ICD-10-CM category
O23: Infections of genitourinary tract in pregnancy
Codes under O23 (Infections of genitourinary tract in pregnancy). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| O23.0 | Infections of kidney in pregnancy | — |
| O23.0 | Infections of kidney in pregnancy | — |
| O23.00 | Infections of kidney in pregnancy, unspecified trimester | ✓ |
| O23.00 | Infections of kidney in pregnancy, unspecified trimester | ✓ |
| O23.01 | Infections of kidney in pregnancy, first trimester | ✓ |
| O23.01 | Infections of kidney in pregnancy, first trimester | ✓ |
| O23.1 | Infections of bladder in pregnancy | — |
| O23.1 | Infections of bladder in pregnancy | — |
| O23.02 | Infections of kidney in pregnancy, second trimester | ✓ |
| O23.02 | Infections of kidney in pregnancy, second trimester | ✓ |
| O23.2 | Infections of urethra in pregnancy | — |
| O23.2 | Infections of urethra in pregnancy | — |
| O23.03 | Infections of kidney in pregnancy, third trimester | ✓ |
| O23.03 | Infections of kidney in pregnancy, third trimester | ✓ |
| O23.3 | Infections of other parts of urinary tract in pregnancy | — |
| O23.3 | Infections of other parts of urinary tract in pregnancy | — |
| O23.4 | Unspecified infection of urinary tract in pregnancy | — |
| O23.4 | Unspecified infection of urinary tract in pregnancy | — |
| O23.5 | Infections of the genital tract in pregnancy | — |
| O23.5 | Infections of the genital tract in pregnancy | — |
| O23.9 | Unspecified genitourinary tract infection in pregnancy | — |
| O23.9 | Unspecified genitourinary tract infection in pregnancy | — |
| O23.10 | Infections of bladder in pregnancy, unspecified trimester | ✓ |
| O23.10 | Infections of bladder in pregnancy, unspecified trimester | ✓ |
| O23.11 | Infections of bladder in pregnancy, first trimester | ✓ |
| O23.11 | Infections of bladder in pregnancy, first trimester | ✓ |
| O23.12 | Infections of bladder in pregnancy, second trimester | ✓ |
| O23.12 | Infections of bladder in pregnancy, second trimester | ✓ |
| O23.13 | Infections of bladder in pregnancy, third trimester | ✓ |
| O23.13 | Infections of bladder in pregnancy, third trimester | ✓ |
| O23.20 | Infections of urethra in pregnancy, unspecified trimester | ✓ |
| O23.20 | Infections of urethra in pregnancy, unspecified trimester | ✓ |
| O23.21 | Infections of urethra in pregnancy, first trimester | ✓ |
| O23.21 | Infections of urethra in pregnancy, first trimester | ✓ |
| O23.22 | Infections of urethra in pregnancy, second trimester | ✓ |
| O23.22 | Infections of urethra in pregnancy, second trimester | ✓ |
| O23.23 | Infections of urethra in pregnancy, third trimester | ✓ |
| O23.23 | Infections of urethra in pregnancy, third trimester | ✓ |
| O23.30 | Infections of other parts of urinary tract in pregnancy, unspecified trimester | ✓ |
| 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 | ✓ |
| O23.31 | Infections of other parts of urinary tract in pregnancy, first trimester | ✓ |
| O23.32 | Infections of other parts of urinary tract in pregnancy, second trimester | ✓ |
| O23.32 | Infections of other parts of urinary tract in pregnancy, second trimester | ✓ |
| O23.33 | Infections of other parts of urinary tract in pregnancy, third trimester | ✓ |
| O23.33 | Infections of other parts of urinary tract in pregnancy, third trimester | ✓ |
| O23.40 | Unspecified infection of urinary tract in pregnancy, unspecified trimester | ✓ |
| O23.40 | Unspecified infection of urinary tract in pregnancy, unspecified trimester | ✓ |
| O23.41 | Unspecified infection of urinary tract in pregnancy, first trimester | ✓ |
| O23.41 | Unspecified infection of urinary tract in pregnancy, first trimester | ✓ |
