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ICD-10-CM · FY 2026 APRIL UPDATE

O23

Infections of genitourinary tract in pregnancy

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
O23.0Infections of kidney in pregnancyCategory
O23.00Infections of kidney in pregnancy, unspecified trimesterBillable
O23.01Infections of kidney in pregnancy, first trimesterBillable
O23.02Infections of kidney in pregnancy, second trimesterBillable
O23.03Infections of kidney in pregnancy, third trimesterBillable
O23.1Infections of bladder in pregnancyCategory
O23.10Infections of bladder in pregnancy, unspecified trimesterBillable
O23.11Infections of bladder in pregnancy, first trimesterBillable
O23.12Infections of bladder in pregnancy, second trimesterBillable
O23.13Infections of bladder in pregnancy, third trimesterBillable
O23.2Infections of urethra in pregnancyCategory
O23.20Infections of urethra in pregnancy, unspecified trimesterBillable
O23.21Infections of urethra in pregnancy, first trimesterBillable
O23.22Infections of urethra in pregnancy, second trimesterBillable
O23.23Infections of urethra in pregnancy, third trimesterBillable
O23.3Infections of other parts of urinary tract in pregnancyCategory
O23.30Infections of other parts of urinary tract in pregnancy, unspecified trimesterBillable
O23.31Infections of other parts of urinary tract in pregnancy, first trimesterBillable
O23.32Infections of other parts of urinary tract in pregnancy, second trimesterBillable
O23.33Infections of other parts of urinary tract in pregnancy, third trimesterBillable
O23.4Unspecified infection of urinary tract in pregnancyCategory
O23.40Unspecified infection of urinary tract in pregnancy, unspecified trimesterBillable
O23.41Unspecified infection of urinary tract in pregnancy, first trimesterBillable
O23.42Unspecified infection of urinary tract in pregnancy, second trimesterBillable
O23.43Unspecified infection of urinary tract in pregnancy, third trimesterBillable
O23.5Infections of the genital tract in pregnancyCategory
O23.51Infection of cervix in pregnancyCategory
O23.511Infections of cervix in pregnancy, first trimesterBillable
O23.512Infections of cervix in pregnancy, second trimesterBillable
O23.513Infections of cervix in pregnancy, third trimesterBillable

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This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

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ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.