ICD-10 Code for Prostatitis
Also indexed as (congestive) (suppurative) (with cystitis)
The ICD-10-CM code for prostatitis is N41.9 — Inflammatory disease of prostate, unspecified. This is the code the Alphabetic Index gives for prostatitis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
N41.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which prostatitis code should you use?
The Alphabetic Index lists 8 codes under Prostatitis. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| acute | N41.0 | Acute prostatitis | |
| cavitary | N41.8 | Other inflammatory diseases of prostate | |
| chronic | N41.1 | Chronic prostatitis | |
| diverticular | N41.8 | Other inflammatory diseases of prostate | |
| due to Trichomonas | A59.02 | Trichomonal prostatitis | |
| fibrous | N41.1 | Chronic prostatitis | |
| gonococcal | A54.22 | Gonococcal prostatitis | |
| granulomatous | N41.4 | Granulomatous prostatitis | |
| hypertrophic | N41.1 | Chronic prostatitis | |
| subacute | N41.1 | Chronic prostatitis | |
| trichomonal | A59.02 | Trichomonal prostatitis | |
| tuberculous | A18.14 | Tuberculosis of prostate |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources