Can Medicare Part B providers who bill on the professional CMS-1500 claim form, and electronic equivalent, bill unclassified drug code C9399?
No, unclassified drug code C9399 is used in outpatient settings when billing Medicare for approved drugs that have not yet been assigned billing codes and have not been determined to be eligible for special OPPS pass-through payments. View Medicare to Pay for Unclassified, FDA-Approved Drugs Administered in Outpatient Departments for additional information.