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Billing and Coding: Reporting a Non-Covered Test Performed in Preparation for a Non-Covered Procedure
A55774
Effective: October 2, 2025
Updated: December 31, 2025
Policy Summary
Diagnostic tests performed solely to prepare for non-covered services are typically non-covered and must be reported as non-covered on the claim. Example: computerized corneal topography (CPT 92025) performed to plan implantation of a non-covered presbyopia/astigmatism-correcting intraocular lens should be billed with CPT 92025 and modifier -GY per Medicare billing guidance.
Coverage Criteria Preview
Key requirements from the full policy
"When a diagnostic test is performed solely to prepare for a non-covered service, report the diagnostic test as non-covered using the appropriate code with a -GY modifier (example: CPT 92025 + -GY f..."
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