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Q83.9

Q83.9: Congenital malformation of breast, unspecified

Billable / specific codeICD-10-CMPOA exemptunspecified

Q83.9 is a billable, specific ICD-10-CM code for congenital malformation of breast, unspecified. It is valid for submission on a claim.

Check Q83.9 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above Q83.9

Not part of this code, but both may be coded when both are present.

Written on Q83: Congenital malformations of breast

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Anomaly, anomalous›breast
  • Anomaly, anomalous›nipple
  • Deformity›nipple(congenital)
  • Malformation›breast
  • Deformity›breast›congenital

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under Q83

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.