In simple words: This code represents a burn on the knee, where the depth of the burn isn't specified.

Burn of unspecified degree of knee.This code indicates a burn injury to the knee, but the specific degree of the burn (first, second, or third) is not documented.

Example 1: A patient presents to the emergency department with a burn injury to their knee after accidentally touching a hot stove. The physician assesses the burn and determines it to be of unspecified degree., A patient is involved in a house fire and sustains burns to various parts of their body, including the knee. The documentation specifies the degree of burns for other areas, but not for the knee., A patient spills hot coffee on their lap, resulting in a burn to the knee. The extent of the burn is not immediately clear.

Documentation should include the location of the burn (knee), the cause of the burn, and any associated signs and symptoms. Although the degree might be unspecified, any available information about the depth and characteristics of the burn should be noted.If known, the size and extent of the burn should be documented, possibly using the rule of nines to estimate body surface area involvement.Additional external cause codes (e.g., cause of the burn, place of occurrence) should also be included.

** If the degree of the burn is later determined, the appropriate code specifying the degree should be used.If the burn involves other parts of the lower leg, additional codes should be used. For any associated injuries (e.g., fractures, nerve damage), assign additional codes.