ICD-10-CM>C00-D49>C00-C14>C04C04Malignant neoplasm of floor of mouthNon-Billable/Non-SpecificUse Additionalcode to identify:alcohol abuse and dependence (F10.-)history of tobacco dependence (Z87.891)tobacco dependence (F17.-)tobacco use (Z72.0)CodesC04.0Malignant neoplasm of anterior floor of mouthC04.1Malignant neoplasm of lateral floor of mouthC04.8Malignant neoplasm of overlapping sites of floor of mouthC04.9Malignant neoplasm of floor of mouth, unspecified