Malignant neoplasm of nasal cavity and middle ear (C30)

ICD-10 code C30 is used specifically for identifying and classifying malignant tumors found in the nasal cavity and middle ear.

This section includes two primary codes: C30.0 for malignant neoplasm of the nasal cavity, and C30.1 for malignant neoplasm of the middle ear. The nasal cavity code (C30.0) covers various types of cancers such as squamous cell carcinoma, olfactory neuroblastoma, and malignant melanoma affecting areas including the nasal septum, conchae, vestibule, and paranasal sinuses. Synonyms like "primary malignant olfactory neuroblastoma" or "carcinoma of nasal cavity" help clarify that these terms correspond to code C30.0 in medical records and billing. Similarly, C30.1 addresses malignant tumors in the middle ear and related structures including the Eustachian tube, mastoid air cells, and tympanic cavity. This code encompasses tumors referred to as "primary malignant middle ear paraganglioma" or "malignant tumor of tympanic cavity," linking these terms directly to the proper ICD-10 classification. Together, these codes assist healthcare professionals and coders in accurately documenting and managing head and neck cancers located in these specific anatomical areas.