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C09 Malignant neoplasm of tonsil
BackC09.0Malignant neoplasm of tonsillar fossaCategoryC09.1Malignant neoplasm of tonsillar pillar (anterior) (posterior)CategoryC09.8Malignant neoplasm of overlapping sites of tonsilCategoryC09.9Malignant neoplasm of tonsil, unspecifiedCategory
Category
C09
Malignant neoplasm of tonsil
EXCLUDES
Excludes2: malignant neoplasm of lingual tonsil (C02.4)
malignant neoplasm of pharyngeal tonsil (C11.1)
malignant neoplasm of pharyngeal tonsil (C11.1)
CODING RULE
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)
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)
- Chapter
- II · Neoplasms
- Section
- C00-C14
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.