O23
ICD-10Non-billable categoryInfections of genitourinary tract in pregnancy
Official ICD-10-CM descriptor (FY2026)
Infections of genitourinary tract in pregnancy
O23 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- gonococcal infections complicating pregnancy, childbirth and the puerperium (O98.2)
- infections with a predominantly sexual mode of transmission NOS complicating pregnancy, childbirth and the puerperium (O98.3)
- syphilis complicating pregnancy, childbirth and the puerperium (O98.1)
- tuberculosis of genitourinary system complicating pregnancy, childbirth and the puerperium (O98.0)
- venereal disease NOS complicating pregnancy, childbirth and the puerperium (O98.3)
Use additional code
Report an additional code to identify the associated condition.
- code to identify organism (B95.-, B96.-)
More specific codes under O23
- O23.0Infections of kidney in pregnancycategory
- O23.1Infections of bladder in pregnancycategory
- O23.2Infections of urethra in pregnancycategory
- O23.3Infections of other parts of urinary tract in pregnancycategory
- O23.4Unspecified infection of urinary tract in pregnancycategory
- O23.5Infections of the genital tract in pregnancycategory
- O23.9Unspecified genitourinary tract infection in pregnancycategory
Where this code sits
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.