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ICD-10-CM 2027

ICD-10 code for uterus double

Q51.28

Other and unspecified doubling of uterus

✓ Billable / specificFemale only

From the official ICD-10-CM alphabetic index entry “Double › uterus”. Page updated September 29, 2026.

About coding uterus double

The ICD-10-CM code for uterus double is Q51.28 (Other and unspecified doubling of uterus). The official index lists 7 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on Q51.28.

Within Q51.2, choose Q51.28 (Other and unspecified doubling of uterus) only when documentation doesn't support a more specific option: complete doubling of uterus (Q51.21) and partial doubling of uterus (Q51.22).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC, relative weight 1.8456), DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC, relative weight 1.2974), DRG 760 (Menstrual and Other Female Reproductive System Disorders with CC/MCC, relative weight 1.0129) and DRG 761 (Menstrual and Other Female Reproductive System Disorders without CC/MCC, relative weight 0.7041), in MDC 13 (Diseases and Disorders of the Female Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

More specific uterus double codes (official index)

  • with
  • doubling of cervix (and vagina) Q51.10 — Doubling of uterus with doubling of cervix and vagina without obstruction
  • with obstruction Q51.11 — Doubling of uterus with doubling of cervix and vagina with obstruction
  • complete Q51.21 — Complete doubling of uterus
  • in pregnancy or childbirth O34.0 — Maternal care for congenital malformation of uterus
  • causing obstructed labor O65.5 — Obstructed labor due to abnormality of maternal pelvic organs
  • partial Q51.22 — Partial doubling of uterus
  • specified NEC Q51.28 — Other and unspecified doubling of uterus

Common questions about uterus double ICD-10 codes

What is the ICD-10 code for uterus double?

Q51.28 — Other and unspecified doubling of uterus. More specific codes apply when the documentation supports them: Q51.10, Q51.11, Q51.21, O34.0 and others below.

What is the ICD-10 code for complete uterus double?

Q51.21 — Complete doubling of uterus.

What is the ICD-10 code for partial uterus double?

Q51.22 — Partial doubling of uterus.

Is Q51.28 billable?

Yes. Q51.28 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Q51.28 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict Q51.28 as a principal diagnosis.

Is Q51.28 a CC or MCC?

No. Q51.28 is neither a CC nor an MCC under MS-DRG v44.0.