Corrosion of left eyelid and periocular area, sequela

This code signifies a permanent or long-term complication resulting from a chemical burn to the left eyelid and the surrounding tissues of the eye. This could include scarring, disfigurement, or functional impairment that persists after the acute injury has healed. The "sequela" indicates that the initial corrosive injury occurred in the past and the current condition is a lasting effect.

Use this code when documenting a patient presenting with a chronic or residual condition of the left eyelid or periocular area that is directly attributable to a previous chemical burn. This applies when the acute phase of the corrosion has passed, and the patient is being treated for the ongoing effects. Examples include chronic ectropion, entropion, or corneal damage due to chemical exposure.

• Always ensure documentation clearly links the current condition to a past corrosive injury.
• Do not use this code for acute chemical burns; those require codes from the T26.51-T26.59 range without the "S" seventh character.
• Consider additional codes for specific sequelae, such as scarring (L90.5) or functional impairment, if detailed in the medical record.