Ziihera (zanidatamab-hrii) prior authorization form and instructions
This document is Cigna's prior authorization request form and instructions for coverage consideration of Ziihera (zanidatamab-hrii), used by prescribers and facilities to request authorization for patients (including those with unresectable or metastatic HER2-positive biliary tract cancer). It affects providers submitting drug coverage requests to Cigna and designated specialty pharmacies.
No material clinical or coverage changes in this revision.
Coverage criteria and determination
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