G26 Extrapyramidal and movement disorders in diseases classified elsewhere

Billable ICD-10-CM code, FY2026.

Code first

• underlying disease

Applies from G26 Extrapyramidal and movement disorders in diseases classified elsewhere

Code first

• underlying disease

MS-DRG index

Defines the logic of DRG(s) 056-057 in MDC 01.

Approximate ICD-9-CM (GEMs)

• 333.99 Other extrapyramidal diseases and abnormal movement disorders (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Manifestation codes as principal diagnosis: Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and are not allowed as principal diagnosis.

Code annotations containing back-references to G26

Back-references to G26

• Type 1 Excludes: R25 Abnormal involuntary movements ("specific movement disorders (G20-G26)")

Back-references to G26

• Type 1 Excludes: R25 Abnormal involuntary movements ("specific movement disorders (G20-G26)")

Nearby codes

• G26 Extrapyramidal and movement disorders in diseases classified elsewhere (this code)