U.S. ICD-10-CM · FY 2027

O23 ICD-10-CM Code: Infections of genitourinary tract in pregnancy

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

O23

Infections of genitourinary tract in pregnancy

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where O23 sits

  1. 1

    Chapter 15

    Pregnancy, childbirth and the puerperium (O00-O9A)

  2. 2

    Section

    Other maternal disorders predominantly related to pregnancy (O20-O29)

  3. 3

    Category O23

    Infections of genitourinary tract in pregnancy

  4. 4

    Code O23

    Infections of genitourinary tract in pregnancy

More specific choices

Codes under O23

O23 is a non-billable category. Choose the child code that best matches the documented diagnosis.

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

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for O23.

Code first

No “code first” instruction is listed for O23.

Use additional code

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

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for O23.

Excludes2

Conditions not included here that may be reported separately when present.

  • 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)

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code O23 mean?

O23 is the FY 2027 U.S. ICD-10-CM code for “Infections of genitourinary tract in pregnancy.”

Is O23 a billable or specific ICD-10-CM code?

No. O23 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is O23 located in ICD-10-CM?

O23 is listed in Chapter 15, Pregnancy, childbirth and the puerperium (O00-O9A), within Other maternal disorders predominantly related to pregnancy (O20-O29) (O20–O29), under category O23, Infections of genitourinary tract in pregnancy.

What coding notes are listed for O23?

No inclusion terms are listed for O23 in this reference record. No code-first instruction is listed. Additional-code instructions: code to identify organism (B95.-, B96.-). No Excludes1 note is listed. Excludes2 notes: 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).

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