ICD-10-CM 2027 diagnosis code
Q51Congenital malformations of uterus and cervix
Q51 is a header code, so it can't be reported by itself. Choose one of the 10 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Q51
Q51 is the ICD-10-CM diagnosis code for congenital malformations of uterus and cervix. It belongs to block Q50-Q56 (congenital malformations of genital organs) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic disorders). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: Q51.0 (uterus), Q51.1 (vagina), Q51.2 (uterus), Q51.3 (uterus), Q51.4 (uterus), Q51.5 (cervix), Q51.6 (cervix), Q51.7 (tracts) and 2 more.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under Q51
- Q51.0Agenesis and aplasia of uterusBillable
- Q51.1Doubling of uterus with doubling of cervix and vagina
- Q51.2Other doubling of uterus
- Q51.3Bicornate uterusBillable
- Q51.4Unicornate uterusBillable
- Q51.5Agenesis and aplasia of cervixBillable
- Q51.6Embryonic cyst of cervixBillable
- Q51.7Congenital fistulae between uterus and digestive and urinary tractsBillable
- Q51.8Other congenital malformations of uterus and cervix
- Q51.9Congenital malformation of uterus and cervix, unspecifiedBillable
Notes that apply from higher levels
Instructions written at a parent level also apply to Q51.
Broader instructions also apply from Q50-Q56 Congenital malformations of genital organs and Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about Q51
Is Q51 billable?
- No. Q51 is a header code. Report one of its more specific subcodes instead.