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Billing and Coding: MolDX: SEPT9 Gene Test
A55206
Wisconsin Physicians Service Insurance Corporation (J05)
Effective: November 30, 2023
Updated: December 31, 2025
Policy Summary
MolDX considers the SEPT9 (CPT 81327) Septin 9 methylation analysis for colorectal cancer detection a statutorily excluded service and Medicare does not cover it; claims for this test will be denied. Asymptomatic screening is not a Medicare benefit, and an ABN is not required for statutorily excluded services. To document a denial, submit CPT 81327, append modifier GY (GX if a voluntary ABN), and include the DEX Z-Code in the specified claim comment/narrative fields.
Coverage Criteria Preview
Key requirements from the full policy
"SEPT9 (Septin 9) promoter methylation analysis (CPT 81327) for colorectal cancer detection is not a Medicare-covered service and will be denied as a statutorily excluded service."
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