ICD-10-CM > N00-N99 > N40-N53 > N45 N45 Orchitis and epididymitis Non-Billable/Non-Specific Use Additional code (B95-B97), to identify infectious agent. Codes N45.1EpididymitisN45.2OrchitisN45.3Epididymo-orchitisN45.4Abscess of epididymis or testis