R01.0 Benign and innocent cardiac murmurs

Billable ICD-10-CM code, FY2026.

Applicable to

• Functional cardiac murmur

Applies from R01 Cardiac murmurs and other cardiac sounds

Excludes1 (never code together)

• cardiac murmurs and sounds originating in the perinatal period (P29.8)

MS-DRG index

Defines the logic of DRG(s) 306-307 in MDC 05.

Approximate ICD-9-CM (GEMs)

• 785.2 Undiagnosed cardiac murmurs (approximate)

Diagnosis Index entries for R01.0

• Murmur (cardiac) (heart) (organic) › benign
• Murmur (cardiac) (heart) (organic) › functional
• Murmur (cardiac) (heart) (organic) › innocent
• Murmur (cardiac) (heart) (organic) › nonorganic

Nearby codes

• R01 Cardiac murmurs and other cardiac sounds
• R01.0 Benign and innocent cardiac murmurs (this code)
• R01.1 Cardiac murmur, unspecified
• R01.2 Other cardiac sounds