O23

Non-billable

Infections of genitourinary tract in pregnancy

O23 is the ICD-10-CM code for Infections of genitourinary tract in pregnancy. It is a non-billable category code — use a more specific child code such as O23.0 for billing.

Status
Header (non-billable)
Chapter
O00-O9A
Subcodes
7
Edition
FY2026

O00-O9A Pregnancy, childbirth and the puerperium

What this means — in plain language

MedlinePlus · NIH

How can infections affect your pregnancy? During pregnancy , some common infections such as the common cold or a skin infection do not usually cause serious problems. Some infections, such as the flu , can be more severe when you're pregnant. But other infections can be harmful to you, your fetus, or both. Certain infections during pregnancy may lead to or cause complications or health problems for your fetus, such…

Read more about Infections and Pregnancy at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Excludes2 — not included here

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

Use additional code

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

Frequently asked questions

What is ICD-10 code O23?
O23 is the ICD-10-CM code for "Infections of genitourinary tract in pregnancy". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
Is O23 a billable code?
No — O23 is a non-billable header code. Use a more specific child code (such as O23.0) for billing.
What are the subcodes of O23?
O23 has 7 more specific child codes, including O23.0, O23.1, O23.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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