ICD-10-CM 2027
ICD-10 code for pulmonary valve heart obstruction
From the official ICD-10-CM alphabetic index entry “Obstruction, obstructed, obstructive › pulmonary valve (heart)”. Page updated September 29, 2026.
About coding pulmonary valve heart obstruction
The ICD-10-CM code for pulmonary valve heart obstruction is I37.0 (Nonrheumatic pulmonary valve stenosis).
Within I37 (nonrheumatic pulmonary valve disorders), I37.0 is specifically for nonrheumatic pulmonary valve stenosis. Related codes cover nonrheumatic pulmonary valve insufficiency (I37.1), nonrheumatic pulmonary valve stenosis with insufficiency (I37.2), other nonrheumatic pulmonary valve disorders (I37.8) and nonrheumatic pulmonary valve disorder, unspecified (I37.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 306 (Cardiac Congenital and Valvular Disorders with MCC, relative weight 1.546) and DRG 307 (Cardiac Congenital and Valvular Disorders without MCC, relative weight 0.9148), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about pulmonary valve heart obstruction ICD-10 codes
What is the ICD-10 code for pulmonary valve heart obstruction?
- I37.0 — Nonrheumatic pulmonary valve stenosis.
Is I37.0 billable?
- Yes. I37.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I37.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I37.0 as a principal diagnosis.
Is I37.0 a CC or MCC?
- No. I37.0 is neither a CC nor an MCC under MS-DRG v44.0.