Is I09.8 a billable ICD-10 code?

No. I09.8 is a non-billable header code. Use a more specific subcategory for claims.

I09.8 ⚠ Non-billable

Other specified rheumatic heart diseases

Q: What is ICD-10 code I09.8?

ICD-10-CM code I09.8 stands for "Other specified rheumatic heart diseases". It is a non-billable header code in the Diseases of the Circulatory System chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Diseases of the Circulatory System

Code

I09.8

System

ICD-10-CM

Billable

No — use specific code

Effective

FY2026

Chapter

Diseases of the Circulatory System

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code I09.8?

ICD-10-CM code I09.8 represents Other specified rheumatic heart diseases. It is a non-billable header code requiring a more specific subcategory in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.

Is I09.8 billable?

No. I09.8 is a non-billable header. Select a more specific subcategory for claims submission.

What chapter is I09.8 in?

I09.8 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.

Related codes in the I09 category

I09 Other rheumatic heart diseases Non-billable I09.0 Rheumatic myocarditis Billable I09.1 Rheumatic diseases of endocardium, valve unspecified Billable I09.2 Chronic rheumatic pericarditis Billable I09.9 Rheumatic heart disease, unspecified Billable I09.81 Rheumatic heart failure Billable I09.89 Other specified rheumatic heart diseases Billable

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