Nonrheumatic pulmonary valve disorders (I37) ICD-10-CM
The I37 code range covers nonrheumatic pulmonary valve disorders with 6 ICD-10-CM diagnosis codes. 5 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
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 I37 Range 6 codes · 5 billable
- I37 Nonrheumatic pulmonary valve disordersNon-billable
- I37.0 Nonrheumatic pulmonary valve stenosis
- I37.1 Nonrheumatic pulmonary valve insufficiency
- I37.2 Nonrheumatic pulmonary valve stenosis with insufficiency
- I37.8 Other nonrheumatic pulmonary valve disorders
- I37.9 Nonrheumatic pulmonary valve disorder, unspecified
About the I37 Code Range
ICD-10 code I37 and its subcategories address nonrheumatic pulmonary valve disorders, which involve problems with the pulmonary valve of the heart not caused by rheumatic fever. These codes help specify diagnoses like narrowed valves, valve leakage, or combined issues affecting the pulmonary valve.
These codes are used to document conditions such as pulmonary valve stenosis (narrowing of the valve), called by terms like "pulmonary stenosis" or "pulmonic valve stenosis," and classified under I37.0. When the valve leaks or doesn't close properly, known as pulmonary valve insufficiency or "pulmonary regurgitation," the appropriate code is I37.1. Cases with both narrowing and leakage fall under I37.2. Other less common or complex valve problems, including valve prolapse, abscesses, thrombosis, calcification, or prosthetic valve failures, are categorized under I37.8. Finally, when the specific nonrheumatic pulmonary valve issue is not detailed, coders use I37.9 for an unspecified disorder. These distinctions help medical coders and healthcare providers accurately capture diagnoses associated with pulmonary valve abnormalities in clinical records and billing.
Questions About This Page
How many billable codes are in the I37 range?
Of the 6 codes in this range, 5 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the I37 range classify?
The range classifies nonrheumatic pulmonary 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 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
