MCMedicalCodingSoftware
G44.40

G44.40: Drug-induced headache, not elsewhere classified, not intractable

Billable / specific codeICD-10-CM

G44.40 is a billable, specific ICD-10-CM code for drug-induced headache, not elsewhere classified, not intractable. It is valid for submission on a claim.

Check G44.40 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above G44.40

A category’s note binds every code beneath it.

Written on G44: Other headache syndromes

Excludes2 inherited from the categories above G44.40

Not part of this code, but both may be coded when both are present.

Written on G44: Other headache syndromes

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

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

G44.40 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56612Billing and Coding: CT of the Head

Alphabetic index entries that lead here

  • Headache›drug-induced NEC
  • Headache›medication overuse
  • Headache›rebound
  • Headache›drug-induced NEC›not intractable
  • Headache›medication overuse›not intractable
  • Headache›rebound›not intractable

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under G44.4

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.