Q83Non-billableSave

Q83 - Congenital malformations of breast

ICD-10-CM Chapter 17: Congenital malformations, deformations and chromosomal abnormalities · Q80-Q89 Other congenital malformations (Q80-Q89) · Top-level category · FY2027

Coding Guidance

Q83 is a non-billable heading. Report one of the 6 more specific codes below.

Includes, Excludes and Coding Notes

Excludes 2 — Not Included HereFrom Q83

Not part of this code; report both codes when the patient has both conditions.

  • absence of pectoral muscle (Q79.8)
  • hypoplasia of breast (N64.82)
  • micromastia (N64.82)
Excludes 2 — Not Included HereFrom Chapter Q00-Q99

Not part of this code; report both codes when the patient has both conditions.

  • inborn errors of metabolism (E70-E88)
NotesFrom Chapter Q00-Q99

Instructional notes from the ICD-10-CM tabular list.

  • Codes from this chapter are not for use on maternal records

Documentation requirements, coding pitfalls and FAQs for conditions coded with Q83.