Endocarditis, valve unspecified (I38) ICD-10-CM
The I38 code range covers endocarditis, valve unspecified with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- endocarditis (chronic) NOS
- valvular incompetence NOS
- valvular insufficiency NOS
- valvular regurgitation NOS
- valvular stenosis NOS
- valvulitis (chronic) NOS
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the I38 Range 1 codes · 1 billable
- I38 Endocarditis, valve unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the I38 range.
Endocarditis
Inflammation of the inner lining of the heart (ENDOCARDIUM), the continuous membrane lining the four chambers and HEART VALVES. It is often caused by microorganisms including bacteria, viruses, fungi, and rickettsiae. Left untreated, endocarditis can damage heart valves and become life-threatening.
About the I38 Code Range
Endocarditis is inflammation of the heart’s inner lining, a continuous membrane that lines its four chambers and valves. I38 identifies endocarditis without specifying a valve. The category sits within other forms of heart disease in the circulatory system chapter.
Questions About This Page
How many billable codes are in the I38 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the I38 range classify?
The range classifies endocarditis, valve unspecified. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
