O23.90

Unspecified genitourinary tract infection in pregnancy, unspecified trimester

Billable FY2026 2025-10-01 → 2026-09-30

This is the unspecified option. 3 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.

Exclusions 12 never code together

O23code

Excludes2

gonococcal infections complicating pregnancy, childbirth and the puerperium (O98.2)O98.2
infections with a predominantly sexual mode of transmission NOS complicating pregnancy, childbirth and the puerperium (O98.3)O98.3
syphilis complicating pregnancy, childbirth and the puerperium (O98.1)O98.1
tuberculosis of genitourinary system complicating pregnancy, childbirth and the puerperium (O98.0)O98.0
venereal disease NOS complicating pregnancy, childbirth and the puerperium (O98.3)O98.3

O20-O29block

Excludes2

maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)O30-O48
maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)O98-O99

O00-O9Achapter

Excludes1

supervision of normal pregnancy (Z34.-)Z34.-

Excludes2

mental and behavioral disorders associated with the puerperium (F53.-)F53.-
obstetrical tetanus (A34)A34
postpartum necrosis of pituitary gland (E23.0)E23.0
puerperal osteomalacia (M83.0)M83.0

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 9

O23code

Use additional code

code to identify organism (B95.-, B96.-)B95.-B96.-

O23.9code

Inclusion terms

Genitourinary tract infection in pregnancy NOS

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 1

Pregnancy (single) (uterine) Z33.1
- complicated by (care of) (management affected by)
  - abscess or cellulitis
    - genital organ or tract O23.9
  - genital tract infection O23.9
  - infection (s) O98.91
    - genital organ or tract O23.9
    - genitourinary tract O23.9

Alongside this code 3 same parent — O23.9

O23.91 Unsp GU tract infection in pregnancy, first trimester O23.92 Unsp GU tract infection in pregnancy, second trimester O23.93 Unsp GU tract infection in pregnancy, third trimester

Medications 1

9 Pregnancy Trimester, First drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: yes
Code set: FY2026
Parent: O23.9
Block: O20-O29
Siblings: 3

Present FY2024–FY2027.