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G44

⚠ Non-billable (Header)

Other headache syndromes

Diseases of the nervous system (G00-G99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

direct

Cannot be coded with G44

  • • headache NOS (R51.9)

⚠️ Excludes2

direct

May be coded together if both conditions coexist

  • • atypical facial pain (G50.1)
  • • headache due to lumbar puncture (G97.1)
  • • migraines (G43.-)
  • • trigeminal neuralgia (G50.0)

Child Codes (7)

G44.0Cluster headaches and other trigeminal autonomic cephalgias (TAC)G44.1Vascular headache, not elsewhere classifiedG44.2Tension-type headacheG44.3Post-traumatic headacheG44.4Drug-induced headache, not elsewhere classifiedG44.5Complicated headache syndromesG44.8Other specified headache syndromes

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Code Information

CodeG44
BillableNo — Header code
CategoryDiseases of the nervous system (G00-G99)
Excludes11 rule(s)
Excludes24 note(s)
Child codes7

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)