Nonrheumatic aortic valve disorders (I35) ICD-10-CM
The I35 code range covers nonrheumatic aortic valve disorders with 6 ICD-10-CM diagnosis codes. 5 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
- , if applicable, bicuspid aortic valve Q23.81
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the I35 Range 6 codes · 5 billable
- I35 Nonrheumatic aortic valve disordersNon-billable
- I35.0 Nonrheumatic aortic (valve) stenosis
- I35.1 Nonrheumatic aortic (valve) insufficiency
- I35.2 Nonrheumatic aortic (valve) stenosis with insufficiency
- I35.8 Other nonrheumatic aortic valve disorders
- I35.9 Nonrheumatic aortic valve disorder, unspecified
About the I35 Code Range
Nonrheumatic aortic valve problems can involve narrowing, leakage, or both.
Within I35, I35.0 identifies narrowing, called stenosis. I35.1 identifies leakage, called insufficiency, and I35.2 identifies both. I35.8 describes other nonrheumatic aortic valve disorders; I35.9 leaves the disorder unspecified.
Questions About This Page
How many billable codes are in the I35 range?
Of the 6 codes in this range, 5 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 I35 range classify?
The range classifies nonrheumatic aortic valve disorders. 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.
