ICD-10-CM 2027
ICD-10 code for cervix agenesis
From the official ICD-10-CM alphabetic index entry “Agenesis › cervix”. Page updated September 29, 2026.
About coding cervix agenesis
The ICD-10-CM code for cervix agenesis is Q51.5 (Agenesis and aplasia of cervix).
Within Q51 (congenital malformations of uterus and cervix), Q51.5 is specifically for agenesis and aplasia of cervix. Related codes cover agenesis and aplasia of uterus (Q51.0), doubling of uterus with doubling of cervix and vagina (Q51.1), other doubling of uterus (Q51.2), Bicornate uterus (Q51.3), Unicornate uterus (Q51.4), Embryonic cyst of cervix (Q51.6), congenital fistulae between uterus and digestive and urinary tracts (Q51.7), other congenital malformations of uterus and cervix (Q51.8) and 1 more.
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.
Common questions about cervix agenesis ICD-10 codes
What is the ICD-10 code for cervix agenesis?
- Q51.5 — Agenesis and aplasia of cervix.
Is Q51.5 billable?
- Yes. Q51.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q51.5 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q51.5 as a principal diagnosis.
Is Q51.5 a CC or MCC?
- No. Q51.5 is neither a CC nor an MCC under MS-DRG v44.0.