ICD-10-CM 2027
ICD-10 code for benign murmur
From the official ICD-10-CM alphabetic index entry “Murmur (cardiac) (heart) (organic) › benign”. Page updated September 29, 2026.
About coding benign murmur
The ICD-10-CM code for benign murmur is R01.0 (Benign and innocent cardiac murmurs).
Within R01 (cardiac murmurs and other cardiac sounds), R01.0 is specifically for benign and innocent cardiac murmurs. Related codes cover cardiac murmur, unspecified (R01.1) and other cardiac sounds (R01.2).
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 benign murmur ICD-10 codes
What is the ICD-10 code for benign murmur?
- R01.0 — Benign and innocent cardiac murmurs.
Is R01.0 billable?
- Yes. R01.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R01.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R01.0 as a principal diagnosis.
Is R01.0 a CC or MCC?
- No. R01.0 is neither a CC nor an MCC under MS-DRG v44.0.