Diseases of the musculoskeletal system and connective tissue

• Other joint disorders (M20-M25)
  • Internal derangement of knee (M23)
    • M23 - Internal derangement of knee
    • M23.0 - Cystic meniscus
    • M23.00 - Cystic meniscus, unspecified meniscus
    • M23.000 - Cystic meniscus, unspecified lateral meniscus, right knee
    • M23.001 - Cystic meniscus, unspecified lateral meniscus, left knee
    • M23.002 - Cystic meniscus, unsp lateral meniscus, unspecified knee
    • M23.003 - Cystic meniscus, unspecified medial meniscus, right knee
    • M23.004 - Cystic meniscus, unspecified medial meniscus, left knee
    • M23.005 - Cystic meniscus, unsp medial meniscus, unspecified knee
    • M23.006 - Cystic meniscus, unspecified meniscus, right knee
    • M23.007 - Cystic meniscus, unspecified meniscus, left knee
    • M23.009 - Cystic meniscus, unspecified meniscus, unspecified knee
    • M23.01 - Cystic meniscus, anterior horn of medial meniscus
    • M23.011 - Cystic meniscus, anterior horn of medial meniscus, r knee
    • M23.012 - Cystic meniscus, anterior horn of medial meniscus, left knee
    • M23.019 - Cystic meniscus, anterior horn of medial meniscus, unsp knee
    • M23.02 - Cystic meniscus, posterior horn of medial meniscus
    • M23.021 - Cystic meniscus, posterior horn of medial meniscus, r knee
    • M23.022 - Cystic meniscus, posterior horn of medial meniscus, l knee
    • M23.029 - Cystic meniscus, post horn of medial meniscus, unsp knee
    • M23.03 - Cystic meniscus, other medial meniscus
    • M23.031 - Cystic meniscus, other medial meniscus, right knee
    • M23.032 - Cystic meniscus, other medial meniscus, left knee
    • M23.039 - Cystic meniscus, other medial meniscus, unspecified knee
    • M23.04 - Cystic meniscus, anterior horn of lateral meniscus
    • M23.041 - Cystic meniscus, anterior horn of lat mensc, right knee
    • M23.042 - Cystic meniscus, anterior horn of lat mensc, left knee
    • M23.049 - Cystic meniscus, anterior horn of lat mensc, unsp knee
    • M23.05 - Cystic meniscus, posterior horn of lateral meniscus
    • M23.051 - Cystic meniscus, posterior horn of lat mensc, right knee
    • M23.052 - Cystic meniscus, posterior horn of lat mensc, left knee
    • M23.059 - Cystic meniscus, posterior horn of lat mensc, unsp knee
    • M23.06 - Cystic meniscus, other lateral meniscus
    • M23.061 - Cystic meniscus, other lateral meniscus, right knee
    • M23.062 - Cystic meniscus, other lateral meniscus, left knee
    • M23.069 - Cystic meniscus, other lateral meniscus, unspecified knee
    • M23.2 - Derangement of meniscus due to old tear or injury
    • M23.20 - Derangement of unsp meniscus due to old tear or injury
    • M23.200 - Derang of unsp lat mensc due to old tear/inj, right knee
    • M23.201 - Derangement of unsp lat mensc due to old tear/inj, left knee
    • M23.202 - Derangement of unsp lat mensc due to old tear/inj, unsp knee
    • M23.203 - Derang of unsp medial meniscus due to old tear/inj, r knee
    • M23.204 - Derang of unsp medial meniscus due to old tear/inj, l knee
    • M23.205 - Derang of unsp medial mensc due to old tear/inj, unsp knee
    • M23.206 - Derangement of unsp meniscus due to old tear/inj, right knee
    • M23.207 - Derangement of unsp meniscus due to old tear/inj, left knee
    • M23.209 - Derangement of unsp meniscus due to old tear/inj, unsp knee
    • M23.21 - Derang of ant horn of medial meniscus due to old tear/inj
    • M23.211 - Derang of ant horn of medial mensc d/t old tear/inj, r knee
    • M23.212 - Derang of ant horn of medial mensc d/t old tear/inj, l knee
    • M23.219 - Derang of ant horn of med mensc d/t old tear/inj, unsp knee
    • M23.22 - Derang of post horn of medial meniscus due to old tear/inj
    • M23.221 - Derang of post horn of medial mensc d/t old tear/inj, r knee
    • M23.222 - Derang of post horn of medial mensc d/t old tear/inj, l knee
    • M23.229 - Derang of post horn of med mensc d/t old tear/inj, unsp knee
    • M23.23 - Derangement of oth medial meniscus due to old tear or injury
    • M23.231 - Derang of medial meniscus due to old tear/inj, right knee
    • M23.232 - Derang of medial meniscus due to old tear/inj, left knee
    • M23.239 - Derang of medial meniscus due to old tear/inj, unsp knee
    • M23.24 - Derang of anterior horn of lat mensc due to old tear/inj
    • M23.241 - Derang of ant horn of lat mensc due to old tear/inj, r knee
    • M23.242 - Derang of ant horn of lat mensc due to old tear/inj, l knee
    • M23.249 - Derang of ant horn of lat mensc d/t old tear/inj, unsp knee
    • M23.25 - Derang of posterior horn of lat mensc due to old tear/inj
    • M23.251 - Derang of post horn of lat mensc due to old tear/inj, r knee
    • M23.252 - Derang of post horn of lat mensc due to old tear/inj, l knee
    • M23.259 - Derang of post horn of lat mensc d/t old tear/inj, unsp knee
    • M23.26 - Derangement of lateral meniscus due to old tear or injury
    • M23.261 - Derangement of lat mensc due to old tear/inj, right knee
    • M23.262 - Derangement of lat mensc due to old tear/inj, left knee
    • M23.269 - Derangement of lat mensc due to old tear/inj, unsp knee
    • M23.3 - Other meniscus derangements
    • M23.30 - Other meniscus derangements, unspecified meniscus
