N45.4 — Abscess of epididymis or testis
Is N45.4 billable?
Yes — N45.4 is billable for FY2027. N45.4 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. N45.4 may be submitted for encounters from October 1, 2026 through September 30, 2027.
N45.4 at a glance
| Code | N45.4 |
|---|---|
| Description | Abscess of epididymis or testis |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does N45.4 group to?
N45.4 sits in MDC 12 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 727Inflammation of the Male Reproductive System with MCCmedical
- 728Inflammation of the Male Reproductive System without MCCmedical
As a secondary diagnosis, N45.4 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is N45.4 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to N45.4. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Abscess › epididymis (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
- Abscess › testis (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)
Use additional code — inherited from N45
Report an additional code alongside N45.4 to fully describe the condition. N45.4 is sequenced first.
- code (B95-B97), to identify infectious agent.
Excludes2 — not included here — inherited from Chapter 14
The conditions below are not part of N45.4, but a patient may have both at the same time. When documentation supports it, N45.4 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
How long has N45.4 existed?
N45.4 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.