ICD-10 Code A59.02 – Trichomonal prostatitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A59.02 – Trichomonal prostatitis
What it is
A59.02 identifies prostatitis caused by Trichomonas vaginalis, a sexually transmitted protozoal infection. Use it when the prostate is documented as infected with trichomonads.
Clinical signs
Clinical features may include pelvic or perineal discomfort, dysuria, urinary frequency, or prostatitis symptoms with evidence of Trichomonas infection. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents trichomonal prostatitis, trichomonas involving the prostate, or prostatitis due to Trichomonas vaginalis. It is appropriate when the diagnosis is confirmed or clearly stated in the record. Check documentation if the note only mentions urethritis or nonspecific genitourinary infection.
Do not use for
Do not use A59.02 for prostatitis without documented trichomonal cause. Do not assign it for other sexually transmitted infections or for trichomoniasis at nonprostatic sites unless the prostate is specifically involved.
Coding tip
Code the documented organism and site together; if the prostate is not named, do not assume A59.02.