C09Malignant neoplasm of tonsil
ICD-10-CM category (non-billable header) code — part of Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
Coding Notes
Excludes2 (not part of this condition — may code both)
- malignant neoplasm of lingual tonsil (C02.4)
- malignant neoplasm of pharyngeal tonsil (C11.1)
Use Additional Code
- code to identify:
- alcohol abuse and dependence (F10.-)
- exposure to environmental tobacco smoke (Z77.22)
- exposure to tobacco smoke in the perinatal period (P96.81)
- history of tobacco dependence (Z87.891)
- occupational exposure to environmental tobacco smoke (Z57.31)
- tobacco dependence (F17.-)
- tobacco use (Z72.0)
Subcategories (4)
- C09.0 Malignant neoplasm of tonsillar fossa
- C09.1 Malig neoplasm of tonsillar pillar (anterior) (posterior)
- C09.8 Malignant neoplasm of overlapping sites of tonsil
- C09.9 Malignant neoplasm of tonsil, unspecified