Clinical Indications for Hyperbaric Oxygen Therapy

Hyperbaric consultation may be appropriate when osteomyelitis persists or recurs despite appropriate conventional treatment.

Situations may include:

• Chronic osteomyelitis that has failed surgery and antibiotics
• Recurrent infection after previous treatment
• Progressive infection despite appropriate antimicrobial therapy
• Severe or extensive osteomyelitis
• Spinal, cranial, or sternal osteomyelitis
• Cases in which extensive surgical debridement carries substantial risk
• Osteomyelitis associated with an advanced diabetic foot wound

Current UHMS guidance notes that patients who demonstrate no significant improvement or worsening despite an appropriate course of combined medical and surgical treatment may be considered refractory.

HBOT as Part of Multidisciplinary Care

Successful treatment of refractory osteomyelitis usually requires coordinated management.

Treatment may include:

• Surgical debridement of infected or necrotic bone
• Culture-directed antimicrobial therapy
• Management or removal of infected hardware when appropriate
• Correction of vascular insufficiency
• Wound care
• Glycemic optimization
• Nutritional support
• Reconstruction when necessary

HBOT is generally most effective when coordinated with surgical debridement and antimicrobial treatment rather than used independently.

Care may involve orthopedic surgery, infectious disease, wound care, vascular surgery, podiatry, plastic surgery, and hyperbaric medicine.

Clinical Evidence and Guidelines

Refractory osteomyelitis is recognized by the Undersea & Hyperbaric Medical Society as an accepted indication for adjunctive HBOT.

No definitive randomized clinical trials have established the effectiveness of HBOT for refractory osteomyelitis. The evidence consists primarily of animal studies, case series, prospective nonrandomized studies, retrospective studies, and clinical experience.

Available evidence suggests that adding HBOT to appropriate surgical and antimicrobial treatment may improve infection resolution in selected patients whose osteomyelitis has previously failed conventional treatment.

UHMS guidance emphasizes that the best results generally occur when HBOT is combined with culture-directed antibiotics and appropriate surgical debridement.

Medicare Coverage

Chronic refractory osteomyelitis is specifically listed as a covered condition under the Centers for Medicare & Medicaid Services National Coverage Determination for Hyperbaric Oxygen Therapy (NCD 20.29).

CMS defines the covered indication as:

Chronic refractory osteomyelitis, unresponsive to conventional medical and surgical management.

Coverage therefore requires documentation demonstrating that the infection is refractory to appropriate conventional treatment.

Individual documentation, coding, medical necessity, facility, and payer requirements should also be reviewed.

When to Refer

Consider hyperbaric medicine consultation when a patient has:

• Persistent osteomyelitis despite appropriate antibiotics
• Recurrent osteomyelitis after previous treatment
• Continued infection despite surgical debridement
• Progressive bone infection
• Osteomyelitis involving the spine, skull, or sternum
• Significant risk associated with additional extensive surgery
• A complex diabetic wound with associated osteomyelitis

HBOT should be used as an adjunct to appropriate infection control, surgical management, and antimicrobial therapy—not as a replacement for them.