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Base of Anterior Cranial Fossa Procedures

Base of anterior cranial fossa definitive skull base procedures for tumor resection and reconstruction at the anterior skull base. CPT codes 61600–61601 specify definitive operative resections involving the base of the anterior cranial fossa and associated reconstructive steps.

Base of Middle Cranial Fossa Procedures

Base of middle cranial fossa definitive skull base procedures for resection and reconstruction of lesions centered in the middle cranial fossa. CPT codes 61605–61613 cover definitive surgical resections at the middle cranial fossa with procedure distinctions by extent and reconstruction.

Base of Posterior Cranial Fossa Procedures

Base of posterior cranial fossa definitive skull base procedures for resection and repair of lesions in the posterior skull base. CPT codes 61615–61616 designate posterior cranial fossa base procedures including tumor excision and necessary reconstructive measures.