Yes, code A4620 (Variable Concentration Mask) can be used when billing the Durable Medical Equipment Medicare Administrative Contractors (DME MACs). The assignment of this HCPCS code is not an approval or endorsement of Oxy2Mask, nor does it imply or guarantee claim reimbursement or coverage. For billing and coverage information for your jurisdiction, there are three options:
Refer to your DME MAC Supplier Manual for coverage
Refer to your claim submission instructions
Contact your local DME MAC