M23

Internal derangement of knee

Cannot Code Together

These codes cannot be used together with the current code, even if both conditions are present.

  • • ankylosis (M24.66)
  • • deformity of knee (M21.-)
  • • osteochondritis dissecans (M93.2)

Can Code Together

These codes can be used together with the current code if both conditions are documented.

  • • current injury - see injury of knee and lower leg (S80-S89)
  • • recurrent dislocation or subluxation of joints (M24.4)
  • • recurrent dislocation or subluxation of patella (M22.0-M22.1)