Burn of third degree of nose (septum), subsequent encounter

This code signifies a severe, full-thickness burn affecting the nasal septum, which is the cartilage and bone dividing the nostrils. A third-degree burn involves destruction of the epidermis, dermis, and underlying tissues, often appearing white, leathery, or charred, with nerve damage resulting in little to no pain sensation. The "subsequent encounter" designation indicates that the patient is receiving follow-up care for this specific burn, such as wound care, debridement, or skin grafting, after the initial treatment phase.

Apply this code when documenting ongoing treatment for a patient who previously sustained a third-degree burn to the nasal septum. This includes visits for dressing changes, monitoring for infection, surgical debridement of necrotic tissue, or preparation for and execution of reconstructive procedures like skin grafts or flaps. It is appropriate for any encounter following the initial acute care for the burn.

• Ensure documentation clearly specifies the nasal septum as the burn site and confirms the third-degree classification.
• Verify that the encounter is for follow-up care, not the initial treatment of the burn, to justify the "D" seventh character.
• Always code additional external cause codes (e.g., X00-X19) to describe the circumstances of the burn.