C14 - Malignant neoplasm of other and ill-defined sites in the lip, oral cavity and pharynx
C14.8 - Malignant neoplasm of overlapping sites of lip, oral cavity and pharynx
InclusionTerm:
-Primary malignant neoplasm of two or more contiguous sites of lip, oral cavity and pharynx
Excludes 1:
-'book leaf' neoplasm [ventral surface of tongue and floor of mouth] C06.89)