Burn of third degree of right thumb (nail), sequela

This code signifies a third-degree burn specifically affecting the right thumb, including the nail. A third-degree burn involves full-thickness tissue destruction, extending through the epidermis and dermis, and potentially into subcutaneous tissue, muscle, or bone. The "sequela" indicator denotes that this code is used for complications or conditions that arise as a direct result of the original burn, after the initial acute healing phase.

This code is appropriate for documenting long-term effects, complications, or late-stage treatment related to a previously sustained third-degree burn of the right thumb. Examples include scar contractures, chronic pain, non-healing ulcers, or functional impairment requiring reconstructive surgery or ongoing therapy after the initial burn treatment has concluded. It should not be used for the initial encounter or active treatment of the acute burn.

• Always use this code as a secondary diagnosis, following a code that describes the specific sequela (e.g., scar, contracture).
• Ensure documentation clearly indicates the burn was third-degree and specifically involved the right thumb.
• Verify that the encounter is for the long-term effects or complications of the burn, not the acute injury.