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G44.001

Billable

Cluster headache syndrome, unspecified, intractable

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

What This Code Means

Severe, recurring headaches that occur in clusters (grouped episodes) and do not respond adequately to standard treatment, with unspecified pattern.

Coding Tips

  • •Document the cluster pattern, including frequency and duration of cluster periods
  • •Intractability requires evidence of failed treatment attempts; differentiate from episodic vs. chronic patterns

Code Hierarchy

└G44Other headache syndromes└G44.0Cluster headaches and other trigeminal autonomic cephalgias (TAC)└G44.00Cluster headache syndrome, unspecified└G44.001Cluster headache syndrome, unspecified, intractable
└G44.001Cluster headache syndrome, unspecified, intractable

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