O23.1Header code — not billable
Infections of bladder in pregnancy
- Chapter
- 15. Pregnancy, childbirth and the puerperium
- Category
- O23
- Effective date
- October 1, 2026
Related codes in category O23
O23Infections of genitourinary tract in pregnancyO23.0Infections of kidney in pregnancyO23.00Infections of kidney in pregnancy, unspecified trimesterYesO23.01Infections of kidney in pregnancy, first trimesterYesO23.02Infections of kidney in pregnancy, second trimesterYesO23.03Infections of kidney in pregnancy, third trimesterYesO23.10Infections of bladder in pregnancy, unspecified trimesterYesO23.11Infections of bladder in pregnancy, first trimesterYesO23.12Infections of bladder in pregnancy, second trimesterYesO23.13Infections of bladder in pregnancy, third trimesterYesO23.2Infections of urethra in pregnancyO23.20Infections of urethra in pregnancy, unspecified trimesterYes
Frequently asked questions
What is ICD-10 code O23.1?
O23.1 is an ICD-10-CM diagnosis code for Infections of bladder in pregnancy.
Is O23.1 a billable code?
No. O23.1 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is O23.1 in?
O23.1 falls under Chapter 15: Pregnancy, childbirth and the puerperium.
When did O23.1 become effective?
O23.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to O23.1?
O23.1 belongs to category O23, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.