Medicare HBOT Coverage: The 14 Approved Indications

Last updated: May 2026

Disclaimer: This article is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before starting any treatment.

Affiliate Disclosure: We may earn a commission when you purchase through our links. This does not affect our editorial independence.

Quick Answer

Medicare covers hyperbaric oxygen therapy (HBOT) for 14 specific conditions, as outlined by the Centers for Medicare & Medicaid Services (CMS) National Coverage Determination (NCD) 20.29.
A single HBOT session can cost around $350, or $320 per session when buying a package of 10.
Medicare will likely provide coverage if your condition is one of the 14 FDA-approved indications.
Off-label conditions for HBOT are generally not covered by insurance, Medicaid, or Medicare.

Medicare provides coverage for hyperbaric oxygen therapy (HBOT) when it is used to treat 14 specific medical conditions. This coverage is detailed within the Centers for Medicare & Medicaid Services (CMS) National Coverage Determination (NCD) 20.29, which serves as the official guideline for what Medicare will pay for regarding HBOT. Understanding these specific indications is crucial for patients considering this treatment, especially given that a single HBOT session typically costs $350. We know that the decision to pursue HBOT involves significant investments in both time and finances, so knowing what Medicare covers can help guide your treatment journey and financial planning.

What Does Medicare Cover for Hyperbaric Oxygen Therapy?

Medicare covers hyperbaric oxygen therapy (HBOT) for 14 distinct medical conditions. These conditions are specifically detailed in the Centers for Medicare & Medicaid Services (CMS) National Coverage Determination (NCD) 20.29, which is a key document for understanding Medicare benefits. This NCD acts as the official guide, clarifying when HBOT services are considered medically necessary and therefore eligible for coverage. An official government website, Medicare.gov, confirms that hyperbaric oxygen therapy is among the services it may cover, reinforcing the importance of checking this specific NCD.

Understanding CMS National Coverage Determinations

The CMS National Coverage Determination (NCD) 20.29 is a comprehensive document that outlines the specific circumstances under which Medicare will cover hyperbaric oxygen therapy. These determinations are established by the Centers for Medicare & Medicaid Services, an official part of the United States government. The NCD ensures that healthcare providers and beneficiaries have a clear understanding of what treatments are covered across the nation. For HBOT, this means that while the therapy itself is recognized, its application must align precisely with the 14 approved indications to qualify for Medicare reimbursement. This structured approach helps to ensure that treatments are evidence-based and applied appropriately within the Medicare system.

Official Sources for Coverage Information

When researching Medicare coverage for HBOT, it is important to rely on official government sources. Websites like Medicare.gov are official government platforms, distinguished by their ".gov" domain, and they provide reliable information on coverage details. Similarly, the Medicare Coverage Database on CMS.gov offers direct access to National Coverage Determinations, including the critical NCD 20.29. These sites are designed to provide accurate and up-to-date information, helping beneficiaries and healthcare providers navigate the complexities of Medicare benefits. Relying on these official resources ensures that the information received about HBOT coverage is trustworthy and directly from the source.

The Scope of Medicare HBOT Coverage

Medicare's coverage for HBOT is not universal for all conditions that might benefit from the therapy. Instead, it is strictly limited to the 14 indications listed in NCD 20.29. This focus on specific, approved conditions means that if a patient's medical issue falls outside this list, Medicare will generally not provide coverage. This distinction is vital for patients to understand before beginning treatment, as it directly impacts financial planning. Hyperbaric Medical Solutions, for example, states that while they accept most insurance plans for HBOT, not all services, treatments, or conditions are eligible for coverage. This highlights the importance of inquiring about specific cases and verifying coverage for your condition. For a plain-English breakdown of how commercial plans treat each of those 14 conditions, see HBOT Insurance Coverage in 2026: 14 Approved Indications Decoded.

What are the 14 Medicare-Approved HBOT Indications?

