Urinary tract infection (UTI) ICD-10 code
The ICD-10-CM code for urinary tract infection (uti) is N39.0 — urinary tract infection, site not specified. It is billable and valid for submission on a claim. There are 14 related codes, and which one you use depends on what the documentation supports.
Also written as urinary tract infection, bladder infection.
The mistake coders make here
N39.0 is site unspecified. If the documentation localises it — cystitis, pyelonephritis — code the site instead. N39.0 also carries a 'use additional code' instruction to identify the organism, if it is known.
Putting urinary tract infection (uti) on a claim? Check the claim’s diagnosis codes free — Excludes1 conflicts, header codes and missing seventh characters, before it goes out.
All ICD-10-CM codes for urinary tract infection (uti)
11 of 14 are billable. Green means you can submit it as-is.
| Code | Use it when |
|---|---|
| N39.0 | Urinary tract infection, site not specified |
| P39.3 | Neonatal urinary tract infection |
| O86.2 | Urinary tract infection following deliverynot billable on its own |
| O86.29 | Other urinary tract infection following delivery |
| O23.4 | Unspecified infection of urinary tract in pregnancynot billable on its own |
| Z87.440 | Personal history of urinary (tract) infections |
| O23.3 | Infections of other parts of urinary tract in pregnancynot billable on its own |
| O23.41 | Unspecified infection of urinary tract in pregnancy, first trimester |
| O23.43 | Unspecified infection of urinary tract in pregnancy, third trimester |
| O23.42 | Unspecified infection of urinary tract in pregnancy, second trimester |
| O23.40 | Unspecified infection of urinary tract in pregnancy, unspecified trimester |
| N99.531 | Infection of continent stoma of urinary tract |
| O86.20 | Urinary tract infection following delivery, unspecified |
| O08.83 | Urinary tract infection following an ectopic and molar pregnancy |
Once you have the code
- Check the whole claim — Excludes1 conflicts and missing seventh characters, free
- Denial codes explained — what CO-16, CO-97 and the rest actually mean
- Decision guides — walk a chart note to a code, guideline cited
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