ICD-10 · PDGM grouping
Q51 Congenital malformations of uterus and cervix
All 18 codes in the Q51 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
18
Can lead a claim
17
Cannot lead a claim
1
What CMS assigns to Q51
17 of the 18 codes group to MMTA - Other; 1 is assigned no clinical group. None of the 18 is assigned a comorbidity subgroup. 17 of the 18 can lead a claim.
Every code in Q51
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| Q51.0 | Agenesis and aplasia of uterus | Can lead a claim | A | None |
| Q51.1 Doubling of uterus with doubling of cervix and vagina | ||||
| Q51.10 | Doubling of uterus with doubling of cervix and vagina without obstructionCMS: Doubling of uterus w doubling of cervix and vagina w/o obst | Can lead a claim | A | None |
| Q51.11 | Doubling of uterus with doubling of cervix and vagina with obstructionCMS: Doubling of uterus w doubling of cervix and vagina w obst | Can lead a claim | A | None |
| Q51.2 Other doubling of uterus | ||||
| Q51.21 | Complete doubling of uterus | Can lead a claim | A | None |
| Q51.22 | Partial doubling of uterus | Can lead a claim | A | None |
| Q51.28 | Other and unspecified doubling of uterus | Can lead a claim | A | None |
| Q51.3 | Bicornate uterus | Can lead a claim | A | None |
| Q51.4 | Unicornate uterus | Can lead a claim | A | None |
| Q51.5 | Agenesis and aplasia of cervix | Can lead a claim | A | None |
| Q51.6 | Embryonic cyst of cervix | Can lead a claim | A | None |
| Q51.7 | Congenital fistulae between uterus and digestive and urinary tractsCMS: Congen fistulae betw uterus and digestive and urinary tracts | Can lead a claim | A | None |
| Q51.8 Other congenital malformations of uterus and cervix | ||||
| Q51.81 Other congenital malformations of uterus | ||||
| Q51.810 | Arcuate uterus | Can lead a claim | A | None |
| Q51.811 | Hypoplasia of uterus | Can lead a claim | A | None |
| Q51.818 | Other congenital malformations of uterus | Can lead a claim | A | None |
| Q51.82 Other congenital malformations of cervix | ||||
| Q51.820 | Cervical duplication | Can lead a claim | A | None |
| Q51.821 | Hypoplasia of cervix | Can lead a claim | A | None |
| Q51.828 | Other congenital malformations of cervix | Can lead a claim | A | None |
| Q51.9 | Congenital malformation of uterus and cervix, unspecified | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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