I09 – Other rheumatic heart diseases
ICD-10-CM 2027 diagnosis code · Chronic rheumatic heart diseases
ICD-10-CM code
I09
- Code
I09(claims format:I09)- Description
- Other rheumatic heart diseases
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 9. Diseases of the circulatory system (I00-I99)
- Block
- I05-I09 Chronic rheumatic heart diseases
Billable codes under I09
I09 is a header code and cannot be used on claims. Choose the most specific code:
- I09.0 – Rheumatic myocarditisBillable
- I09.1 – Rheumatic diseases of endocardium, valve unspecifiedBillable
- I09.2 – Chronic rheumatic pericarditisBillable
- I09.8 – Other specified rheumatic heart diseasesHeader (more codes below)
- I09.9 – Rheumatic heart disease, unspecifiedBillable
Frequently asked questions
What is ICD-10 code I09?
I09 is the ICD-10-CM code for other rheumatic heart diseases, in the block I05-I09 (Chronic rheumatic heart diseases).
Is I09 a billable code?
No. I09 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.