Wiki Humana Medicare Advantage denial

Did you review the diagnoses to determine if they were coded correctly? There are several 'encounter for...' diagnoses in the Z codes that are supposed to be the primary diagnosis.
 
I have a question please. I am billing a pre op cardiovascular exam due to the patient having dental work get implants, the Dr also did device check same day during the visit. Humana is denying the claim as THE ENCOUNTER DIAGNOSIS WAS NOT BILLED IN THE PRIMARY POSITION - i billed dx code z01.810 as primary dx for visit then i billed 93284 an 93290 with dx code i50.20 , i42.9 and z95.810. am I missing something or my diagnosis are not on the correct order? thank you for your help .
 
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