ICD-10-CM > G00-G99 > G20-G26 > G25 > G25.5 G25.5 Other chorea Billable/Specific Copy Code Copy Description Applicable To Chorea NOS Type 1 Excludes chorea NOS with heart involvement (I02.0)Huntington's chorea (G10)rheumatic chorea (I02.-)Sydenham's chorea (I02.-)