ICD-10 Code A02.25 – Salmonella pyelonephritis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A02.25 – Salmonella pyelonephritis
What it is
A02.25 identifies pyelonephritis caused by Salmonella infection. Use it when the kidney infection is documented as due to Salmonella species, not just a general urinary tract infection.
Clinical signs
Clinical features vary; refer to documentation. Typical pyelonephritis findings may include flank pain, fever, urinary symptoms, and evidence of upper urinary tract infection, with Salmonella named as the cause.
When to use this code
Use this code when the provider documents Salmonella pyelonephritis, Salmonella kidney infection, or equivalent wording. It is appropriate when the organism is identified or clearly linked to the renal infection in the record.
If the note only says Salmonella infection without kidney involvement, this code is not supported. Check documentation for site, organism, and whether the condition is acute, chronic, or otherwise specified.
Do not use for
Do not use A02.25 for uncomplicated cystitis, asymptomatic bacteriuria, or nonspecific urinary infection. If pyelonephritis is not documented or Salmonella is not the cause, choose a different code.
Coding tip
Confirm both the renal diagnosis and the Salmonella organism in the provider’s documentation before assigning A02.25.