ICD-10 Code G44.221 – Chronic tension-type headache, intractable (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code G44.221 – Chronic tension-type headache, intractable
What it is
This code identifies a chronic tension-type headache that persists over time and is documented as intractable, meaning it is difficult to control or does not respond well to usual management. Use it only when the record clearly states this specific diagnosis.
Clinical signs
Typical features include a bilateral, pressing or tightening headache that is not usually worsened by routine activity. Clinical features vary; refer to documentation.
When to use this code
Use G44.221 when the provider documents chronic tension-type headache and specifically notes that it is intractable or refractory. Apply it for ongoing headache visits where the diagnosis is confirmed and the record supports chronicity. Check documentation if the note only says headache without type or severity.
Do not use for
Do not use this code for migraine, cluster headache, or unspecified headache types. Do not assign it if the chart does not clearly document both chronic tension-type headache and intractability.
Coding tip
Match the code to the exact provider wording; if intractable is not stated, use the more specific documented headache code instead.