Skip to content
HCC Buddy home

G44.021

Billable

Chronic cluster headache, intractable

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A severe, recurring headache condition characterized by clusters of intense pain around one eye or temple that occurs regularly and does not respond well to treatment.

Coding Tips

  • •The 'intractable' designation (5th character 1) indicates the condition is resistant to treatment; ensure clinical documentation supports this resistant status
  • •Cluster headaches are primary headache disorders; do not code as secondary to another condition unless specifically documented

Code Hierarchy

└G44Other headache syndromes└G44.0Cluster headaches and other trigeminal autonomic cephalgias (TAC)└G44.02Chronic cluster headache└G44.021Chronic cluster headache, intractable
└G44.021Chronic cluster headache, intractable

Open G44.021 in the Interactive Encoder

See full code details, AI coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial — no credit card required.

Open in EncoderStart 14-Day Pro Trial