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ICD-10-CM tabular list

R00-R09Symptoms and signs involving the circulatory and respiratory systems

ICD-10-CM codes R00-R09 cover symptoms and signs involving the circulatory and respiratory systems, within symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified. The block holds 73 codes across 8 categories, of which 58 are billable and 15 are header codes that cannot be submitted on a claim.

Risk adjustment in R00-R09

0 codes in this block map to a CMS-HCC, which means the diagnosis carries a risk-adjustment payment when it is documented and coded. Under-coding here is money left on the table; over-coding here is what audits are for.

  • HCC 212 Respiratory Arrest

What else to watch in R00-R09

  • 56 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.

Categories in R00-R09

ICD-10-CMFY2026-Apr· effective April 1, 2026