Rheumatic chorea (I02) ICD-10-CM
The I02 code range covers rheumatic chorea with 3 ICD-10-CM diagnosis codes. 2 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- Sydenham's chorea
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the I02 Range 3 codes · 2 billable
About the I02 Code Range
The ICD-10 code I02 and its subcodes specifically identify cases of rheumatic chorea, a neurological disorder linked to rheumatic fever. The codes distinguish between symptoms with and without heart involvement.
The code I02.0 is used when rheumatic chorea affects the heart, often referred to by synonyms such as "autoimmune movement disorder," "carditis due to rheumatic fever," or "chorea due to immunological disorder." This code is crucial in documenting cases where rheumatic fever causes both movement problems and inflammation of the heart (endocarditis). Conversely, I02.9 applies to rheumatic chorea without heart complications. It covers terms like "secondary tic disorder" and focuses on movement disorders following an infectious cause but without cardiac involvement. Using these precise codes helps clinicians and coders capture the specific presentation of rheumatic chorea, whether or not it includes cardiac disease.
Questions About This Page
How many billable codes are in the I02 range?
Of the 3 codes in this range, 2 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the I02 range classify?
The range classifies rheumatic chorea. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
