ICD-11 classes
21 Symptoms, signs or clinical findings, not elsewhere...
General symptoms, signs or clinical findings
General symptoms
Pain
MG30 — Chronic pain
MG30.0 — Chronic primary pain
MG30.03 — Chronic primary headache or orofacial pain
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:

• Tension-type headache #6966