HCPCS Level II code A4575 describes a topical hyperbaric oxygen chamber, disposable used to deliver localized hyperbaric oxygen therapy; the service is the provision of a single-use topical hyperbaric oxygen chamber for wound care and related topical oxygen treatments, typically used in outpatient wound care clinics or ambulatory settings where single-patient disposable devices are applied at the bedside or in a procedure room.

For related coverage guidance, see recent payer policy updates: Salivary Hormone Testing, Parathyroid Hormone, Phosphorus, Calcium, and Magnesium Testing, Bone Turnover Markers Testing.