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

Malignant neoplasms of the lip, oral cavity, and pharynx are a group of cancers that originate from cells in these parts of the body. This includes the lips, the inside lining of the lips and cheeks (buccal mucosa), the teeth, the top surface of the tongue and underlying muscles, the gums, the front two-thirds of the tongue, the bony top of the mouth (hard palate), the bottom of the mouth (floor), the salivary glands, the tonsils, and the back portion of the tongue or the throat (pharynx). Factors that can increase the risk of these cancers include tobacco use, heavy alcohol consumption, certain types of human papillomavirus (HPV), and a diet lacking in fruits and vegetables. Symptoms often include persistent mouth sores, tongue pain, a lump or thickening in the skin lining the inside of the mouth, difficulty chewing or swallowing, jaw pain or stiffness, hoarseness, and an uncomfortable feeling of something stuck in the throat. The disease progression varies based on the location of the tumor and the type of cell implicated.