2026 ICD-10-CM Diagnosis Code R01Cardiac murmurs and other cardiac sounds

ICD-10-CM Codes›R00–R99›R00-R09›R01

ICD-10-CM R01
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

R01 is a non-billable ICD-10-CM category code for cardiac murmurs and other cardiac sounds, so it cannot be submitted on claims. Use a more specific code from this category instead, such as R01.0, R01.1, and R01.2. As a symptom code, it should not be used as a principal diagnosis once a related definitive diagnosis has been established.

Code Identity

ICD-10-CM Code
R01
Billable Status
No — Non-Billable Category
Code Describes
Cardiac murmurs and other cardiac sounds
Short Description
Cardiac murmurs and other cardiac sounds
Same as the full description in the CMS dataset.
Chapter
R00-R09
Symptoms and signs involving the circulatory and respiratory systems

Code Classification

ChapterR00–R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
SectionR00-R09Symptoms and signs involving the circulatory and respiratory systems
CategoryR01Cardiac murmurs and other cardiac sounds
This CodeR01Cardiac murmurs and other cardiac sounds

Specific Coding for Cardiac murmurs and other cardiac soundsOverview

Non-specific codes like R01 require more characters. Use one of these billable codes instead:

  • Use R01.0 for Benign and innocent cardiac murmurs

  • Use R01.1 for Cardiac murmur, unspecified

  • Use R01.2 for Other cardiac sounds

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

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

Patient EducationClinical

Congenital Heart Defects

Congenital heart defects (CHDs) are problems with the structure of the heart. "Congenital" means that that the problems are present at birth. These defects happen when a fetus's heart doesn't develop normally during pregnancy. Congenital heart defects are the most common type of birth defect.

The full article covers:

  • What are congenital heart defects?
  • What causes congenital heart defects?
  • Who is more likely to have a baby with a congenital heart defect?
  • What are the symptoms of congenital heart defects?
  • What other problems do congenital heart defects cause?
  • How are congenital heart defects diagnosed?
  • What are the treatments for congenital heart defects?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About R01Overview

Is R01 (Cardiac murmurs and other cardiac sounds) a billable code?

No. This is a category header that groups the codes for cardiac murmurs and other cardiac sounds, and headers cannot be submitted on claims. Claims for cardiac murmurs and other cardiac sounds need a more specific code from this category, such as R01.0, R01.1, and R01.2.

Can R01 be a principal diagnosis?

Use it with care. This is a symptom code, so once a definitive diagnosis explaining the cardiac murmurs and other cardiac sounds is established, that condition takes the principal position instead.