O23.93
BillableUnspecified genitourinary tract infection in pregnancy, third trimester
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is O23.93 an HCC code?
No. O23.93 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
O23.93 is the ICD-10-CM diagnosis code for unspecified genitourinary tract infection in pregnancy, third trimester. An infection of the urinary or reproductive tract that occurs during the final three months of pregnancy (weeks 27 through delivery). O23.93 sits in the ICD-10-CM chapter for pregnancy, childbirth and the puerperium (o00-o9a), within the section covering other maternal disorders predominantly related to pregnancy (o20-o29).
O23.93 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Third trimester extends from week 27 through delivery; infections near delivery may require urgent treatment.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O23.93 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Third trimester extends from week 27 through delivery; infections near delivery may require urgent treatment
- •Document whether infection affects labor management or delivery method