ICD-10-CM category
I00: Rheumatic fever without heart involvement
I00 is “Rheumatic fever without heart involvement”. It has no subcodes in this category.
Frequently asked questions
What is ICD-10-CM code I00?
I00 is the ICD-10-CM code for Rheumatic fever without heart involvement.
Is I00 billable?
Yes — I00 is a valid, billable ICD-10-CM code (it has no further subdivisions).
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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