ICD-10-CM 2027
ICD-10 code for pulmonary valve heart incompetency
From the official ICD-10-CM alphabetic index entry “Incompetency, incompetent, incompetence › pulmonary valve (heart)”. Page updated September 29, 2026.
About coding pulmonary valve heart incompetency
The ICD-10-CM code for pulmonary valve heart incompetency is I37.1 (Nonrheumatic pulmonary valve insufficiency). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on I37.1.
Within I37 (nonrheumatic pulmonary valve disorders), I37.1 is specifically for nonrheumatic pulmonary valve insufficiency. Related codes cover nonrheumatic pulmonary valve stenosis (I37.0), 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.
More specific pulmonary valve heart incompetency codes (official index)
- congenital Q22.3 — Other congenital malformations of pulmonary valve
Common questions about pulmonary valve heart incompetency ICD-10 codes
What is the ICD-10 code for pulmonary valve heart incompetency?
- I37.1 — Nonrheumatic pulmonary valve insufficiency. More specific codes apply when the documentation supports them: Q22.3.
What is the ICD-10 code for congenital pulmonary valve heart incompetency?
- Q22.3 — Other congenital malformations of pulmonary valve.
Is I37.1 billable?
- Yes. I37.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I37.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I37.1 as a principal diagnosis.
Is I37.1 a CC or MCC?
- No. I37.1 is neither a CC nor an MCC under MS-DRG v44.0.