Symptoms and signs involving the circulatory and respiratory systems

R00-R09

This section covers 73 ICD-10-CM codes (R00-R09) for symptoms and signs involving the circulatory and respiratory systems, including abnormalities of heart beat, cardiac murmurs and other cardiac sounds, and abnormal blood-pressure reading, without diagnosis. 58 of these are billable codes usable on a claim; the rest are non-billable header categories that require a more specific child code.