Q51.4 Unicornate uterus

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applicable to

• Unicornate uterus with or without a separate uterine horn
• Uterus with only one functioning horn

MS-DRG index

Defines the logic of DRG(s) 742-743 in MDC 13.

Approximate ICD-9-CM (GEMs)

• 752.33 Unicornuate uterus

Diagnosis Index entries for Q51.4

• Anomaly, anomalous (congenital) (unspecified type) › uterus › with only one functioning horn
• Unicornate uterus

Nearby codes

• Q51.2 Other doubling of uterus
• Q51.21 Complete doubling of uterus
• Q51.22 Partial doubling of uterus
• Q51.28 Other and unspecified doubling of uterus
• Q51.3 Bicornate uterus
• Q51.4 Unicornate uterus (this code)
• Q51.5 Agenesis and aplasia of cervix
• Q51.6 Embryonic cyst of cervix
• Q51.7 Congenital fistulae between uterus and digestive and urinary tracts
• Q51.8 Other congenital malformations of uterus and cervix
• Q51.81 Other congenital malformations of uterus