CPT® 66, Under Provider Services and Ambulatory Service Center Modifiers

The Current Procedural Terminology (CPT®) code 66 as maintained by American Medical Association, is a medical procedural code under the range - Provider Services and Ambulatory Service Center Modifiers.

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Lay Term

Summary

Append modifier 66 to a procedure code when the provider who performed the procedure was part of a surgical team performing a highly complex or difficult procedure.  

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Modifier Guidelines

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