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C09 - Malignant neoplasm of tonsil


The ICD 10 Code for Malignant neoplasm of tonsil is listed as C09.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: C09
Description: Malignant neoplasm of tonsil
  • Use additional 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 use (Z87.891)
  • occupational exposure to environmental tobacco smoke (Z57.31)
  • tobacco dependence (F17.-)
  • tobacco use (Z72.0)
  • Excludes2: malignant neoplasm of lingual tonsil (C02.4)
  • malignant neoplasm of pharyngeal tonsil (C11.1)
Chapter Neoplasms (C00-D49)
ICD-10-CM Children (deeper level / typically more specific) of C09:
C09.0 - Malignant neoplasm of tonsillar fossa
C09.1 - Malignant neoplasm of tonsillar pillar (anterior) (posterior)
C09.8 - Malignant neoplasm of overlapping sites of tonsil
C09.9 - Malignant neoplasm of tonsil, unspecified