Medicare approves hyperbaric oxygen therapy (HBOT) for 14 specific medical conditions, as detailed in the Centers for Medicare & Medicaid Services (CMS) National Coverage Determination (NCD) 20.29. These indications represent the conditions for which there is sufficient evidence of HBOT's effectiveness to warrant federal insurance coverage. The Undersea & Hyperbaric Medical Society (UHMS) also lists specific indications for HBOT, aligning with many of the conditions covered by Medicare. For example, one explicitly approved indication, as noted by Richard E. Moon, is "Hyperbaric Oxygen Therapy Indications: Air or Gas Embolism.". See the arterial gas embolism evidence atlas for the full study-by-study evidence breakdown.

Detailed Look at Covered Conditions

The 14 Medicare-approved indications for HBOT are comprehensive, addressing a range of medical issues from acute emergencies to chronic conditions. These conditions often involve compromised tissue healing or oxygen deprivation that HBOT can help alleviate. For instance, diabetic wounds of the lower extremities are a significant area of coverage. These types of wounds can be slow to heal and are a common complication of diabetes, making HBOT a crucial intervention for many patients. The therapy helps improve oxygen delivery to the affected tissues, promoting healing and reducing the risk of further complications.

Another covered indication involves compromised skin grafts and flaps. After certain surgeries, skin grafts or tissue flaps may not receive enough blood flow, leading to potential failure. HBOT can enhance oxygenation to these areas, increasing the chances of successful integration and healing. This is particularly important in reconstructive surgeries where the viability of the graft or flap is critical to the patient's recovery and outcome. See the compromised skin grafts and flaps evidence atlas for the full study-by-study evidence breakdown.

Chronic refractory osteomyelitis is also included among the approved conditions. This is a severe, persistent bone infection that has not responded to traditional treatments like antibiotics and surgery. HBOT can deliver high concentrations of oxygen to the infected bone, which can be toxic to anaerobic bacteria and can also enhance the effectiveness of antibiotics and the body's natural healing processes. The therapy offers a vital alternative for patients struggling with long-term bone infections.

The Role of the Undersea & Hyperbaric Medical Society (UHMS)

The Undersea & Hyperbaric Medical Society (UHMS) plays a significant role in identifying and endorsing conditions for which HBOT is beneficial. While Medicare's NCD 20.29 is the definitive list for coverage, the UHMS provides a broader list of indications, some of which align directly with Medicare's approved conditions. For example, the UHMS explicitly lists "Air or Gas Embolism" as a key indication for hyperbaric oxygen therapy, a point highlighted by Richard E. Moon. Air or gas embolism is a medical emergency where gas bubbles enter the bloodstream, potentially blocking blood flow to vital organs. HBOT helps to reduce the size of these bubbles and increase oxygen delivery to tissues, mitigating damage.

The Full List of Approved Indications

While the research provided focuses on a few specific examples, the overarching theme is that Medicare's coverage is strictly defined. Patients must ensure their condition falls within this list of 14 approved indications to receive coverage. This structured approach helps to ensure that HBOT is utilized for conditions where its efficacy is well-established and supported by clinical evidence. For those with conditions like diabetic wounds of the lower extremities, compromised skin grafts and flaps, and chronic refractory osteomyelitis, Medicare coverage provides access to a potentially life-saving or limb-saving therapy. It is always recommended to consult with a healthcare provider and check the official CMS NCD 20.29 directly for the complete and most current list of covered indications.

How Much Does Hyperbaric Oxygen Therapy Cost?

The cost of hyperbaric oxygen therapy (HBOT) is a significant factor for many patients considering this treatment. We understand that deciding to begin HBOT requires substantial investments in both time and finances. A screening exam for HBOT costs $150, but this amount may be credited back to you if you decide to proceed with treatment. When considering individual sessions, a single HBOT session typically costs $350.

Session Costs and Package Deals

For those requiring multiple treatments, which is common, there are often ways to reduce the per-session cost. We offer a discounted rate of $320 per session when purchasing a package of 10 sessions. This package option can lead to significant savings compared to paying for individual sessions. Optimally, medical HBOT treatments are done daily, Monday through Friday, meaning a patient could complete a 10-session package in just two weeks. The total number of treatments needed will vary depending on the condition being treated, but treatment plans usually range from 10 to 40 sessions. This means a full course of treatment could range from a few thousand dollars up to tens of thousands of dollars, making cost a primary consideration for many.

Initial Screening and Treatment Planning

Before starting HBOT, a screening exam is necessary to determine if the therapy is appropriate for your condition. This initial screening exam costs $150. If you decide to move forward with HBOT, this screening fee is often credited back towards your treatment costs. During this screening exam, a detailed treatment plan will be discussed, outlining the expected number of sessions needed for your specific case. This personalized approach helps patients understand the full scope of their treatment and the associated financial commitment. The range of 10 to 40 sessions for a typical treatment plan highlights the variability in treatment duration and overall cost.

Financial Considerations and Planning

Considering the potential costs, it becomes clear why understanding insurance coverage and payment options is so important. For example, Hyperbaric Medical Solutions accepts most insurance plans for HBOT, though they note that not all services, treatments, or conditions are eligible. This means even with insurance, patients should inquire about their specific case. For those whose conditions are not covered by insurance, or who prefer alternative payment methods, exploring options like Health Savings Accounts (HSA) or Flexible Spending Accounts (FSA) can be beneficial. These accounts allow individuals to use pre-tax dollars for medical expenses, including HBOT, which can help offset the out-of-pocket costs.

The total financial commitment for HBOT can be substantial, especially when considering the typical range of 10 to 40 sessions. If each session costs $350, a full course of 40 sessions would amount to $14,000 without any discounts or insurance coverage. Even with the discounted rate of $320 per session for a package of 10, a patient requiring 40 sessions would still be looking at $12,800. These figures underscore the importance of thorough financial planning and understanding all available payment and coverage options before committing to treatment.

Does Insurance Cover HBOT for Off-Label Conditions?

Insurance coverage for hyperbaric oxygen therapy (HBOT) is primarily determined by whether the treated condition falls under a list of approved indications. If a condition is one of the 14 FDA-approved indications, as recognized by Medicare and other major insurers, your insurance will likely provide coverage. However, when it comes to off-label conditions, coverage is generally not provided by insurance, Medicaid, or Medicare. This distinction is crucial for patients, as clinics that treat primarily off-label conditions often do not accept or file for insurance reimbursement.

Understanding On-Label vs. Off-Label Use

On-label use of HBOT refers to its application for conditions that have been specifically approved by regulatory bodies, such as the FDA in the United States, and subsequently recognized by insurance providers like Medicare. These are the 14 conditions outlined in the CMS National Coverage Determination 20.29. For these approved indications, there is a strong likelihood that insurance will cover the cost of treatment, especially if the treatment is provided at an in-network hospital.

In contrast, off-label conditions are those for which HBOT has not received official approval from regulatory bodies or major insurers. While there might be anecdotal evidence, ongoing research, or clinical practices suggesting benefit for these conditions, they do not meet the strict criteria for insurance coverage. This means that if a patient seeks HBOT for an off-label condition, they should expect to pay for the treatment out-of-pocket. For more details, see Medicare Coverage for Hyperbaric Oxygen Therapy.

The Challenge of Off-Label Coverage

The challenge for patients seeking HBOT for off-label conditions is that insurance carriers, including Medicare and Medicaid, typically do not cover these treatments. This is because insurers base their coverage decisions on established medical necessity and evidence-based guidelines, which are primarily met by the 14 approved indications. One clinic states that because they treat patients almost exclusively for off-label conditions, they do not accept or file for insurance reimbursement. They acknowledge that in the "very unlikely event" an insurance carrier might cover off-label treatments, they are happy to work with them, but it is a "rare case where that happens."

