MCMedicalCodingSoftware
O23.1

O23.1: Infections of bladder in pregnancy

Non-billable headerICD-10-CM

O23.1 is a non-billable header ICD-10-CM code for infections of bladder in pregnancy. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 inherited from the categories above O23.1

Not part of this code, but both may be coded when both are present.

Written on O23: Infections of genitourinary tract in pregnancy

  • 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)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead O23.1

4 child codes. Green means billable.

Other codes under O23

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.