AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2016 Issue 2; Ask the Editor

Resection of Malignant Neoplasm of Infratemporal Fossa

The patient was admitted for surgical treatment of a left infratemporal fossa malignancy with perineural invasion. It appears that the patient underwent en bloc resection of the tumor. The surgeon excised the infratemporal fossa tumor using a preauricular approach, including left parotidectomy with facial nerve dissection; left modified radical neck dissection level 1, 2, 3, and 4; and resection of neoplastic lesion involving fibroconnective tissue, with sacrifice of the hypoglossal nerve, spinal accessory nerve, internal jugular vein, and external carotid artery. Areas resected included: the head, face, lower jaw and neck, facial nerves, vessels, and muscles. Should ICD-10-PCS codes be assigned for all of the sites excised? How is this surgery coded? ...

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