I01.9
Billable
ChapterI00–I99
Ranksubcategory
Official Description
Acute rheumatic heart disease, unspecified
Metadata & Insights
- •2026 ICD-10-CM Edition - Effective October 1, 2025.
- •Billable/specific code (valid for reimbursement).
- •Chapter 9: Diseases of the Circulatory System (I00-I99).
Instructional Notes
Includes
- Rheumatic carditis, acute
- Rheumatic heart disease, active or acute
General instructions are available for the parent sections:
Clinical Hierarchy
Applicable Ancestor Context
The following parent sections contain instructions or notes that apply to I01.9:
Alphabetic Index Mentions
These are Diagnosis Index lookup paths that route to I01.9. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.
5 raw paths
Bouillaud's disease or syndrome (rheumatic heart disease)1 unique routes
Disease, diseased3 unique routes
Syndrome1 unique routes
MS-DRG Classification
This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:
Cross Reference
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