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ICD-10-CM tabular list

Q80-Q89Other congenital malformations

ICD-10-CM codes Q80-Q89 cover other congenital malformations, within congenital malformations, deformations and chromosomal abnormalities. The block holds 98 codes across 9 categories, of which 81 are billable and 17 are header codes that cannot be submitted on a claim.

Risk adjustment in Q80-Q89

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 23 Prostate, Breast, and Other Cancers and Tumors

What else to watch in Q80-Q89

  • 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 Q80-Q89

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