    • M23.300 - Oth meniscus derangements, unsp lateral meniscus, right knee
    • M23.301 - Oth meniscus derangements, unsp lateral meniscus, left knee
    • M23.302 - Oth meniscus derangements, unsp lateral meniscus, unsp knee
    • M23.303 - Oth meniscus derangements, unsp medial meniscus, right knee
    • M23.304 - Other meniscus derangements, unsp medial meniscus, left knee
    • M23.305 - Other meniscus derangements, unsp medial meniscus, unsp knee
    • M23.306 - Other meniscus derangements, unsp meniscus, right knee
    • M23.307 - Other meniscus derangements, unspecified meniscus, left knee
    • M23.309 - Other meniscus derangements, unsp meniscus, unspecified knee
    • M23.31 - Oth meniscus derangements, anterior horn of medial meniscus
    • M23.311 - Oth meniscus derang, ant horn of medial meniscus, r knee
    • M23.312 - Oth meniscus derang, ant horn of medial meniscus, l knee
    • M23.319 - Oth meniscus derang, ant horn of medial meniscus, unsp knee
    • M23.32 - Oth meniscus derangements, posterior horn of medial meniscus
    • M23.321 - Oth meniscus derang, post horn of medial meniscus, r knee
    • M23.322 - Oth meniscus derang, post horn of medial meniscus, l knee
    • M23.329 - Oth meniscus derang, post horn of medial meniscus, unsp knee
    • M23.33 - Other meniscus derangements, other medial meniscus
    • M23.331 - Oth meniscus derangements, other medial meniscus, right knee
    • M23.332 - Oth meniscus derangements, other medial meniscus, left knee
    • M23.339 - Oth meniscus derangements, other medial meniscus, unsp knee
    • M23.34 - Oth meniscus derangements, anterior horn of lateral meniscus
    • M23.341 - Oth meniscus derang, anterior horn of lat mensc, right knee
    • M23.342 - Oth meniscus derang, anterior horn of lat mensc, left knee
    • M23.349 - Oth meniscus derang, anterior horn of lat mensc, unsp knee
    • M23.35 - Oth meniscus derangements, posterior horn of lat mensc
    • M23.351 - Oth meniscus derang, posterior horn of lat mensc, right knee
    • M23.352 - Oth meniscus derang, posterior horn of lat mensc, left knee
    • M23.359 - Oth meniscus derang, posterior horn of lat mensc, unsp knee
    • M23.36 - Other meniscus derangements, other lateral meniscus
    • M23.361 - Oth meniscus derangements, oth lateral meniscus, right knee
    • M23.362 - Oth meniscus derangements, other lateral meniscus, left knee
    • M23.369 - Oth meniscus derangements, other lateral meniscus, unsp knee
    • M23.4 - Loose body in knee
    • M23.40 - Loose body in knee, unspecified knee
    • M23.41 - Loose body in knee, right knee
    • M23.42 - Loose body in knee, left knee
    • M23.5 - Chronic instability of knee
    • M23.50 - Chronic instability of knee, unspecified knee
    • M23.51 - Chronic instability of knee, right knee
    • M23.52 - Chronic instability of knee, left knee
    • M23.6 - Other spontaneous disruption of ligament(s) of knee
    • M23.60 - Other spontaneous disruption of unspecified ligament of knee
    • M23.601 - Other spontaneous disruption of unsp ligament of right knee
    • M23.602 - Other spontaneous disruption of unsp ligament of left knee
    • M23.609 - Other spontaneous disruption of unsp ligament of unsp knee
    • M23.61 - Oth spon disruption of anterior cruciate ligament of knee
    • M23.611 - Oth spon disrupt of anterior cruciate ligament of right knee
    • M23.612 - Oth spon disrupt of anterior cruciate ligament of left knee
    • M23.619 - Oth spon disrupt of anterior cruciate ligament of unsp knee
    • M23.62 - Oth spon disruption of posterior cruciate ligament of knee
    • M23.621 - Oth spon disrupt of posterior cruciate ligament of r knee
    • M23.622 - Oth spon disrupt of posterior cruciate ligament of left knee
    • M23.629 - Oth spon disrupt of posterior cruciate ligament of unsp knee
    • M23.63 - Oth spon disruption of medial collateral ligament of knee
    • M23.631 - Oth spon disruption of medial collat ligament of right knee
    • M23.632 - Oth spon disruption of medial collat ligament of left knee
    • M23.639 - Oth spon disruption of medial collat ligament of unsp knee
    • M23.64 - Oth spon disruption of lateral collateral ligament of knee
    • M23.641 - Oth spon disruption of lateral collat ligament of right knee
    • M23.642 - Oth spon disruption of lateral collat ligament of left knee
    • M23.649 - Oth spon disruption of lateral collat ligament of unsp knee
    • M23.67 - Other spontaneous disruption of capsular ligament of knee
    • M23.671 - Oth spon disruption of capsular ligament of right knee
    • M23.672 - Oth spontaneous disruption of capsular ligament of left knee
    • M23.679 - Oth spontaneous disruption of capsular ligament of unsp knee
    • M23.8 - Other internal derangements of knee
    • M23.8X - Other internal derangements of knee
    • M23.8X1 - Other internal derangements of right knee
    • M23.8X2 - Other internal derangements of left knee
    • M23.8X9 - Other internal derangements of unspecified knee
    • M23.9 - Unspecified internal derangement of knee
    • M23.90 - Unspecified internal derangement of unspecified knee
    • M23.91 - Unspecified internal derangement of right knee
    • M23.92 - Unspecified internal derangement of left knee