O23.13 is the authoritative medical code for Infections of bladder in pregnancy, third trimester. This classification is used in medical billing and clinical recording to specify the clinical criteria for infections of bladder in pregnancy, third trimester (ICD-10-CM O23.13), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Infections of bladder in pregnancy, third trimester is a billable ICD-10-CM diagnosis code O23.13. 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; maternal care related to the fetus and amniotic cavity and possible delivery problems O30-O48; maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium O98-O99. Use additional code: code to identify organism (B95.-, B96.-).
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for O23.13 in the official ICD-10-CM tabular list.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are 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
- maternal care related to the fetus and amniotic cavity and possible delivery problems O30-O48
- maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium O98-O99
Use Additional Code
Supplementary codes the tabular list directs you to add.
- code to identify organism (B95.-, B96.-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Can O23.13 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, O23.13 and the following are not considered part of each other and may both be reported when both conditions are 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).
Is an additional code needed with O23.13?
Use additional code(s) to specify: code to identify organism (B95.-, B96.-).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to O23.13 in its code family, with their registry titles.
- O23 — Infections of genitourinary tract in pregnancy
- O23.0 — Infections of kidney in pregnancy
- O23.01 — Infections of kidney in pregnancy, first trimester
- O23.02 — Infections of kidney in pregnancy, second trimester
- O23.03 — Infections of kidney in pregnancy, third trimester
- O23.1 — Infections of bladder in pregnancy
- O23.10 — Infections of bladder in pregnancy, unspecified trimester
- O23.11 — Infections of bladder in pregnancy, first trimester
- O23.12 — Infections of bladder in pregnancy, second trimester
- O23.2 — Infections of urethra in pregnancy
View all 40 codes in the O23 family