This reality means that patients must be prepared for the financial implications if their condition is not on the approved list. A single HBOT session costs $350, and treatment plans usually range from 10 to 40 sessions. Without insurance coverage, these costs can quickly accumulate, making it essential for patients to understand their specific coverage before starting therapy.

Navigating Insurance and Off-Label Treatments

For patients considering HBOT for an off-label condition, it is always advisable to directly contact their insurance provider to inquire about potential coverage, even if it is generally unlikely. While clinics may not file for reimbursement for off-label treatments, individual patient inquiries can sometimes reveal specific exceptions or pathways, though these are rare. Hyperbaric Medical Solutions notes that consultations are typically covered by insurance, which could be a first step in understanding if any aspect of your specific case might qualify for coverage, even if the treatment itself does not. However, the consistent message from providers and insurers is that the 14 FDA-approved, Medicare-covered indications are the primary criteria for reimbursement. This structure reinforces the importance of verifying your condition against the official list found in documents like the CMS National Coverage Determination on Hyperbaric Oxygen Therapy.

What Payment Options Are Available for HBOT?

When Medicare or other insurance does not cover hyperbaric oxygen therapy (HBOT), or for patients with high deductibles, several payment options are available to help manage the cost. Health Savings Accounts (HSA) and Flexible Spending Accounts (FSA) are commonly accepted for HBOT payments. These accounts allow individuals to use pre-tax money for qualified medical expenses, which can significantly reduce the out-of-pocket burden. For those needing to use these accounts, clinics can often provide a letter of medical necessity to support the use of HSA/FSA funds.

Utilizing Health Savings Accounts (HSAs) and Flexible Spending Accounts (FSAs)

HSAs and FSAs are valuable tools for covering medical expenses, including HBOT. These accounts are designed to help individuals save money on healthcare costs by allowing them to set aside pre-tax dollars. When paying for HBOT sessions, which can cost $350 for a single session or $320 per session with a package of 10, using an HSA or FSA can provide a tax advantage. The ability to use these accounts makes HBOT more accessible for many patients, even if their condition is not covered by traditional insurance plans. To ensure compliance with HSA/FSA rules, a letter of medical necessity can be provided by the clinic, documenting that the HBOT treatment is for a legitimate medical condition.

Financing Through CareCredit

Another significant payment option available is the CareCredit program. CareCredit is a health and wellness credit card specifically designed to help patients pay for healthcare expenses not covered by insurance. It offers flexible financing options, allowing patients to pay their charges over 12 months. This extended payment plan can make the financial burden of HBOT, which often involves 10 to 40 sessions, more manageable by spreading the cost over a year. It is important to note, however, that those paying with CareCredit are typically not eligible for any discount pricing, such as the $320 per session rate for a package of 10. This means patients opting for CareCredit might pay the full $350 per session, making it essential to weigh the benefits of financing against potential discounts.

Direct Payment and Payment Plans

For patients without insurance coverage or those opting not to use financing, direct payment is always an option. Many clinics are happy to discuss payment options and answer any questions patients may have. While a single HBOT session is $350, and treatment plans range from 10 to 40 sessions, direct payment allows patients to take advantage of any package discounts, like the $320 per session rate when purchasing 10 sessions. Some clinics may also offer their own internal payment plans or arrangements, though this would need to be discussed directly with the provider. The initial screening exam, costing $150, is an important first step where these financial discussions can take place, with the fee often credited back if treatment proceeds. This comprehensive approach to payment ensures that patients have various avenues to access necessary HBOT, even when traditional insurance coverage is not available. Further details on financing can be explored via programs like CareCredit.

Where Can You Get Medicare-Covered HBOT?

If your medical condition is among the 14 approved indications for hyperbaric oxygen therapy (HBOT) by Medicare, you can likely receive treatment at a hospital that is in-network with your Medicare plan. These facilities are equipped to provide the therapy under the guidelines set forth by the Centers for Medicare & Medicaid Services (CMS) National Coverage Determination (NCD) 20.29. Hyperbaric Medical Solutions, for example, states they accept most insurance plans for HBOT, which often includes Medicare for approved conditions.

