C68.8 (Malignant neoplasm of overlapping sites of urinary organs) compared with D09.19 (Carcinoma in situ of other urinary organs), from the official CMS tabular data. C68.8 and D09.19 name the same anatomical site (urinary organ or system) with a different neoplasm behavior.
Same anatomical site, different neoplasm behavior.
Same site — carcinoma in situ (urinary organ or system)
The behavior documented for the site — malignant primary, secondary, carcinoma in situ, benign, uncertain or unspecified — decides which column of the neoplasm table, and therefore which code, applies.
Source: CMS Table of Neoplasms
Same site, different neoplasm behavior. C68.8 and D09.19 name the same anatomical site (urinary organ or system) with a different neoplasm behavior.
From the CMS Table of Neoplasms: the behavior documented for that site — malignant primary, secondary, carcinoma in situ, benign, uncertain or unspecified — decides which column, and therefore which code, applies.
| C68.8Malignant neoplasm of overlapping sites of urinary organs | D09.19Carcinoma in situ of other urinary organs | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | C00-D49 — Neoplasms | C00-D49 — Neoplasms |
| Definition | Malignant neoplasm of overlapping sites of urinary organs is a billable ICD-10-CM diagnosis code (C68.8). | Carcinoma in situ of other urinary organs is a billable ICD-10-CM diagnosis code (D09.19). |
| Includes | Primary malignant neoplasm of two or more contiguous sites of urinary organs whose point of origin cannot be determined | Bowen's disease erythroplasia grade III intraepithelial neoplasia Queyrat's erythroplasia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources