N30.4 vs N99.842
N30.4 (Irradiation cystitis) compared with N99.842 (Postprocedural seroma of a genitourinary system organ or structure following a genitourinary system procedure), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. N99.842 carries an Excludes2 note covering N30.4: “irradiation cystitis (N30.4-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| N30.4Irradiation cystitis | N99.842Postprocedural seroma of a genitourinary system organ or structure following a genitourinary system procedure | |
|---|---|---|
| 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 | Irradiation cystitis is a non-billable ICD-10-CM category code (N30.4). | Postprocedural seroma of a genitourinary system organ or structure following a genitourinary system procedure is a billable ICD-10-CM diagnosis code (N99.842). |
| Use additional code | code to identify infectious agent (B95-B97) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources