ICD-10-CM > R00-R99 > R00-R09 > R01 R01 Cardiac murmurs and other cardiac sounds Non-Billable/Non-Specific Type 1 Excludes cardiac murmurs and sounds originating in the perinatal period (P29.8) Codes R01.0Benign and innocent cardiac murmursR01.1Cardiac murmur, unspecifiedR01.2Other cardiac sounds