| O23.42 | Unspecified infection of urinary tract in pregnancy, second trimester | ✓ |
| O23.42 | Unspecified infection of urinary tract in pregnancy, second trimester | ✓ |
| O23.43 | Unspecified infection of urinary tract in pregnancy, third trimester | ✓ |
| O23.43 | Unspecified infection of urinary tract in pregnancy, third trimester | ✓ |
| O23.51 | Infection of cervix in pregnancy | — |
| O23.51 | Infection of cervix in pregnancy | — |
| O23.52 | Salpingo-oophoritis in pregnancy | — |
| O23.52 | Salpingo-oophoritis in pregnancy | — |
| O23.59 | Infection of other part of genital tract in pregnancy | — |
| O23.59 | Infection of other part of genital tract in pregnancy | — |
| O23.90 | Unspecified genitourinary tract infection in pregnancy, unspecified trimester | ✓ |
| O23.90 | Unspecified genitourinary tract infection in pregnancy, unspecified trimester | ✓ |
| O23.91 | Unspecified genitourinary tract infection in pregnancy, first trimester | ✓ |
| O23.91 | Unspecified genitourinary tract infection in pregnancy, first trimester | ✓ |
| O23.92 | Unspecified genitourinary tract infection in pregnancy, second trimester | ✓ |
| O23.92 | Unspecified genitourinary tract infection in pregnancy, second trimester | ✓ |
| O23.93 | Unspecified genitourinary tract infection in pregnancy, third trimester | ✓ |
| O23.93 | Unspecified genitourinary tract infection in pregnancy, third trimester | ✓ |
| O23.511 | Infections of cervix in pregnancy, first trimester | ✓ |
| O23.511 | Infections of cervix in pregnancy, first trimester | ✓ |
| O23.512 | Infections of cervix in pregnancy, second trimester | ✓ |
| O23.512 | Infections of cervix in pregnancy, second trimester | ✓ |
| O23.513 | Infections of cervix in pregnancy, third trimester | ✓ |
| O23.513 | Infections of cervix in pregnancy, third trimester | ✓ |
| O23.519 | Infections of cervix in pregnancy, unspecified trimester | ✓ |
| O23.519 | Infections of cervix in pregnancy, unspecified trimester | ✓ |
| O23.521 | Salpingo-oophoritis in pregnancy, first trimester | ✓ |
| O23.521 | Salpingo-oophoritis in pregnancy, first trimester | ✓ |
| O23.522 | Salpingo-oophoritis in pregnancy, second trimester | ✓ |
| O23.522 | Salpingo-oophoritis in pregnancy, second trimester | ✓ |
| O23.523 | Salpingo-oophoritis in pregnancy, third trimester | ✓ |
| O23.523 | Salpingo-oophoritis in pregnancy, third trimester | ✓ |
| O23.529 | Salpingo-oophoritis in pregnancy, unspecified trimester | ✓ |
| O23.529 | Salpingo-oophoritis in pregnancy, unspecified trimester | ✓ |
| O23.591 | Infection of other part of genital tract in pregnancy, first trimester | ✓ |
| 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 | ✓ |
| O23.592 | Infection of other part of genital tract in pregnancy, second trimester | ✓ |
| O23.593 | Infection of other part of genital tract in pregnancy, third trimester | ✓ |
| O23.593 | Infection of other part of genital tract in pregnancy, third trimester | ✓ |
| O23.599 | Infection of other part of genital tract in pregnancy, unspecified trimester | ✓ |
| O23.599 | Infection of other part of genital tract in pregnancy, unspecified trimester | ✓ |
Frequently asked questions
What is ICD-10-CM code O23?
O23 is an ICD-10-CM category covering Infections of genitourinary tract in pregnancy. It contains 92 more specific diagnosis codes, 72 of which are billable.
Is O23 a billable code?
No — O23 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example O23.0 — Infections of kidney in pregnancy). 72 of the 92 codes under O23 are billable.
What codes fall under O23?
O23 includes O23.0, O23.0, O23.00, O23.00, O23.01, plus 87 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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