Is O23 a billable code?
No. O23 is a header code that groups 36 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
O23: Infections of genitourinary tract in pregnancy
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
O23 groups related diagnoses under infections of genitourinary tract in pregnancy. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under O23
- O23.00Infections of kidney in pregnancy, unspecified trimester
- O23.01Infections of kidney in pregnancy, first trimester
- O23.02Infections of kidney in pregnancy, second trimester
- O23.03Infections of kidney in pregnancy, third trimester
- O23.10Infections of bladder in pregnancy, unspecified trimester
- O23.11Infections of bladder in pregnancy, first trimester
- O23.12Infections of bladder in pregnancy, second trimester
- O23.13Infections of bladder in pregnancy, third trimester
- O23.20Infections of urethra in pregnancy, unspecified trimester
- O23.21Infections of urethra in pregnancy, first trimester
- O23.22Infections of urethra in pregnancy, second trimester
- O23.23Infections of urethra in pregnancy, third trimester
- O23.30Infections of other parts of urinary tract in pregnancy, unspecified trimester
- O23.31Infections of other parts of urinary tract in pregnancy, first trimester
- O23.32Infections of other parts of urinary tract in pregnancy, second trimester
- O23.33Infections of other parts of urinary tract in pregnancy, third trimester
- O23.40Unspecified infection of urinary tract in pregnancy, unspecified trimester
- O23.41Unspecified infection of urinary tract in pregnancy, first trimester
- O23.42Unspecified infection of urinary tract in pregnancy, second trimester
- O23.43Unspecified infection of urinary tract in pregnancy, third trimester
- O23.511Infections of cervix in pregnancy, first trimester
- O23.512Infections of cervix in pregnancy, second trimester
- O23.513Infections of cervix in pregnancy, third trimester
- O23.519Infections of cervix in pregnancy, unspecified trimester
- O23.521Salpingo-oophoritis in pregnancy, first trimester
- O23.522Salpingo-oophoritis in pregnancy, second trimester
- O23.523Salpingo-oophoritis in pregnancy, third trimester
- O23.529Salpingo-oophoritis in pregnancy, unspecified trimester
- O23.591Infection of other part of genital tract in pregnancy, first trimester
- O23.592Infection of other part of genital tract in pregnancy, second trimester
- O23.593Infection of other part of genital tract in pregnancy, third trimester
- O23.599Infection of other part of genital tract in pregnancy, unspecified trimester
- O23.90Unspecified genitourinary tract infection in pregnancy, unspecified trimester
- O23.91Unspecified genitourinary tract infection in pregnancy, first trimester
- O23.92Unspecified genitourinary tract infection in pregnancy, second trimester
- O23.93Unspecified genitourinary tract infection in pregnancy, third trimester
O23 questions
What does O23 mean?
O23 is the ICD-10-CM code for Infections of genitourinary tract in pregnancy. It is in chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.