N30 vs N41.3
N30 (Cystitis) compared with N41.3 (Prostatocystitis), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. N30 carries an Excludes1 note covering N41.3: “prostatocystitis (N41.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| N30Cystitis | N41.3Prostatocystitis | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | N00-N99 — Diseases of the Genitourinary System (N00-N99) | N00-N99 — Diseases of the Genitourinary System (N00-N99) |
| Definition | Cystitis is a non-billable ICD-10-CM category code (N30). | Prostatocystitis is a billable ICD-10-CM diagnosis code (N41.3). |
| Use additional code | code to identify infectious agent (B95-B97) | code (B95-B97), to identify infectious agent. |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources