G26 — Extrapyramidal and movement disorders in diseases classified elsewhere
G26 is a billable, specific ICD-10-CM code for extrapyramidal and movement disorders in diseases classified elsewhere. It is valid for submission on a claim.
Code first
The underlying condition must be sequenced before this code.
- underlying disease
Other codes that can never be billed with G26
These codes carry an Excludes1 note pointing at G26. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading G26 alone.
- R25Abnormal involuntary movements
Risk adjustment
G26 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
G26 is named in 15 Medicare coverage policies — 15 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
- A56416Billing and Coding: Assays for Vitamins and Metabolic Function
- A56612Billing and Coding: CT of the Head
Questions about G26
- Is G26 a billable ICD-10-CM code?
- Yes. G26 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does G26 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Extrapyramidal and movement disorders (G20-G26).