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ICD-10-CM Current in FY 2027

G44.1

Vascular headache, not elsewhere classified

Release
FY 2027
Effective

Hierarchy

Where G44.1 sits in the official hierarchy. Each level is the code it is classified under.

  1. G44 Parent Other headache syndromes
  2. G44.1 This code Vascular headache, not elsewhere classified

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Excludes1

headache NOS ( R51.9 )

Inherited from G44 — Other headache syndromes

Excludes2

cluster headache ( G44.0 )

Excludes2

complicated headache syndromes ( G44.5- )

Excludes2

atypical facial pain ( G50.1 )

Inherited from G44 — Other headache syndromes

Excludes2

drug-induced headache ( G44.4- )

Excludes2

headache due to lumbar puncture ( G97.1 )

Inherited from G44 — Other headache syndromes

Excludes2

migraine ( G43 .-)

Excludes2

migraines ( G43 .-)

Inherited from G44 — Other headache syndromes

Excludes2

other specified headache syndromes ( G44.8- )

Excludes2

trigeminal neuralgia ( G50.0 )

Inherited from G44 — Other headache syndromes

Excludes2

post-traumatic headache ( G44.3- )

Excludes2

tension-type headache ( G44.2- )

Version History

How G44.1 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Vascular headache, not elsewhere classified

  2. FY 2026 Effective

    Unchanged

    Vascular headache, not elsewhere classified

Other codes under G44

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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