M23
Internal derangement of knee
Non-billableCategory
Coding Guidelines
Excludes1 (Mutually Exclusive)
These codes should never be used together with M23
Excludes2 (Not Included Here)
These conditions are not part of this code but may be reported additionally if documented
- S80.-S89 - current injury - see injury of knee and lower leg (S80-S89)
- M24.4 - recurrent dislocation or subluxation of joints (M24.4)
- M22.0-M221 - recurrent dislocation or subluxation of patella (M22.0-M22.1)
Specific Codes (8)
M23.0Category
Cystic meniscus
M23.2Category
Derangement of meniscus due to old tear or injury
M23.3Category
Other meniscus derangements
M23.4Category
Loose body in knee
M23.5Category
Chronic instability of knee
M23.6Category
Other spontaneous disruption of ligament(s) of knee
M23.8Category
Other internal derangements of knee
M23.9Category
Unspecified internal derangement of knee
