Expsr to unsp man-made visible and ultraviolet light, sqla

This code signifies long-term health effects or complications arising from exposure to man-made visible or ultraviolet light, where the specific source or type of light is not documented. These sequelae could manifest as chronic skin conditions, ocular damage, or other persistent issues that developed after the initial exposure.

Apply this code when a patient presents with a current condition clearly documented as a sequela of a past, unspecified exposure to man-made visible or UV light. This is appropriate when the initial injury or acute exposure event is no longer being treated, but its lasting effects are. For instance, chronic photokeratitis or persistent skin hyperpigmentation attributed to an old, undocumented artificial light exposure.

• Always sequence this code after the code(s) for the specific sequela being treated.
• Only use this code when the type of man-made light (e.g., welding arc, tanning bed) is not specified in the medical record.
• Ensure documentation explicitly links the current condition to a past exposure and indicates the "sequela" nature of the presentation.