C00 - Malignant neoplasm of lip
C00.4 - Malignant neoplasm of lower lip, inner aspect
InclusionTerm:
-Malignant neoplasm of buccal aspect of lower lip
-Malignant neoplasm of frenulum of lower lip
-Malignant neoplasm of mucosa of lower lip
-Malignant neoplasm of oral aspect of lower lip