Burn of second degree of unspecified thumb (nail), sequela

This code signifies a second-degree burn affecting an unspecified thumb, including the nail, where the patient is presenting for treatment of a late effect or complication of the original burn injury. A second-degree burn involves damage to the epidermis and part of the dermis, typically presenting with blistering, pain, and redness. The "sequela" designation indicates that the acute phase of the burn has passed, and the current encounter addresses a residual condition.

Use this code when a patient presents for follow-up care related to a complication or long-term effect of a previously sustained second-degree burn to an unspecified thumb. Examples include treatment for scar contracture, chronic pain, nerve damage, or impaired function directly resulting from the original burn. This code is appropriate when the initial burn injury is no longer active or acute.

• Always assign an external cause code (V00-Y99) in conjunction with this code to describe the circumstances of the original burn injury.
• Ensure documentation clearly supports that the current encounter is for a sequela, not an acute burn.
• Specify laterality (left or right thumb) if known and documented, as more specific codes exist for those scenarios.