Type 1 Excludes
- ankylosis (M24.66)
- deformity of knee (M21.-)
- osteochondritis dissecans (M93.2)
Type 2 Excludes
- 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)
- Codes Description
- M23.0
Cystic meniscus
- M23.2
Derangement of meniscus due to old tear or injury
- M23.3
Other meniscus derangements
- M23.4
Loose body in knee
- M23.5
Chronic instability of knee
- M23.6
Other spontaneous disruption of ligament(s) of knee
- M23.8
Other internal derangements of knee
- M23.9
Unspecified internal derangement of knee