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ICD-10-CM Diagnosis Code G44.1

Effective Date: 10/01/2015 To 09/30/2025

Vascular headache, not elsewhere classified

CMS-HCC-V24 CMS-HCC-V28 RxHCC Age Gender Maternity Acute or Chronic MCC
-- -- -- -- -- -- Acute No
Excludes-2 for G44.1:
  • 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-)

Back-references to G44.1
  • Headache R51.9
    • vascular NEC G44.1
    • Chapter, Section and Diagnosis Prefix for G44.1
        G00-G99 :

        Diseases of the nervous system

        G40-G47 :

        Episodic and paroxysmal disorders

        G44 :

        Other headache syndromes