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. S83 Dislocation and sprain of joints and ligaments of knee

    Includes:

    • avulsion of joint or ligament of knee
    • laceration of cartilage, joint or ligament of knee
    • sprain of cartilage, joint or ligament of knee
    • traumatic hemarthrosis of joint or ligament of knee
    • traumatic rupture of joint or ligament of knee
    • traumatic subluxation of joint or ligament of knee
    • traumatic tear of joint or ligament of knee

    Excludes1

    • derangement of patella (M22.0-M22.3)
    • injury of patellar ligament (tendon) (S76.1-)
    • internal derangement of knee (M23.-)
    • old dislocation of knee (M24.36)
    • pathological dislocation of knee (M24.36)
    • recurrent dislocation of knee (M22.0)

    Excludes2

    • strain of muscle, fascia and tendon of lower leg (S86.-)

    The appropriate 7th character is to be added to each code from category S83

    • A - initial encounter
    • D - subsequent encounter
    • S - sequela
    1. S83.0 Subluxation and dislocation of patella

      1. S83.00 Unspecified subluxation and dislocation of patella

        • S83.001 Unspecified subluxation of right patella
        • S83.002 Unspecified subluxation of left patella
        • S83.003 Unspecified subluxation of unspecified patella
        • S83.004 Unspecified dislocation of right patella
        • S83.005 Unspecified dislocation of left patella
        • S83.006 Unspecified dislocation of unspecified patella
      2. S83.01 Lateral subluxation and dislocation of patella

        • S83.011 Lateral subluxation of right patella
        • S83.012 Lateral subluxation of left patella
        • S83.013 Lateral subluxation of unspecified patella
        • S83.014 Lateral dislocation of right patella
        • S83.015 Lateral dislocation of left patella
        • S83.016 Lateral dislocation of unspecified patella
      3. S83.09 Other subluxation and dislocation of patella

        • S83.091 Other subluxation of right patella
        • S83.092 Other subluxation of left patella
        • S83.093 Other subluxation of unspecified patella
        • S83.094 Other dislocation of right patella
        • S83.095 Other dislocation of left patella
        • S83.096 Other dislocation of unspecified patella
    2. S83.1 Subluxation and dislocation of knee

      1. S83.10 Unspecified subluxation and dislocation of knee

        • S83.101 Unspecified subluxation of right knee
        • S83.102 Unspecified subluxation of left knee
        • S83.103 Unspecified subluxation of unspecified knee
        • S83.104 Unspecified dislocation of right knee
        • S83.105 Unspecified dislocation of left knee
        • S83.106 Unspecified dislocation of unspecified knee
      2. S83.11 Anterior subluxation and dislocation of proximal end of tibia

        Inclusion term(s):

        • Posterior subluxation and dislocation of distal end of femur
        • S83.111 Anterior subluxation of proximal end of tibia, right knee
        • S83.112 Anterior subluxation of proximal end of tibia, left knee
        • S83.113 Anterior subluxation of proximal end of tibia, unspecified knee
        • S83.114 Anterior dislocation of proximal end of tibia, right knee
        • S83.115 Anterior dislocation of proximal end of tibia, left knee
        • S83.116 Anterior dislocation of proximal end of tibia, unspecified knee
      3. S83.12 Posterior subluxation and dislocation of proximal end of tibia

        Inclusion term(s):

        • Anterior dislocation of distal end of femur
        • S83.121 Posterior subluxation of proximal end of tibia, right knee
        • S83.122 Posterior subluxation of proximal end of tibia, left knee
        • S83.123 Posterior subluxation of proximal end of tibia, unspecified knee
        • S83.124 Posterior dislocation of proximal end of tibia, right knee
        • S83.125 Posterior dislocation of proximal end of tibia, left knee
        • S83.126 Posterior dislocation of proximal end of tibia, unspecified knee
      4. S83.13 Medial subluxation and dislocation of proximal end of tibia

        • S83.131 Medial subluxation of proximal end of tibia, right knee
        • S83.132 Medial subluxation of proximal end of tibia, left knee
        • S83.133 Medial subluxation of proximal end of tibia, unspecified knee
        • S83.134 Medial dislocation of proximal end of tibia, right knee
        • S83.135 Medial dislocation of proximal end of tibia, left knee
        • S83.136 Medial dislocation of proximal end of tibia, unspecified knee
      5. S83.14 Lateral subluxation and dislocation of proximal end of tibia

        • S83.141 Lateral subluxation of proximal end of tibia, right knee
        • S83.142 Lateral subluxation of proximal end of tibia, left knee
        • S83.143 Lateral subluxation of proximal end of tibia, unspecified knee
        • S83.144 Lateral dislocation of proximal end of tibia, right knee
        • S83.145 Lateral dislocation of proximal end of tibia, left knee
        • S83.146 Lateral dislocation of proximal end of tibia, unspecified knee
      6. S83.19 Other subluxation and dislocation of knee

        • S83.191 Other subluxation of right knee
        • S83.192 Other subluxation of left knee
        • S83.193 Other subluxation of unspecified knee
        • S83.194 Other dislocation of right knee
        • S83.195 Other dislocation of left knee
        • S83.196 Other dislocation of unspecified knee
    3. S83.2 Tear of meniscus, current injury

      1. S83.20 Tear of unspecified meniscus, current injury

        Inclusion term(s):

        • Tear of meniscus of knee NOS
        • S83.200 Bucket-handle tear of unspecified meniscus, current injury, right knee
        • S83.201 Bucket-handle tear of unspecified meniscus, current injury, left knee
        • S83.202 Bucket-handle tear of unspecified meniscus, current injury, unspecified knee
        • S83.203 Other tear of unspecified meniscus, current injury, right knee
        • S83.204 Other tear of unspecified meniscus, current injury, left knee
        • S83.205 Other tear of unspecified meniscus, current injury, unspecified knee
        • S83.206 Unspecified tear of unspecified meniscus, current injury, right knee
        • S83.207 Unspecified tear of unspecified meniscus, current injury, left knee
        • S83.209 Unspecified tear of unspecified meniscus, current injury, unspecified knee
      2. S83.21 Bucket-handle tear of medial meniscus, current injury

