I01.9 ICD-10-CM Code: Acute rheumatic heart disease, unspecified
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
I01.9Acute rheumatic heart disease, unspecified
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where I01.9 sits
- 1
Chapter 9
Diseases of the circulatory system (I00-I99)
- 2
Section
Acute rheumatic fever (I00-I02)
- 3
Category I01
Rheumatic fever with heart involvement
- 4
Code I01.9
Acute rheumatic heart disease, unspecified
Documentation details
Notes for this code
Inclusion terms
- Any condition in I00 with unspecified type of heart involvement
- Rheumatic carditis, acute
- Rheumatic heart disease, active or acute
Code first
No “code first” instruction is listed for I01.9.
Use additional code
No “use additional code” instruction is listed for I01.9.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for I01.9.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for I01.9.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code I01.9 mean?
I01.9 is the FY 2027 U.S. ICD-10-CM code for “Acute rheumatic heart disease, unspecified.”
Is I01.9 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, I01.9 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is I01.9 located in ICD-10-CM?
I01.9 is listed in Chapter 9, Diseases of the circulatory system (I00-I99), within Acute rheumatic fever (I00-I02) (I00–I02), under category I01, Rheumatic fever with heart involvement.
What coding notes are listed for I01.9?
Its listed inclusion terms are Any condition in I00 with unspecified type of heart involvement; Rheumatic carditis, acute; Rheumatic heart disease, active or acute. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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