Q51.11 Doubling of uterus with doubling of cervix and vagina with obstruction

ICD-10-CM Code Q51.11: Doubling of uterus with doubling of cervix and vagina with obstruction

ICD-10-CM code Q51.11 identifies a congenital abnormality involving the doubling of the uterus, cervix, and vagina accompanied by an obstruction. It is a billable, specific diagnosis code within the chapter for congenital malformations. This reference aggregates public source data to explain the code's classification, documentation parameters, and operational context. 4 5

Plain-language overview

Code Q51.11 is named Doubling of uterus with doubling of cervix and vagina with obstruction, and the source classifies this concept semantically as a congenital abnormality. 4 5

What this code represents

Q51.11 is presented as a billable and specific code with no child codes, meaning it is used at its own level of specificity rather than being broken down into more detailed subcategories. 5

Coding details

This code falls under subcategory Q51.1 for doubling of uterus with doubling of cervix and vagina, within category Q51 for congenital malformations of uterus and cervix, and within the Q50-Q56 range for congenital malformations of genital organs. 5

The reference data for Q51.11 lists no inclusion terms, no code first instruction, and no use additional code instruction. The source also names a related non-obstructed variant, Doubling of uterus with doubling of cervix and vagina without obstruction. 5

Documentation considerations

Medical imaging can evaluate the presence and size of the uterus, the morphology of the vagina, possible obstructions, and the continuity of the vagina with the uterus. 1

Coverage and utilization context

A Centers for Medicare and Medicaid Services document lists Q5111 with an effective date of 2024-04-01 and includes an R designation, while a separate reference provides the full descriptive label for Q51.11. 2 5

What the sources add

The National Cancer Institute EVS Explore source establishes the semantic type and preferred name for Q51.11, whereas the Vero source adds the structural ICD-10-CM hierarchy and the absence of additional coding instructions. 4 5

The CMS source provides an effective date and an R designation for Q5111, while the Vero source specifies the full code description for Q51.11 and its placement in the Congenital malformations chapter. 2 5

Sources

1. Ultrasonographic and multimodal imaging of pediatric genital female diseases — pmc.ncbi.nlm.nih.gov; accessed 2026-07-25.
2. instruction to your Medicare Administrative Contractor (PDF) — cms.gov; accessed 2026-07-25.
3. Transmittal — cms.gov; accessed 2026-07-25.
4. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-25.
5. ICD-10-CM Code Q51.11 | Vero — veroscribe.com; accessed 2026-07-25.