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Molecular Pathology/Genetic Testing Reported with Unlisted Codes
Effective date
Nov 1, 2026
Identified
Nov 7, 2026
Summary
UnitedHealthcare's Medicare Advantage medical policy bulletin for November 2026 revised the policy on molecular pathology and genetic testing reported with unlisted codes, removing diagnosis code Z59.7 from the non-covered diagnosis codes list. Billing teams should update diagnosis and claim edit lists for these unlisted genetic and molecular testing claims to reflect the removal.
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What to do
Action · 3 steps
01Already effective 2026-11-01: Billing team should remove Z59.7 from any internal non-covered diagnosis lists or claim edits used for UnitedHealthcare Medicare Advantage molecular pathology and genetic testing claims reported with unlisted codes, and verify that claims with Z59.7 are routed for normal submission.
02Providers and front desk staff should be told that Z59.7 is no longer on the non-covered list for these tests, so diagnosis selection on orders is documented accurately.
03Review the Applicable Codes section of the full bulletin for any additional code-level changes affecting unlisted molecular pathology claims.
Codes mentioned
Z59.7
Original notice
Molecular Pathology/Genetic Testing Reported with Unlisted Codes
uhcprovider.com · Always check the source before changing claims.