O23
Infections of genitourinary tract in pregnancy
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 12 never code together
O23code
Excludes2
- gonococcal infections complicating pregnancy, childbirth and the puerperium (O98.2)O98.2O98.2O98.2
- infections with a predominantly sexual mode of transmission NOS complicating pregnancy, childbirth and the puerperium (O98.3)O98.3O98.3O98.3
- syphilis complicating pregnancy, childbirth and the puerperium (O98.1)O98.1O98.1O98.1
- tuberculosis of genitourinary system complicating pregnancy, childbirth and the puerperium (O98.0)O98.0O98.0O98.0
- venereal disease NOS complicating pregnancy, childbirth and the puerperium (O98.3)O98.3O98.3O98.3
O20-O29block
O00-O9Achapter
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 8
O00-O9Achapter
Notes
- CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
- Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
- Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
- 1st trimester- less than 14 weeks 0 days
- 2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
- 3rd trimester- 28 weeks 0 days until delivery
Use additional code
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.Z3A
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 7
O23.0 Infections of kidney in pregnancy O23.1 Infections of bladder in pregnancy O23.2 Infections of urethra in pregnancy O23.3 Infections of other parts of urinary tract in pregnancy O23.4 Unspecified infection of urinary tract in pregnancy O23.5 Infections of the genital tract in pregnancy O23.9 Unspecified genitourinary tract infection in pregnancy
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.