ICD-10 Code for urinary tract infection (UTI)
The ICD-10-CM code for urinary tract infection (UTI) is N39.0 when documented without further specification. "UTI" without a documented site codes to N39.0 - and the organism, when known, is reported with an additional B95-B97 code.
Which Code Should You Use?
What to Document
- Infection site when known (bladder/kidney changes the category).
- Causative organism culture result (add B96.20 for E. coli, etc.).
- Catheter association (T83.511- complication coding applies instead).
Coding Notes
N39.0 carries a "use additional code (B95-B97) to identify infectious agent" instruction - report the organism whenever the culture is documented.