O23.90 is the authoritative medical code for Unspecified genitourinary tract infection in pregnancy, unspecified trimester. This classification is used in medical billing and clinical recording to specify the clinical criteria for unspecified genitourinary tract infection in pregnancy, unspecified trimester (ICD-10-CM O23.90), 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
Unspecified genitourinary tract infection in pregnancy, unspecified trimester is a billable ICD-10-CM diagnosis code O23.90. 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 O23.90 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 O23.90 be reported alongside related conditions?
Per Excludes2 instructions, O23.90 and the following may both be reported 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).
Is an additional code needed with O23.90?
Use additional code(s) to specify: code to identify organism (B95.-, B96.-).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as O23.90, 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
- O23.13 — Infections of bladder in pregnancy, third trimester
- O23.2 — Infections of urethra in pregnancy
- O23.20 — Infections of urethra in pregnancy, unspecified trimester
- O23.21 — Infections of urethra in pregnancy, first trimester
- O23.22 — Infections of urethra in pregnancy, second trimester
- O23.23 — Infections of urethra in pregnancy, third trimester
- O23.3 — Infections of other parts of urinary tract in pregnancy
- O23.30 — Infections of other parts of urinary tract in pregnancy, unspecified trimester
- O23.31 — Infections of other parts of urinary tract in pregnancy, first trimester
- O23.32 — Infections of other parts of urinary tract in pregnancy, second trimester
- O23.33 — Infections of other parts of urinary tract in pregnancy, third trimester
- O23.4 — Unspecified infection of urinary tract in pregnancy
- O23.40 — Unspecified infection of urinary tract in pregnancy, unspecified trimester
- O23.41 — Unspecified infection of urinary tract in pregnancy, first trimester
- O23.42 — Unspecified infection of urinary tract in pregnancy, second trimester
- O23.43 — Unspecified infection of urinary tract in pregnancy, third trimester
- O23.5 — Infections of the genital tract in pregnancy
- O23.51 — Infection of cervix in pregnancy
- O23.511 — Infections of cervix in pregnancy, first trimester
- O23.512 — Infections of cervix in pregnancy, second trimester
- O23.513 — Infections of cervix in pregnancy, third trimester
- O23.519 — Infections of cervix in pregnancy, unspecified trimester
- O23.52 — Salpingo-oophoritis in pregnancy
- O23.521 — Salpingo-oophoritis in pregnancy, first trimester
- O23.522 — Salpingo-oophoritis in pregnancy, second trimester
- O23.523 — Salpingo-oophoritis in pregnancy, third trimester
- O23.529 — Salpingo-oophoritis in pregnancy, unspecified trimester
- O23.59 — Infection of other part of genital tract in pregnancy
- O23.591 — Infection of other part of genital tract in pregnancy, first trimester
- O23.592 — Infection of other part of genital tract in pregnancy, second trimester
- O23.593 — Infection of other part of genital tract in pregnancy, third trimester
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code O22.90
Venous complication in pregnancy, unspecified, unspecified trimester
ICD Code O26.90
Pregnancy related conditions, unspecified, unspecified trimester