Coding and coverage · ICD-10-CM

Q51 Congenital malformations of uterus and cervix

Not billable (header)Chapter 17

Report one of the more specific codes below.

Check coverage with this diagnosis

Codes under this one

  • Q51.0 Agenesis and aplasia of uterus
  • Q51.1 Doubling of uterus with doubling of cervix and vaginaHeader
  • Q51.2 Other doubling of uterusHeader
  • Q51.3 Bicornate uterus
  • Q51.4 Unicornate uterus
  • Q51.5 Agenesis and aplasia of cervix
  • Q51.6 Embryonic cyst of cervix
  • Q51.7 Congenital fistulae between uterus and digestive and urinary tracts
  • Q51.8 Other congenital malformations of uterus and cervixHeader
  • Q51.9 Congenital malformation of uterus and cervix, unspecified

Instructional notes

Chapter 17

Excludes2Not included here: the patient may have both; report both when both are present.
  • inborn errors of metabolism (E70-E88)
Notes
  • Codes from this chapter are not for use on maternal records

Section Q50-Q56

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • androgen insensitivity syndrome (E34.5-)
  • syndromes associated with anomalies in the number and form of chromosomes (Q90-Q99)

Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1) · Q50-Q56 Congenital malformations of genital organs (Q50-Q56)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.