MCMedicalCodingSoftware
G94

G94: Other disorders of brain in diseases classified elsewhere

Billable / specific codeICD-10-CM

G94 is a billable, specific ICD-10-CM code for other disorders of brain in diseases classified elsewhere. It is valid for submission on a claim.

Check G94 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • encephalopathy in congenital syphilis (A50.49)
  • encephalopathy in influenza (J09.X9, J10.81, J11.81)
  • encephalopathy in syphilis (A52.19)
  • hydrocephalus in diseases classified elsewhere (G91.4)

Code first

The underlying condition must be sequenced before this code.

  • underlying disease

Risk adjustment

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

Medicare coverage

G94 is named in 4 Medicare coverage policies: 4 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
  • A56612Billing and Coding: CT of the Head
  • A57204Billing and Coding: MRI and CT Scans of the Head and Neck
  • A57780Billing and Coding: Psychological and Neuropsychological Tests

Code history

Unchanged in every release from FY2024 to FY2027.

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.