I02.9 — Rheumatic chorea without heart involvement
I02.9 is a billable, specific ICD-10-CM code for rheumatic chorea without heart involvement. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Rheumatic chorea NOS
Risk adjustment
I02.9 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
I02.9 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56781Billing and Coding: Transthoracic Echocardiography (TTE)
- A57306Billing and Coding: Transthoracic Echocardiography (TTE)
- A57326Billing and Coding: Electrocardiograms
How I02.9 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I02.9.
- Chorea›minor
- Chorea›rheumatic(chronic)
- Chorea›Sydenham's
- Fever›rheumatic›with central nervous system involvement
- Chorea›with›heart involvement›rheumatic
Related codes at this level
Codes that share I02. If I02.9 is not quite right, the correct code is usually one of these.
Questions about I02.9
- Is I02.9 a billable ICD-10-CM code?
- Yes. I02.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I02.9 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Acute rheumatic fever (I00-I02).