type: object
required:
  - icpc
  - start
  - mut
properties:
  icpc:
    description: |-
      The ICPC1.1 (NL variant) code describing this problem / chronic condition.
      
      Guaranteed to be formatted as `X01.00`, _or_ blank (for HIS systems that allow registering problems / conditions without an ICPC).
      
      Note that certain ICPC1.1 codes are generally stated without the subcode, for example, `B73` (Leukemia). Nevertheless these are
      returned by this API as `B73.00`.
    type: string
    pattern: '^[A-Z]\d{2}\.\d{2}$'
    example: A97.00
  start:
    description: |-
      This problem / episode / chronic condition was opened on this date, usually because it was diagnosed on this date.
      
      Always provided, but may contain the sentinel value of `1900-01-01` if the source doesn't have a start date. Generally
      such episodes are to be treated as having always been part of the patient's dossier.
    type: string
    format: date
    example: 1900-01-01
  end:
    description: |-
      *OPTIONAL* If the episode has been determined to no longer be relevant (for example, cured), the date when the episode was closed.
    type: string
    format: date
    example: "2022-12-31"
  mut:
    description: |-
      The last time an event (for example, seeing the patient for chronic care related to this episode) was recorded in context of
      this episode. Is guaranteed to be present and will never be earlier than `start`.
    type: string
    format: date
    example: "2022-10-20"
  description:
    description: |-
      *OPTIONAL* Most HIS source systems default the 'description' of an episode to the standard description for the provided ICPC, but allow the
      practicioner to change this description.
    type: string
    example: "Geboorte dochter"