ICD-11 classes
08 Diseases of the nervous system
Headache disorders
8A81 — Tension-type headache
8A81.2 — Chronic tension-type headache
ICD-11 8A81.2 — Chronic tension-type headache
A disorder evolving from frequent episodic tension-type headache, with daily or very frequent episodes of headache, typically bilateral, pressing or tightening in quality and of mild to moderate intensity, lasting hours to days, or unremitting. The pain does not worsen with routine physical activity, but may be associated with mild nausea, photophobia or phonophobia.
The diagnosis includes nothing.
The diagnosis excludes nothing.
It has no clarifying diagnoses.
The diagnosis is coded elsewhere: