Michigan Medicaid shares their 2019 code changes, we see four HCPC's being implemented that all require Prior Authorization. See excerpt below.
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JANUARY 1, 2019 ANNUAL HEALTHCARE COMMON PROCEDURE CODING SYSTEM (HCPCS) CODE UPDATES
Listed below are HCPCS codes being adopted by MDHHS for dates of service on and after January 1, 2019, and the provider groups allowed to bill these codes. Any new procedure code not listed will not be covered at this time, except for reporting codes. Coding information is based on the most recent file from CMS. If additional code revisions are released by CMS, a subsequent bulletin will be published notifying providers of this change.
The symbol * will appear with those codes requiring prior authorization (PA).
Medical Suppliers, Orthotists, and Prosthetists
A6460* Synthetic resorbable wound dressing
A6461* Synthetic resorbable wound bandage
B4105* in-line digestive enzyme cartridge for enteral feeding
L8698* misc. component, supply, or accessory used with total artificial heart.