        • S83.211 Bucket-handle tear of medial meniscus, current injury, right knee
        • S83.212 Bucket-handle tear of medial meniscus, current injury, left knee
        • S83.219 Bucket-handle tear of medial meniscus, current injury, unspecified knee
      3. S83.22 Peripheral tear of medial meniscus, current injury

        • S83.221 Peripheral tear of medial meniscus, current injury, right knee
        • S83.222 Peripheral tear of medial meniscus, current injury, left knee
        • S83.229 Peripheral tear of medial meniscus, current injury, unspecified knee
      4. S83.23 Complex tear of medial meniscus, current injury

        • S83.231 Complex tear of medial meniscus, current injury, right knee
        • S83.232 Complex tear of medial meniscus, current injury, left knee
        • S83.239 Complex tear of medial meniscus, current injury, unspecified knee
      5. S83.24 Other tear of medial meniscus, current injury

        • S83.241 Other tear of medial meniscus, current injury, right knee
        • S83.242 Other tear of medial meniscus, current injury, left knee
        • S83.249 Other tear of medial meniscus, current injury, unspecified knee
      6. S83.25 Bucket-handle tear of lateral meniscus, current injury

        • S83.251 Bucket-handle tear of lateral meniscus, current injury, right knee
        • S83.252 Bucket-handle tear of lateral meniscus, current injury, left knee
        • S83.259 Bucket-handle tear of lateral meniscus, current injury, unspecified knee
      7. S83.26 Peripheral tear of lateral meniscus, current injury

        • S83.261 Peripheral tear of lateral meniscus, current injury, right knee
        • S83.262 Peripheral tear of lateral meniscus, current injury, left knee
        • S83.269 Peripheral tear of lateral meniscus, current injury, unspecified knee
      8. S83.27 Complex tear of lateral meniscus, current injury

        • S83.271 Complex tear of lateral meniscus, current injury, right knee
        • S83.272 Complex tear of lateral meniscus, current injury, left knee
        • S83.279 Complex tear of lateral meniscus, current injury, unspecified knee
      9. S83.28 Other tear of lateral meniscus, current injury

        • S83.281 Other tear of lateral meniscus, current injury, right knee
        • S83.282 Other tear of lateral meniscus, current injury, left knee
        • S83.289 Other tear of lateral meniscus, current injury, unspecified knee
    4. S83.3 Tear of articular cartilage of knee, current

      1. S83.30 Tear of articular cartilage of unspecified knee, current

      2. S83.31 Tear of articular cartilage of right knee, current

      3. S83.32 Tear of articular cartilage of left knee, current

    5. S83.4 Sprain of collateral ligament of knee

      1. S83.40 Sprain of unspecified collateral ligament of knee

        • S83.401 Sprain of unspecified collateral ligament of right knee
        • S83.402 Sprain of unspecified collateral ligament of left knee
        • S83.409 Sprain of unspecified collateral ligament of unspecified knee
      2. S83.41 Sprain of medial collateral ligament of knee

        Inclusion term(s):

        • Sprain of tibial collateral ligament
        • S83.411 Sprain of medial collateral ligament of right knee
        • S83.412 Sprain of medial collateral ligament of left knee
        • S83.419 Sprain of medial collateral ligament of unspecified knee
      3. S83.42 Sprain of lateral collateral ligament of knee

        Inclusion term(s):

        • Sprain of fibular collateral ligament
        • S83.421 Sprain of lateral collateral ligament of right knee
        • S83.422 Sprain of lateral collateral ligament of left knee
        • S83.429 Sprain of lateral collateral ligament of unspecified knee
    6. S83.5 Sprain of cruciate ligament of knee

      1. S83.50 Sprain of unspecified cruciate ligament of knee

        • S83.501 Sprain of unspecified cruciate ligament of right knee
        • S83.502 Sprain of unspecified cruciate ligament of left knee
        • S83.509 Sprain of unspecified cruciate ligament of unspecified knee
      2. S83.51 Sprain of anterior cruciate ligament of knee

        • S83.511 Sprain of anterior cruciate ligament of right knee
        • S83.512 Sprain of anterior cruciate ligament of left knee
        • S83.519 Sprain of anterior cruciate ligament of unspecified knee
      3. S83.52 Sprain of posterior cruciate ligament of knee

        • S83.521 Sprain of posterior cruciate ligament of right knee
        • S83.522 Sprain of posterior cruciate ligament of left knee
        • S83.529 Sprain of posterior cruciate ligament of unspecified knee
    7. S83.6 Sprain of the superior tibiofibular joint and ligament

      1. S83.60 Sprain of the superior tibiofibular joint and ligament, unspecified knee

      2. S83.61 Sprain of the superior tibiofibular joint and ligament, right knee

      3. S83.62 Sprain of the superior tibiofibular joint and ligament, left knee

    8. S83.8 Sprain of other specified parts of knee

      1. S83.8X Sprain of other specified parts of knee

        • S83.8X1 Sprain of other specified parts of right knee
        • S83.8X2 Sprain of other specified parts of left knee
        • S83.8X9 Sprain of other specified parts of unspecified knee
    9. S83.9 Sprain of unspecified site of knee

      1. S83.90 Sprain of unspecified site of unspecified knee

      2. S83.91 Sprain of unspecified site of right knee

      3. S83.92 Sprain of unspecified site of left knee

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.