M23

Non-Billable

Internal derangement of knee

M23 should not be used for reimbursement purposes as there are multiple sub-diagnoses that fall under this code. Please refer to the sub-diagnoses below.

Related Diagnoses

  • M23.0Cystic meniscus
    • M23.00Cystic meniscus, unspecified meniscus
      • M23.000Cystic meniscus, unspecified lateral meniscus, right knee
      • M23.001Cystic meniscus, unspecified lateral meniscus, left knee
      • M23.002Cystic meniscus, unspecified lateral meniscus, unspecified knee
      • M23.003Cystic meniscus, unspecified medial meniscus, right knee
      • M23.004Cystic meniscus, unspecified medial meniscus, left knee
      • M23.005Cystic meniscus, unspecified medial meniscus, unspecified knee
      • M23.006Cystic meniscus, unspecified meniscus, right knee
      • M23.007Cystic meniscus, unspecified meniscus, left knee
      • M23.009Cystic meniscus, unspecified meniscus, unspecified knee
    • M23.01Cystic meniscus, anterior horn of medial meniscus
      • M23.011Cystic meniscus, anterior horn of medial meniscus, right knee
      • M23.012Cystic meniscus, anterior horn of medial meniscus, left knee
      • M23.019Cystic meniscus, anterior horn of medial meniscus, unspecified knee
    • M23.02Cystic meniscus, posterior horn of medial meniscus
      • M23.021Cystic meniscus, posterior horn of medial meniscus, right knee
      • M23.022Cystic meniscus, posterior horn of medial meniscus, left knee
      • M23.029Cystic meniscus, posterior horn of medial meniscus, unspecified knee
    • M23.03Cystic meniscus, other medial meniscus
      • M23.031Cystic meniscus, other medial meniscus, right knee
      • M23.032Cystic meniscus, other medial meniscus, left knee
      • M23.039Cystic meniscus, other medial meniscus, unspecified knee
    • M23.04Cystic meniscus, anterior horn of lateral meniscus
      • M23.041Cystic meniscus, anterior horn of lateral meniscus, right knee
      • M23.042Cystic meniscus, anterior horn of lateral meniscus, left knee
      • M23.049Cystic meniscus, anterior horn of lateral meniscus, unspecified knee
    • M23.05Cystic meniscus, posterior horn of lateral meniscus
      • M23.051Cystic meniscus, posterior horn of lateral meniscus, right knee
      • M23.052Cystic meniscus, posterior horn of lateral meniscus, left knee
      • M23.059Cystic meniscus, posterior horn of lateral meniscus, unspecified knee
    • M23.06Cystic meniscus, other lateral meniscus
      • M23.061Cystic meniscus, other lateral meniscus, right knee
      • M23.062Cystic meniscus, other lateral meniscus, left knee
      • M23.069Cystic meniscus, other lateral meniscus, unspecified knee
  • M23.2Derangement of meniscus due to old tear or injury
    • M23.20Derangement of unspecified meniscus due to old tear or injury
      • M23.200Derangement of unspecified lateral meniscus due to old tear or injury, right knee
      • M23.201Derangement of unspecified lateral meniscus due to old tear or injury, left knee
      • M23.202Derangement of unspecified lateral meniscus due to old tear or injury, unspecified knee
      • M23.203Derangement of unspecified medial meniscus due to old tear or injury, right knee
      • M23.204Derangement of unspecified medial meniscus due to old tear or injury, left knee
      • M23.205Derangement of unspecified medial meniscus due to old tear or injury, unspecified knee
      • M23.206Derangement of unspecified meniscus due to old tear or injury, right knee
      • M23.207Derangement of unspecified meniscus due to old tear or injury, left knee
      • M23.209Derangement of unspecified meniscus due to old tear or injury, unspecified knee
    • M23.21Derangement of anterior horn of medial meniscus due to old tear or injury
      • M23.211Derangement of anterior horn of medial meniscus due to old tear or injury, right knee
      • M23.212Derangement of anterior horn of medial meniscus due to old tear or injury, left knee
      • M23.219Derangement of anterior horn of medial meniscus due to old tear or injury, unspecified knee
    • M23.22Derangement of posterior horn of medial meniscus due to old tear or injury
      • M23.221Derangement of posterior horn of medial meniscus due to old tear or injury, right knee
      • M23.222Derangement of posterior horn of medial meniscus due to old tear or injury, left knee
      • M23.229Derangement of posterior horn of medial meniscus due to old tear or injury, unspecified knee
    • M23.23Derangement of other medial meniscus due to old tear or injury
      • M23.231Derangement of other medial meniscus due to old tear or injury, right knee
      • M23.232Derangement of other medial meniscus due to old tear or injury, left knee
      • M23.239Derangement of other medial meniscus due to old tear or injury, unspecified knee
    • M23.24Derangement of anterior horn of lateral meniscus due to old tear or injury
      • M23.241Derangement of anterior horn of lateral meniscus due to old tear or injury, right knee
      • M23.242Derangement of anterior horn of lateral meniscus due to old tear or injury, left knee
      • M23.249Derangement of anterior horn of lateral meniscus due to old tear or injury, unspecified knee
    • M23.25Derangement of posterior horn of lateral meniscus due to old tear or injury
      • M23.251Derangement of posterior horn of lateral meniscus due to old tear or injury, right knee
      • M23.252Derangement of posterior horn of lateral meniscus due to old tear or injury, left knee
      • M23.259Derangement of posterior horn of lateral meniscus due to old tear or injury, unspecified knee
    • M23.26Derangement of other lateral meniscus due to old tear or injury
      • M23.261Derangement of other lateral meniscus due to old tear or injury, right knee
      • M23.262Derangement of other lateral meniscus due to old tear or injury, left knee
      • M23.269Derangement of other lateral meniscus due to old tear or injury, unspecified knee
