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