O23.33
✓ Billable
Infections of other parts of urinary tract in pregnancy, third trimester
ICD-10-CM · FY2026 · Pregnancy, Childbirth and the Puerperium
Code
O23.33
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Pregnancy, Childbirth and the Puerperium
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code O23.33?
ICD-10-CM code O23.33 represents Infections of other parts of urinary tract in pregnancy, third trimester. It is a billable diagnosis code in the Pregnancy, Childbirth and the Puerperium chapter, effective October 1, 2025 – September 30, 2026.
Is O23.33 billable?
Yes. O23.33 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is O23.33 in?
O23.33 belongs to the Pregnancy, Childbirth and the Puerperium chapter (O00–O9A) of ICD-10-CM.
Related codes in the O23 category
O23
Infections of genitourinary tract in pregnancy
Non-billable
O23.0
Infections of kidney in pregnancy
Non-billable
O23.1
Infections of bladder in pregnancy
Non-billable
O23.2
Infections of urethra in pregnancy
Non-billable
O23.3
Infections of other parts of urinary tract in pregnancy
Non-billable
O23.4
Unspecified infection of urinary tract in pregnancy
Non-billable
O23.5
Infections of the genital tract in pregnancy
Non-billable
O23.9
Unspecified genitourinary tract infection in pregnancy
Non-billable
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