G44.1

ICD-10Billable

Vascular headache, not elsewhere classified

Official ICD-10-CM descriptor (FY2026)

Vascular headache, not elsewhere classified

G44.1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Excludes2

Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.

  • cluster headache (G44.0)
  • complicated headache syndromes (G44.5-)
  • drug-induced headache (G44.4-)
  • migraine (G43.-)
  • other specified headache syndromes (G44.8-)
  • post-traumatic headache (G44.3-)
  • tension-type headache (G44.2-)

Related codes in G44

Where this code sits

Parent code
G44

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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