Excludes2

  • burns and corrosions (T20-T32)
  • frostbite (T33-T34)
  • injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)
  • insect bite or sting, venomous (T63.4)
  1. S81 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.-)

    The appropriate 7th character is to be added to each code from category S81

    • A - initial encounter
    • D - subsequent encounter
    • S - sequela
    1. S81.0 Open wound of knee

      1. S81.00 Unspecified open wound of knee

        • S81.001 Unspecified open wound, right knee
        • S81.002 Unspecified open wound, left knee
        • S81.009 Unspecified open wound, unspecified knee
      2. S81.01 Laceration without foreign body of knee

        • S81.011 Laceration without foreign body, right knee
        • S81.012 Laceration without foreign body, left knee
        • S81.019 Laceration without foreign body, unspecified knee
      3. S81.02 Laceration with foreign body of knee

        • S81.021 Laceration with foreign body, right knee
        • S81.022 Laceration with foreign body, left knee
        • S81.029 Laceration with foreign body, unspecified knee
      4. S81.03 Puncture wound without foreign body of knee

        • S81.031 Puncture wound without foreign body, right knee
        • S81.032 Puncture wound without foreign body, left knee
        • S81.039 Puncture wound without foreign body, unspecified knee
      5. S81.04 Puncture wound with foreign body of knee

        • S81.041 Puncture wound with foreign body, right knee
        • S81.042 Puncture wound with foreign body, left knee
        • S81.049 Puncture wound with foreign body, unspecified knee
      6. S81.05 Open bite of knee

        Inclusion term(s):

        • Bite of knee NOS
    2. S81.8 Open wound of lower leg

      1. S81.80 Unspecified open wound of lower leg

        • S81.801 Unspecified open wound, right lower leg
        • S81.802 Unspecified open wound, left lower leg
        • S81.809 Unspecified open wound, unspecified lower leg
      2. S81.81 Laceration without foreign body of lower leg

        • S81.811 Laceration without foreign body, right lower leg
        • S81.812 Laceration without foreign body, left lower leg
        • S81.819 Laceration without foreign body, unspecified lower leg
      3. S81.82 Laceration with foreign body of lower leg

        • S81.821 Laceration with foreign body, right lower leg
        • S81.822 Laceration with foreign body, left lower leg
        • S81.829 Laceration with foreign body, unspecified lower leg
      4. S81.83 Puncture wound without foreign body of lower leg

        • S81.831 Puncture wound without foreign body, right lower leg
        • S81.832 Puncture wound without foreign body, left lower leg
        • S81.839 Puncture wound without foreign body, unspecified lower leg
      5. S81.84 Puncture wound with foreign body of lower leg

        • S81.841 Puncture wound with foreign body, right lower leg
        • S81.842 Puncture wound with foreign body, left lower leg
        • S81.849 Puncture wound with foreign body, unspecified lower leg
      6. S81.85 Open bite of lower leg

        Inclusion term(s):

        • Bite of lower leg NOS
        • S81.851 Open bite, right lower leg
        • S81.852 Open bite, left lower leg
        • S81.859 Open bite, unspecified lower leg
Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.