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 Hodgkin lymphoma (C82-C85)
 * C26.9 Malignant neoplasm of ill-defined sites within the digestive system
 * Malignant neoplasm of alimentary canal or tract NOS
 * Malignant neoplasm of gastrointestinal tract NOS
 * Excludes1: malignant neoplasm of abdominal NOS (C76.2)
 * malignant neoplasm of intra-abdominal NOS (C76.2)

Malignant neoplasm of respiratory and intrathoracic organs (C30-C39)

 * Includes: malignant neoplasm of middle ear
 * Excludes1: mesothelioma (C45.-)

C30 Malignant neoplasm of nasal cavity and middle ear

 * C30.0 Malignant neoplasm of nasal cavity
 * Malignant neoplasm of cartilage of nose
 * Malignant neoplasm of nasal concha
 * Malignant neoplasm of internal nose
 * Malignant neoplasm of septum of nose
 * Malignant neoplasm of vestibule of nose
 * Excludes1: malignant neoplasm of nasal bone (C41.0)
 * malignant neoplasm of nose NOS (C76.0)
 * malignant neoplasm of olfactory bulb (C72.2-)
 * malignant neoplasm of posterior margin of nasal septum and choana (C11.3)
 * malignant neoplasm of skin of nose (C43.31, C44.31)
 * malignant neoplasm of turbinates (C41.0)
 * C30.1 Malignant neoplasm of middle ear
 * Malignant neoplasm of antrum tympanicum
 * Malignant neoplasm of auditory tube
 * Malignant neoplasm of eustachian tube
 * Malignant neoplasm of inner ear
 * Malignant neoplasm of mastoid air cells
 * Malignant neoplasm of tympanic cavity
 * Excludes1: malignant neoplasm of auricular canal (external) (C43.2-,C44.2-)
 * malignant neoplasm of bone of ear (meatus) (C41.0)
 * malignant neoplasm of cartilage of ear (C49.0)
 * malignant neoplasm of skin of (external) ear (C43.2-, C44.2-)

C31 Malignant neoplasm of accessory sinuses

 * C31.0 Malignant neoplasm of maxillary sinus
 * Malignant neoplasm of antrum (Highmore) (maxillary)
 * C31.1 Malignant neoplasm of ethmoidal sinus
 * C31.2 Malignant neoplasm of frontal sinus
 * C31.