HCPCS A7038: Filter, Disposable, Used With Positive Airway Pressure Device

A7038 is for a disposable filter, typically changed more frequently (e.g., twice a month), while A7039 is for a non-disposable or reusable filter, which is meant to be cleaned and replaced less often (e.g., once every six months).

No. Suppliers must contact the patient before dispensing a refill to ensure they are still using the equipment, the items are approaching exhaustion, and they confirm the order is still needed. Automatic or "pre-determined" shipping without a valid, documented refill request is a common reason for claim denial.

Not usually for Medicare, but some commercial payers may require prior authorization for PAP supplies.