Exposure to welding light (arc), sequela

This code indicates a long-term or residual effect resulting from a past exposure to welding light, specifically an electric arc. These sequelae are chronic conditions that persist after the initial acute injury from the light exposure has resolved. Examples include chronic photokeratitis, corneal scarring, or persistent vision disturbances.

Use this code when documenting a current condition that is a direct consequence of a previous welding light exposure. This applies when the acute injury has healed, but the patient is still experiencing lasting effects. It should be assigned in conjunction with a code for the specific sequela, such as a code for corneal opacity or chronic conjunctivitis.

• Always sequence this sequela code after the code identifying the specific residual condition.
• Ensure the medical record clearly links the current condition to a past welding light exposure.
• Do not use this code for acute injuries from welding light; use the appropriate acute injury code from the T59 category instead.