C67.1 (Malignant neoplasm of dome of bladder) compared with D30.3 (Benign neoplasm of bladder), from the official CMS tabular data. C67.1 and D30.3 name the same anatomical site (bladder) with a different neoplasm behavior.
Same anatomical site, different neoplasm behavior.
Same site — benign neoplasm (bladder)
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. C67.1 and D30.3 name the same anatomical site (bladder) 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.
| C67.1Malignant neoplasm of dome of bladder | D30.3Benign neoplasm of bladder | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | C00-D49 — Neoplasms | C00-D49 — Neoplasms |
| Definition | Malignant neoplasm of dome of bladder is a billable ICD-10-CM diagnosis code (C67.1). | Benign neoplasm of bladder is a billable ICD-10-CM diagnosis code (D30.3). |
| Includes | — | Benign neoplasm of ureteric orifice of bladder Benign neoplasm of urethral orifice of bladder |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources