ICD-10-CM 2027
ICD-10 code for Periepididymitis
From the official ICD-10-CM alphabetic index entry “Periepididymitis”. Page updated September 29, 2026.
About coding Periepididymitis
The ICD-10-CM code for Periepididymitis is N45.1 (Epididymitis).
Within N45 (orchitis and epididymitis), N45.1 is specifically for epididymitis. Related codes cover orchitis (N45.2), epididymo-orchitis (N45.3) and abscess of epididymis or testis (N45.4).
Use an additional code (B95-B97), to identify infectious agent.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about Periepididymitis ICD-10 codes
What is the ICD-10 code for Periepididymitis?
- N45.1 — Epididymitis.
Is N45.1 billable?
- Yes. N45.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can N45.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict N45.1 as a principal diagnosis.
Is N45.1 a CC or MCC?
- No. N45.1 is neither a CC nor an MCC under MS-DRG v44.0.