In-Network Hospital Facilities

For Medicare beneficiaries, accessing covered HBOT typically means seeking treatment at an in-network hospital or a facility directly affiliated with one. These settings are most likely to have the necessary accreditation, equipment, and medical staff trained in hyperbaric medicine to meet Medicare's strict requirements. When your condition is on the approved list, such as diabetic wounds of the lower extremities or chronic refractory osteomyelitis, these hospital-based centers are your primary option for covered care. It is always recommended to verify with your specific Medicare plan and the treatment facility to confirm coverage details before starting therapy.

The Role of Private Clinics and Insurance Acceptance

While hospital settings are a primary source for Medicare-covered HBOT, some private clinics also accept insurance. Hyperbaric Medical Solutions, for instance, highlights that they accept most insurance plans for HBOT. However, they also clarify that while consultations are typically covered, not all services, treatments, or conditions are eligible. This means that even if a private clinic accepts your insurance, you must confirm that your specific condition is one of the 14 approved indications for Medicare coverage. If the clinic primarily treats off-label conditions, they may not file for insurance reimbursement, as off-label treatments are generally not covered by Medicare.

Verifying Coverage for Your Specific Case

Before undergoing HBOT, it is crucial to verify coverage for your specific medical case. This involves two key steps:

Confirming your condition: Ensure your diagnosis aligns with one of the 14 Medicare-approved indications listed in the CMS NCD 20.29. You can check to see if your condition is on the list here.
Contacting your provider and facility: Speak directly with your Medicare plan administrator and the chosen HBOT facility. They can provide precise details on what your plan covers, any out-of-pocket costs, and if the facility is in-network for the specific treatment required.

This diligent approach ensures that you understand the financial implications and can proceed with HBOT confidently, knowing what your Medicare plan will cover. For those whose conditions are not on the approved list, exploring alternative payment options such as HSAs, FSAs, or CareCredit becomes even more important.

Frequently Asked Questions

What are the 14 conditions Medicare covers for HBOT?

Medicare covers hyperbaric oxygen therapy (HBOT) for 14 specific medical conditions, as outlined in the Centers for Medicare & Medicaid Services (CMS) National Coverage Determination (NCD) 20.29. These conditions include, but are not limited to, air or gas embolism, diabetic wounds of the lower extremities, compromised skin grafts and flaps, and chronic refractory osteomyelitis. The Undersea & Hyperbaric Medical Society (UHMS) also lists indications like "Air or Gas Embolism," as noted by Richard E. Moon.

How much does a single HBOT session typically cost?

A single session of hyperbaric oxygen therapy typically costs $350. However, if you purchase a package of 10 sessions, the rate is discounted to $320 per session. There is also an initial screening exam that costs $150, which is often credited back to you if you proceed with treatment.

Does Medicare cover HBOT for conditions not on its approved list?

No, Medicare generally does not cover HBOT for conditions not on its approved list of 14 indications. These are considered "off-label" conditions, and insurance, Medicaid, or Medicare typically do not provide reimbursement for them. Clinics that primarily treat off-label conditions usually do not accept or file for insurance reimbursement.

Can I use my HSA or FSA for HBOT treatments?

Yes, you can use Health Savings Accounts (HSA) and Flexible Spending Accounts (FSA) for hyperbaric oxygen therapy payments. Many clinics accept these forms of payment. If needed, a letter of medical necessity can be provided to support the use of your HSA or FSA funds for your HBOT treatments.

What is the average number of HBOT sessions needed for treatment?

The number of HBOT treatments varies based on the individual condition and treatment plan. However, treatment plans usually range from 10 to 40 sessions. The specific number will be discussed during your screening exam to determine the optimal course of therapy for your needs.