Cardiac murmurs and other cardiac sounds (R01) ICD-10-CM
The R01 code range covers cardiac murmurs and other cardiac sounds with 4 ICD-10-CM diagnosis codes. 3 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- cardiac murmurs and sounds originating in the perinatal period P29.8
Codes in the R01 Range 4 codes · 3 billable
About the R01 Code Range
The ICD-10 code R01 covers various cardiac murmurs and other cardiac sounds that are detected during clinical examinations of the heart. These codes help specify whether the heart sound is benign, unspecified, or an unusual sound distinct from typical murmurs.
Specifically, R01.0 is used for benign and innocent cardiac murmurs, often known as functional heart murmur, neonatal innocent cardiac murmur, or venous hum. These murmurs are generally harmless and commonly found in children or healthy individuals. The ICD-10 code for benign murmurs assists healthcare providers in distinguishing normal heart sounds from those that might suggest disease. The code R01.1 addresses unspecified cardiac murmurs, which include a wide range of murmurs described by their pitch, quality, timing, and intensity, such as aortic ejection murmur or mitral pansystolic murmur. This category is useful when the murmur is noted but lacks clear classification as benign or pathological. Lastly, R01.2 pertains to other abnormal cardiac sounds like split heart sounds, gallop rhythm, or prosthetic valve sounds. These unique heart sounds can indicate changes in cardiac function or structural issues and require careful documentation using this code. Together, these ICD-10 codes provide precise identifiers for specific heart sound findings, aiding both clinical assessment and accurate medical coding.
Questions About This Page
How many billable codes are in the R01 range?
Of the 4 codes in this range, 3 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the R01 range classify?
The range classifies cardiac murmurs and other cardiac sounds. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
