Expsr to oth man-made visible and ultraviolet light, sequela

This code indicates a long-term or residual effect resulting from a past exposure to various types of man-made visible or ultraviolet light sources. These sequelae can manifest as chronic skin conditions, persistent eye damage, or other lasting health issues that developed after the initial exposure. It signifies that the acute injury or immediate effects have resolved, but a permanent consequence remains.

Use this code when documenting conditions such as chronic actinic keratosis, persistent photokeratitis, or cataracts that are definitively linked to prior occupational or recreational exposure to artificial UV lamps, welding arcs, or other intense visible light sources. This code is appropriate when the patient presents for treatment of these lasting effects, not for the initial injury.

• Always use in conjunction with a code identifying the specific sequela (e.g., a code for cataracts, chronic dermatitis).
• Ensure documentation clearly links the current condition to a past exposure to man-made visible or ultraviolet light.
• Do not use for acute injuries or immediate effects of light exposure; those require codes from the T series.