Get started free

I01

Non-billable

Rheumatic fever with heart involvement

I01 is the ICD-10-CM code for Rheumatic fever with heart involvement. It is a non-billable category code — use a more specific child code such as I01.0 for billing.

Status
Header (non-billable)
Chapter
I00-I99
Subcodes
5
Edition
FY2026

I00-I99 Diseases of the circulatory system

Excludes1 — not coded here

  • •chronic diseases of rheumatic origin (I05-I09) unless rheumatic fever is also present or there is evidence of reactivation or activity of the rheumatic process.

Frequently asked questions

What is ICD-10 code I01?
I01 is the ICD-10-CM code for "Rheumatic fever with heart involvement". It falls under I00-I99 Diseases of the circulatory system.
Is I01 a billable code?
No — I01 is a non-billable header code. Use a more specific child code (such as I01.0) for billing.
What are the subcodes of I01?
I01 has 5 more specific child codes, including I01.0, I01.1, I01.2.
What is excluded from I01?
Excludes1 (not coded here): chronic diseases of rheumatic origin (I05-I09) unless rheumatic fever is also present or there is evidence of reactivation or activity of the rheumatic process..

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.

Get started freeSee how Eleplan works →