ICD-10-CM 2027
ICD-10 code for Graham Steell murmur
From the official ICD-10-CM alphabetic index entry “Murmur (cardiac) (heart) (organic) › Graham Steell”. Page updated September 29, 2026.
About coding Graham Steell murmur
The ICD-10-CM code for Graham Steell murmur is I37.1 (Nonrheumatic pulmonary valve insufficiency).
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.
Common questions about Graham Steell murmur ICD-10 codes
What is the ICD-10 code for Graham Steell murmur?
- I37.1 — Nonrheumatic pulmonary valve insufficiency.
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.