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 2026. 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
The ICD-10 codes R00-R09 classify symptoms and signs related to the circulatory and respiratory systems, covering issues like abnormal heartbeats, blood pressure irregularities, respiratory bleeding, cough, breathing abnormalities, and chest pain. These codes help specify conditions ranging from tachycardia and bradycardia to various respiratory symptoms like dyspnea, hemoptysis, and pleurisy.
This range includes codes for abnormalities of heartbeat (R00), including tachycardia ("sinus tachycardia," "abnormal pulse rate") and bradycardia, enabling precise coding of different pulse irregularities. Cardiac murmurs and sounds (R01) cover benign and unspecified murmurs, as well as other abnormal heart sounds. Codes for blood pressure abnormalities (R03) differentiate elevated or low readings without a hypertension diagnosis. Respiratory hemorrhages such as epistaxis (nosebleeds), hemoptysis (coughing blood), and other bleeding sites are encoded within R04. The R05 category distinguishes acute, subacute, and chronic cough types, including cough syncope. Abnormal breathing codes (R06) cover dyspnea, orthopnea, wheezing, snoring, apnea, and other breathing irregularities, aiding in documenting respiratory distress and sleep-related breathing disorders. Chest pain codes (R07) describe pain localized to throat, chest with breathing, precordial region, and pleurodynia. Additional symptoms and signs (R09) include asphyxia, hypoxemia, pleurisy, respiratory arrest, abnormal sputum, nasal congestion, and foreign body sensations affecting these systems. This chapter supports detailed coding for diverse circulatory and respiratory symptoms crucial in clinical assessment and reporting.
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 2026. 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 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
