Symptoms and signs involving the circulatory and respiratory systems (R00-R09) ICD-10-CM
The R00–R09 section covers symptoms and signs involving the circulatory and respiratory systems with 73 ICD-10-CM diagnosis codes, of which 58 are billable in fiscal year 2027. The section is organized into the 8 code ranges listed below.
Code Ranges in This Section 8 ranges · 73 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the R00–R09 Code Range
These symptoms and signs involve the heart, blood pressure, breathing passages, throat, and chest. They include heartbeat changes, cough, bleeding, and pain.
R00 separates fast or slow heartbeats, awareness of the heartbeat, and other heartbeat abnormalities. R01 covers heart murmurs and other heart sounds. R03 distinguishes elevated blood pressure without a hypertension diagnosis from a nonspecific low reading.
R04 sorts bleeding from breathing passages by site. R05 distinguishes cough by duration and also includes fainting associated with cough. R06 separates breathing changes such as wheezing, mouth breathing, and sneezing. R07 separates throat pain from types of chest pain. R09 includes other signs, such as abnormal sputum and the feeling of a foreign body.
Questions About This Page
How many codes are in the R00-R09 range?
The R00-R09 range contains 73 ICD-10-CM diagnosis codes in FY 2027. 58 of them are billable, and the rest are category headers that organize the section.
What conditions does R00-R09 cover?
The range covers symptoms and signs involving the circulatory and respiratory systems. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
