N45.4 — Abscess of epididymis or testis
N45.4 is a billable, specific ICD-10-CM code for abscess of epididymis or testis. It is valid for submission on a claim.
Other codes that can never be billed with N45.4
These codes carry an Excludes1 note pointing at N45.4. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N45.4 alone.
- N49Inflammatory disorders of male genital organs, not elsewhere classified
Risk adjustment
N45.4 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
N45.4 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56697Billing and Coding: Non-Invasive Vascular Studies
- A56758Billing and Coding: Non-Invasive Vascular Studies
- A57591Billing and Coding: Non-Invasive Abdominal / Visceral Vascular Studies
How N45.4 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to N45.4.
- Abscess›epididymis
- Abscess›testis
Code history
N45.4 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share N45. If N45.4 is not quite right, the correct code is usually one of these.
Questions about N45.4
- Is N45.4 a billable ICD-10-CM code?
- Yes. N45.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does N45.4 sit in the tabular list?
- Diseases of the genitourinary system (N00-N99), in the block Diseases of male genital organs (N40-N53).