  • M23.3Other meniscus derangements
    • M23.30Other meniscus derangements, unspecified meniscus
      • M23.300Other meniscus derangements, unspecified lateral meniscus, right knee
      • M23.301Other meniscus derangements, unspecified lateral meniscus, left knee
      • M23.302Other meniscus derangements, unspecified lateral meniscus, unspecified knee
      • M23.303Other meniscus derangements, unspecified medial meniscus, right knee
      • M23.304Other meniscus derangements, unspecified medial meniscus, left knee
      • M23.305Other meniscus derangements, unspecified medial meniscus, unspecified knee
      • M23.306Other meniscus derangements, unspecified meniscus, right knee
      • M23.307Other meniscus derangements, unspecified meniscus, left knee
      • M23.309Other meniscus derangements, unspecified meniscus, unspecified knee
    • M23.31Other meniscus derangements, anterior horn of medial meniscus
      • M23.311Other meniscus derangements, anterior horn of medial meniscus, right knee
      • M23.312Other meniscus derangements, anterior horn of medial meniscus, left knee
      • M23.319Other meniscus derangements, anterior horn of medial meniscus, unspecified knee
    • M23.32Other meniscus derangements, posterior horn of medial meniscus
      • M23.321Other meniscus derangements, posterior horn of medial meniscus, right knee
      • M23.322Other meniscus derangements, posterior horn of medial meniscus, left knee
      • M23.329Other meniscus derangements, posterior horn of medial meniscus, unspecified knee
    • M23.33Other meniscus derangements, other medial meniscus
      • M23.331Other meniscus derangements, other medial meniscus, right knee
      • M23.332Other meniscus derangements, other medial meniscus, left knee
      • M23.339Other meniscus derangements, other medial meniscus, unspecified knee
    • M23.34Other meniscus derangements, anterior horn of lateral meniscus
      • M23.341Other meniscus derangements, anterior horn of lateral meniscus, right knee
      • M23.342Other meniscus derangements, anterior horn of lateral meniscus, left knee
      • M23.349Other meniscus derangements, anterior horn of lateral meniscus, unspecified knee
    • M23.35Other meniscus derangements, posterior horn of lateral meniscus
      • M23.351Other meniscus derangements, posterior horn of lateral meniscus, right knee
      • M23.352Other meniscus derangements, posterior horn of lateral meniscus, left knee
      • M23.359Other meniscus derangements, posterior horn of lateral meniscus, unspecified knee
    • M23.36Other meniscus derangements, other lateral meniscus
      • M23.361Other meniscus derangements, other lateral meniscus, right knee
      • M23.362Other meniscus derangements, other lateral meniscus, left knee
      • M23.369Other meniscus derangements, other lateral meniscus, unspecified knee
  • M23.4Loose body in knee
    • M23.40Loose body in knee, unspecified knee
    • M23.41Loose body in knee, right knee
    • M23.42Loose body in knee, left knee
  • M23.5Chronic instability of knee
    • M23.50Chronic instability of knee, unspecified knee
    • M23.51Chronic instability of knee, right knee
    • M23.52Chronic instability of knee, left knee
  • M23.6Other spontaneous disruption of ligament(s) of knee
    • M23.60Other spontaneous disruption of unspecified ligament of knee
      • M23.601Other spontaneous disruption of unspecified ligament of right knee
      • M23.602Other spontaneous disruption of unspecified ligament of left knee
      • M23.609Other spontaneous disruption of unspecified ligament of unspecified knee
    • M23.61Other spontaneous disruption of anterior cruciate ligament of knee
      • M23.611Other spontaneous disruption of anterior cruciate ligament of right knee
      • M23.612Other spontaneous disruption of anterior cruciate ligament of left knee
      • M23.619Other spontaneous disruption of anterior cruciate ligament of unspecified knee
    • M23.62Other spontaneous disruption of posterior cruciate ligament of knee
      • M23.621Other spontaneous disruption of posterior cruciate ligament of right knee
      • M23.622Other spontaneous disruption of posterior cruciate ligament of left knee
      • M23.629Other spontaneous disruption of posterior cruciate ligament of unspecified knee
    • M23.63Other spontaneous disruption of medial collateral ligament of knee
      • M23.631Other spontaneous disruption of medial collateral ligament of right knee
      • M23.632Other spontaneous disruption of medial collateral ligament of left knee
      • M23.639Other spontaneous disruption of medial collateral ligament of unspecified knee
    • M23.64Other spontaneous disruption of lateral collateral ligament of knee
      • M23.641Other spontaneous disruption of lateral collateral ligament of right knee
      • M23.642Other spontaneous disruption of lateral collateral ligament of left knee
      • M23.649Other spontaneous disruption of lateral collateral ligament of unspecified knee
    • M23.67Other spontaneous disruption of capsular ligament of knee
      • M23.671Other spontaneous disruption of capsular ligament of right knee
      • M23.672Other spontaneous disruption of capsular ligament of left knee
      • M23.679Other spontaneous disruption of capsular ligament of unspecified knee
  • M23.8Other internal derangements of knee
    • M23.8XOther internal derangements of knee
      • M23.8X1Other internal derangements of right knee
      • M23.8X2Other internal derangements of left knee
      • M23.8X9Other internal derangements of unspecified knee
  • M23.9Unspecified internal derangement of knee
    • M23.90Unspecified internal derangement of unspecified knee
    • M23.91Unspecified internal derangement of right knee
    • M23.92Unspecified internal derangement of left knee
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