Glossary
Decompression sickness
Illness from nitrogen bubbles forming after rapid ascent from depth.
Decompression sickness ("the bends") occurs when dissolved nitrogen forms bubbles in tissue after too-rapid ascent from diving. Recompression in a hyperbaric chamber is its definitive treatment — the origin of hyperbaric medicine.
More terms
NCD 20.29
The Medicare National Coverage Determination that governs HBOT coverage.
Wagner grade
A classification system for the severity of diabetic foot ulcers.
Hypoxia
A shortage of oxygen in tissue — the problem HBOT aims to correct.
CPT 99183
The billing code for physician supervision of an HBOT session.