Emergency: 119
AMDA-IMIC

C09 Malignant neoplasm of tonsil

Category / Non-billable header 4 subcodes

Block: Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)

Excludes 2 (not included here)

  • 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)

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
C09..0 Malignant neoplasm of tonsillar fossa Yes
C09..1 Malignant neoplasm of tonsillar pillar (anterior) (posterior) Yes
C09..8 Malignant neoplasm of overlapping sites of tonsil Yes
C09..9 Malignant neoplasm of tonsil, unspecified Yes

Last reviewed: September 2026