C07 (Malignant neoplasm of parotid gland) compared with D37.030 (Neoplasm of uncertain behavior of the parotid salivary glands), from the official CMS tabular data. C07 and D37.030 name the same anatomical site (parotid) with a different neoplasm behavior. MedCoder-derived
Same anatomical site, different neoplasm behavior.
Same site — uncertain behavior (parotid)
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. C07 and D37.030 name the same anatomical site (parotid) with a different neoplasm behavior.
From the CMS/CDC 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.
| C07Malignant neoplasm of parotid gland | D37.030Neoplasm of uncertain behavior of the parotid salivary glands | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | C00-D49 — Neoplasms | C00-D49 — Neoplasms |
| Definition | Malignant neoplasm of parotid gland is a billable ICD-10-CM diagnosis code (C07). | Neoplasm of uncertain behavior of the parotid salivary glands is a billable ICD-10-CM diagnosis code (D37.030). |
| Use additional code | code to identify: alcohol abuse and dependence (F10.-) exposure to environmental tobacco smoke (Z77.22) | — |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources