CPT® 61590, Under Middle Cranial Fossa Skull Base Procedures

The Current Procedural Terminology (CPT®) code 61590 as maintained by American Medical Association, is a medical procedural code under the range - Middle Cranial Fossa Skull Base Procedures.

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The provider accesses the middle cranial fossa using an infratemporal (below the temporal fossa) preauricular (in front of the external ear) approach, sometimes called a transparotid approach, to expose a lesion or defect at the base of the skull. For lesions that extend posteriorly into the temporal bone, the provider can choose to combine this approach with a transtemporal approach. The selection of a particular approach will depend on the location and size of the lesion. 

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