, value: SUBJ}
                index: 15
              observation: {type: 'http://hl7.org/cda/stds/core/StructureDefinition/Observation', index: 16}
            required: [observation]
package_version: 3.0.0-ballot
class: logical
kind: logical
url: http://hl7.org/cda/us/ccda/StructureDefinition/EncounterDiagnosis
base: http://hl7.org/cda/stds/core/StructureDefinition/Act
version: 3.0.0-ballot
required: [statusCode, templateId, entryRelationship]