MB4D

ICD-11 MMS 2026-01

Headache, not elsewhere classified

Description

Headache with characteristic features suggesting that it is a unique diagnostic entity, a finding or complaint, but not fulfilling criteria for any of the headache disorders classified elsewhere.

Index terms

  • Headache, not elsewhere classified
  • cephalalgia
  • cephalgia
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  • cephalodynia
  • headache, unspecified
  • pain in head NOS
  • Facial pain, not elsewhere classified
  • pain in face

Excludes

  • 8A85 – Atypical facial pain
  • 8B82.0 – Trigeminal neuralgia
  • MG30.6 – Chronic secondary headache or orofacial pain
  • MG31.1 – Acute headache, not elsewhere classified

Exclusions from above levels

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

Sibling codes

  • MB40 – Sensation disturbance
  • MB41 – Disturbances of smell or taste
  • MB42 – Phonophobia
  • MB43 – Dyssomnia
  • MB44 – Abnormalities of gait or mobility
  • MB45 – Lack of coordination
  • MB46 – Abnormal involuntary movements
  • MB47 – Abnormality of tonus or reflex
  • MB48 – Dizziness or giddiness
  • MB49 – Aura
  • MB4A – Apraxia
  • MB4B – Symbolic dysfunctions
  • MB4C – Gerstmann syndrome
  • MB60 – Sleeptalking
  • MB6Y – Other specified symptoms or signs involving the nervous system

Foundation entity

Headache, not elsewhere classified – http://id.who.int/icd/entity/1405405864

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