ICD-10-CM 2027
ICD-10 code for progressive chorea
From the official ICD-10-CM alphabetic index entry “Chorea (chronic) (gravis) (posthemiplegic) (senile) (spasmodic) › progressive”. Page updated September 29, 2026.
About coding progressive chorea
The ICD-10-CM code for progressive chorea is G25.5 (Other chorea). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on G25.5.
Within G25, choose G25.5 (Other chorea) only when documentation doesn't support a more specific option: essential tremor (G25.0), drug-induced tremor (G25.1), other specified forms of tremor (G25.2), myoclonus (G25.3), drug-induced chorea (G25.4), drug induced tics and other tics of organic origin (G25.6), other and unspecified drug induced movement disorders (G25.7), other specified extrapyramidal and movement disorders (G25.8) and 1 more.
Don't report G25.5 together with the conditions in its Excludes1 note: chorea NOS with heart involvement (I02.0), Huntington's chorea (G10), rheumatic chorea (I02.-) and Sydenham's chorea (I02.-).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific progressive chorea codes (official index)
- hereditary G10 — Huntington's disease
Don't confuse with (Excludes1 for G25.5)
Common questions about progressive chorea ICD-10 codes
What is the ICD-10 code for progressive chorea?
- G25.5 — Other chorea. More specific codes apply when the documentation supports them: G10.
What is the ICD-10 code for hereditary progressive chorea?
- G10 — Huntington's disease.
Is G25.5 billable?
- Yes. G25.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can G25.5 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict G25.5 as a principal diagnosis.
Is G25.5 a CC or MCC?
- No. G25.5 is neither a CC nor an MCC under MS-DRG v44.0.