I38
✓ Billable
Endocarditis, valve unspecified
ICD-10-CM · FY2026 · Diseases of the Circulatory System
Code
I38
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Circulatory System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Official coding notes
From CMS's ICD-10-CM Tabular List.
Includes
- endocarditis (chronic) NOS
- valvular incompetence NOS
- valvular insufficiency NOS
- valvular regurgitation NOS
- valvular stenosis NOS
- valvulitis (chronic) NOS
Excludes1 — never code together
- congenital insufficiency of cardiac valve NOS (Q24.8)
- congenital stenosis of cardiac valve NOS (Q24.8)
- endocardial fibroelastosis (I42.4)
- endocarditis specified as rheumatic (I09.1)
Frequently asked questions
What is ICD-10 code I38?
ICD-10-CM code I38 represents Endocarditis, valve unspecified. It is a billable diagnosis code in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.
Is I38 billable?
Yes. I38 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is I38 in?
I38 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.
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