Symptoms and signs involving the circulatory and respiratory systems
73 codes in this section
About Section R00-R09
Section R00-R09 (R00-R09) covers symptoms and signs involving the circulatory and respiratory systems. It sits within the Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified chapter (R00-R99). This section contains 73 ICD-10-CM codes, 58 billable diagnoses you can submit on a claim, and 15 non-billable header codes used to organize the hierarchy.
Codes are organized below by 3-character root. Click the root to see all subcodes underneath it, or click any individual code for full coverage data, payer policies, and linked CPT procedures.
Codes in R00-R09
Grouped by 3-character root code. Click any code for full detail.
| R00.0 | Tachycardia, unspecified | Billable |
| R00.1 | Bradycardia, unspecified | Billable |
| R00.2 | Palpitations | Billable |
| R00.8 | Other abnormalities of heart beat | Billable |
| R00.9 | Unspecified abnormalities of heart beat | Billable |
| R01.0 | Benign and innocent cardiac murmurs | Billable |
| R01.1 | Cardiac murmur, unspecified | Billable |
| R01.2 | Other cardiac sounds | Billable |
| R03.0 | Elevated blood-pressure reading, without diagnosis of hypertension | Billable |
| R03.1 | Nonspecific low blood-pressure reading | Billable |
| R04.0 | Epistaxis | Billable |
| R04.1 | Hemorrhage from throat | Billable |
| R04.2 | Hemoptysis | Billable |
| R04.8 | Hemorrhage from other sites in respiratory passages | Header |
| R04.81 | Acute idiopathic pulmonary hemorrhage in infants | Billable |
| R04.89 | Hemorrhage from other sites in respiratory passages | Billable |
| R04.9 | Hemorrhage from respiratory passages, unspecified | Billable |
| R05.1 | Acute cough | Billable |
| R05.2 | Subacute cough | Billable |
| R05.3 | Chronic cough | Billable |
| R05.4 | Cough syncope | Billable |
| R05.8 | Other specified cough | Billable |
| R05.9 | Cough, unspecified | Billable |
| R06.0 | Dyspnea | Header |
| R06.00 | Dyspnea, unspecified | Billable |
| R06.01 | Orthopnea | Billable |
| R06.02 | Shortness of breath | Billable |
| R06.03 | Acute respiratory distress | Billable |
| R06.09 | Other forms of dyspnea | Billable |
| R06.1 | Stridor | Billable |
| R06.2 | Wheezing | Billable |
| R06.3 | Periodic breathing | Billable |
| R06.4 | Hyperventilation | Billable |
| R06.5 | Mouth breathing | Billable |
| R06.6 | Hiccough | Billable |
| R06.7 | Sneezing | Billable |
| R06.8 | Other abnormalities of breathing | Header |
| R06.81 | Apnea, not elsewhere classified | Billable |
| R06.82 | Tachypnea, not elsewhere classified | Billable |
| R06.83 | Snoring | Billable |
| R06.89 | Other abnormalities of breathing | Billable |
| R06.9 | Unspecified abnormalities of breathing | Billable |
| R07.0 | Pain in throat | Billable |
| R07.1 | Chest pain on breathing | Billable |
| R07.2 | Precordial pain | Billable |
| R07.8 | Other chest pain | Header |
| R07.81 | Pleurodynia | Billable |
| R07.82 | Intercostal pain | Billable |
| R07.89 | Other chest pain | Billable |
| R07.9 | Chest pain, unspecified | Billable |
| R09.0 | Asphyxia and hypoxemia | Header |
| R09.01 | Asphyxia | Billable |
| R09.02 | Hypoxemia | Billable |
| R09.1 | Pleurisy | Billable |
| R09.2 | Respiratory arrest | Billable |
| R09.3 | Abnormal sputum | Billable |
| R09.8 | Other specified symptoms and signs involving the circulatory and respiratory systems | Header |
| R09.81 | Nasal congestion | Billable |
| R09.82 | Postnasal drip | Billable |
| R09.89 | Other specified symptoms and signs involving the circulatory and respiratory systems | Billable |
| R09.A | Foreign body sensation of the circulatory and respiratory system | Header |
| R09.A0 | Foreign body sensation, unspecified | Billable |
| R09.A1 | Foreign body sensation, nose | Billable |
| R09.A2 | Foreign body sensation, throat | Billable |
| R09.A9 | Foreign body sensation, other site | Billable |
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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