MC21

ICD-11 MMS 2026-01

Impairment of electrophysiological functions

Exclusions from above levels

  • 19 – Certain conditions originating in the perinatal period
  • JA66 – Clinical findings on antenatal screening of mother

Child codes

  • MC21.0 – Profound impairment of electrooculogram
  • MC21.1 – Normal electroretinogram
  • MC21.Y – Other specified impairment of electrophysiological functions
  • MC21.Z – Impairment of electrophysiological functions, unspecified

Sibling codes

  • MC20 – Clinical findings of the visual system
  • MC2Y – Other specified symptoms, signs or clinical findings of the visual system

Foundation entity

Impairment of electrophysiological functions – http://id.who.int/icd/entity/893837861

Part of: 21: Symptoms, signs or clinical findings, not elsewhere classified