CPT® Code 99183 is used to report physician or qualified healthcare professional attendance and supervision of hyperbaric oxygen therapy (HBOT) for a patient during a treatment session. Hyperbaric oxygen therapy involves placing the patient in a pressurized chamber where they breathe 100% oxygen to promote healing by increasing oxygen delivery to tissues. This therapy is commonly used for wound healing, decompression sickness, carbon monoxide poisoning, and other medical conditions.
This code represents the professional services for supervision of the hyperbaric oxygen therapy session, not the facility or equipment fees.
Key Facts About CPT® 99183
Service type: Physician supervision service
Provider type: Physicians and qualified healthcare professionals trained in hyperbaric medicine
Medical services included: Yes, attendance and supervision of hyperbaric oxygen therapy session
Session type: Hyperbaric oxygen therapy treatment session
Billing unit: Per session
Common clinical indications:
- Chronic non-healing wounds
- Diabetic foot ulcers
- Radiation tissue damage
- Carbon monoxide poisoning
- Decompression sickness
- Gas embolism
- Severe infections such as necrotizing soft tissue infections
When to Use CPT® 99183
CPT 99183 is appropriate when:
- A physician or qualified healthcare professional supervises a hyperbaric oxygen therapy session
- The provider is present and immediately available during the therapy session
- The therapy is medically necessary for treatment of an approved condition
- The service represents professional supervision, not facility charges
Examples:
- Supervising HBOT for a patient with a diabetic foot ulcer
- Monitoring a patient receiving hyperbaric oxygen therapy for radiation tissue injury
- Supervising treatment for a patient with carbon monoxide poisoning
- Providing physician oversight during a scheduled HBOT session
Documentation Requirements
To support CPT 99183 billing, documentation should include:
- Patient identifiers and date of service
- Medical indication for hyperbaric oxygen therapy
- Confirmation of physician attendance and supervision during the session
- Duration and details of the HBOT session
- Patient response to treatment
- Provider credentials and signature
Complete documentation ensures compliance, supports reimbursement, and supports continuity of care.
Reimbursement and Coding Considerations
- CPT 99183 is billed per hyperbaric oxygen therapy session
- This code represents physician supervision only; facility and technical components are billed separately
- The provider must be present and immediately available during treatment
- Coverage is typically limited to approved medical indications
- Verify payer-specific policies for hyperbaric oxygen therapy coverage
Proper coding and documentation help ensure accurate reimbursement and compliance.
How OptiMantra Supports Hyperbaric Oxygen Therapy Documentation and Billing
OptiMantra’s integrated EMR and practice management system simplifies documentation and billing for CPT 99183:
With OptiMantra, providers can:
- Document HBOT session supervision and clinical indications
- Record treatment session details and patient response
- Link HBOT sessions to wound care or treatment plans
- Maintain longitudinal treatment records for ongoing care
- Support compliant, audit-ready billing codes for hyperbaric oxygen therapy supervision
By centralizing HBOT documentation and billing, OptiMantra helps practices improve efficiency, ensure compliance, and optimize reimbursement.
Try OptiMantra for free here!
Disclaimer: CPT® codes are maintained by the American Medical Association. This guide is for informational purposes only and does not replace official coding guidelines or payer policies.
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