Q51.21 — Complete doubling of uterus
Is Q51.21 billable?
Yes — Q51.21 is billable for FY2027. Q51.21 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. Q51.21 may be submitted for encounters from October 1, 2026 through September 30, 2027.
Q51.21 at a glance
| Code | Q51.21 |
|---|---|
| Description | Complete doubling of uterus |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does Q51.21 group to?
Q51.21 sits in MDC 13 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 742Uterine and Adnexa Procedures for Non-Malignancy with CC/MCCsurgical
- 743Uterine and Adnexa Procedures for Non-Malignancy without CC/MCCsurgical
How is Q51.21 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to Q51.21. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Double › uterus › complete
- Septum, septate › uterus › complete (congenital)
Inclusion terms
Alternative wording in documentation that is classified to Q51.21.
- Complete septate uterus
Excludes1 — never code together — inherited from Q50-Q56
The conditions below can never be reported together with Q51.21 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 17
The conditions below are not part of Q51.21, but a patient may have both at the same time. When documentation supports it, Q51.21 and the excluded code may both be reported.
- inborn errors of metabolism (E70-E88)
How long has Q51.21 existed?
Q51.21 first appears in FY2019.
- FY2021Other complete doubling of uterusComplete doubling of uterus
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.