ICD-11 classes
21 Symptoms, signs or clinical findings, not elsewhere...
Symptoms, signs or clinical findings of the nervous system
Symptoms or signs involving the nervous system
MB4D — Headache, not elsewhere classified

ICD-11 MB4D — Headache, not elsewhere classified

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 described above.

The diagnosis includes nothing.

It has no clarifying diagnoses.

The diagnosis is coded elsewhere:

• Symptoms or signs involving the nervous system #8877