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Article Overview

This Medicare Carriers Manual article describes how local Level III codes and modifiers are handled when a service is not covered by existing national code sets. It outlines the administrative submission and review process, the types of information requested for adding or changing a local code or modifier, and the general approach to processing claims while a request is pending. The content is relevant to billing, coding, reimbursement, and Medicare administrative staff working with HCPCS-related code maintenance.