Open wound of knee and lower leg

**Excludes1:** - open fracture of knee and lower leg (S82.-) - traumatic amputation of lower leg (S88.-)

**Excludes2:** - open wound of ankle and foot (S91.-)

**Code also:** - any associated wound infection

**7th character note:** - The appropriate 7th character is to be added to each code from category S81

**7th character:** - A: initial encounter - D: subsequent encounter - S: sequela