Exposure to high and low air pressure and changes in air pressure

Coding rules (TT06)

• ●Cannot be used as primary diagnosis

Coding guidance (WHO 2019)

Incl.: high air pressure from rapid descent in water reduction in atmospheric pressure while surfacing from: deep-water diving underground residence or prolonged visit at high altitude as the cause of: anoxia barodontalgia barotitis hypoxia mountain sickness sudden change in air pressure in aircraft during ascent or descent