ICD-10-CM · Chapter 9 · I00–I99
I09.1
Rheumatic diseases of endocardium, valve unspecified
Diseases of the circulatory system
Quick facts
- Code
- I09.1
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 9 — Diseases of the circulatory system
- Category
- I09 — Other rheumatic heart diseases
- Specificity
- 4 characters
How coders use this code
ICD-10-CM I09.1 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of rheumatic diseases of endocardium, valve unspecified. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in I09
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