Does Medicare Cover Hyperbaric Oxygen Therapy?
How to verify Medicare HBOT coverage, condition-specific criteria, provider requirements and patient costs.
Medicare covers chamber-based HBOT for specified conditions under National Coverage Determination 20.29. A diagnosis name alone does not establish eligibility, and a prescription does not guarantee payment.
Which conditions and criteria apply?
The NCD has 15 covered condition entries. Use the actual CMS list and its restrictions, rather than an FDA or UHMS indication list, to assess Medicare eligibility. It includes certain emergencies, refractory infections, radiation injuries, compromised grafts and qualifying diabetic lower-extremity wounds. It does not cover every chronic wound or every condition for which HBOT is used clinically.
For a diabetes-related lower-extremity wound, the NCD requires type I or II diabetes, Wagner grade III or higher and failure of adequate standard wound therapy. Adjunctive HBOT requires at least 30 days without measurable healing during standard care. Standard wound care must continue, with reassessment at least every 30 days; continued coverage requires measurable healing within each 30-day treatment period. A treating clinician must assess and document these criteria.
Check the provider and treatment setting
The NCD lists both physician-service and outpatient-hospital benefit categories. It does not establish a universal hospital-outpatient-only rule. Verify the actual facility, clinician, enrollment, supervision and billing requirements with Medicare or your plan. A provider listing on this website is not proof of participation or eligibility.
Confirm your costs before treatment
Ask for a written estimate that separates facility and professional charges, deductible, coinsurance and noncovered services. Medicare Advantage and supplemental insurance require plan-specific checks. This guide does not quote a current reimbursement rate or promise a fixed out-of-pocket amount.
Ask whether prior authorization or another coverage review is required for your particular plan and service. Keep the written coverage response and any denial or appeal instructions. Authorization and an estimate are not guarantees of final payment.
What is outside the policy?
NCD 20.29 excludes indications not listed in its covered section. TBI, Long COVID and general wellness are not covered indications under that NCD. Do not infer that a home chamber purchase or any investigational use is reimbursable from device clearance or an advertisement. Ask other insurers about their own current policies rather than assuming every payer has identical rules.
Related: insurance coverage and the condition-by-condition Medicare guide.
Frequently asked questions
Does Medicare cover hyperbaric oxygen therapy?
Medicare HBOT coverage depends on the condition-specific criteria in NCD 20.29 and applicable provider, documentation and billing requirements. Device clearance or a directory listing does not establish coverage. Confirm the diagnosis, treatment setting, provider participation, authorization requirements and expected costs with the treating clinician and your plan before scheduling.
Does every diabetic foot wound qualify?
No. NCD 20.29 specifies diabetes-related lower-extremity wounds, Wagner grade III or higher, failure of adequate standard care and further healing and reassessment requirements. Your clinician must establish eligibility.
Must HBOT be delivered only in a hospital outpatient department?
NCD 20.29 includes physician-service and outpatient-hospital benefit categories. Confirm all requirements for the specific provider and setting with Medicare or your plan.
This information does not provide a diagnosis, treatment plan, legal opinion or guarantee of insurance payment. Consult the treating clinician and relevant insurer about your situation.