ICD-10-CM > Z00-Z99 > Z77-Z99 > Z85 > Z85.8 > Z85.81 Z85.81 Personal history of malignant neoplasm of lip, oral cavity, and pharynx Non-Billable/Non-Specific Applicable To Conditions classifiable to C00-C14 Codes Z85.810Personal history of malignant neoplasm of tongueZ85.818Personal history of malignant neoplasm of other sites of lip, oral cavity, and pharynxZ85.819Personal history of malignant neoplasm of unspecified site of lip, oral cavity, and pharynx