Exposure to prolonged high air pressure, sequela

This code signifies a long-term health condition or complication resulting from a past exposure to sustained high atmospheric pressure. This typically involves residual effects on various body systems, such as the auditory, neurological, or musculoskeletal systems, that manifest after the initial acute exposure has resolved.

Apply this code when documenting chronic health issues directly attributable to a history of prolonged high air pressure exposure, such as in divers or caisson workers. This code is appropriate for conditions like persistent barotrauma-related hearing loss, avascular necrosis, or neurological deficits that are sequelae of decompression sickness.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past exposure to prolonged high air pressure.
• This code includes the "S" for sequela, indicating a late effect, and should not be used for acute exposure.