M23
Internal derangement of knee
- Release
- FY 2027
- Effective
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files.
Excludes1
ankylosis ( M24.66 )
Excludes1
deformity of knee ( M21 .-)
Excludes1
osteochondritis dissecans ( M93.2 )
Excludes2
current injury - see injury of knee and lower leg (S80-S89)
Excludes2
recurrent dislocation or subluxation of joints ( M24.4 )
Excludes2
recurrent dislocation or subluxation of patella (M22.0-M22.1)
More Specific Codes
8 codes under M23
- M23.0 Cystic meniscus Has subcodes
- M23.2 Derangement of meniscus due to old tear or injury Has subcodes
- M23.3 Other meniscus derangements Has subcodes
- M23.4 Loose body in knee Has subcodes
- M23.5 Chronic instability of knee Has subcodes
- M23.6 Other spontaneous disruption of ligament(s) of knee Has subcodes
- M23.8 Other internal derangements of knee Has subcodes
- M23.9 Unspecified internal derangement of knee Has subcodes
Version History
How M23 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentInternal derangement of knee
-
FY 2026 Effective
UnchangedInternal derangement of knee
Related Codes
Codes whose official notes reference M23
Data Source
Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.
- Release
- FY 2027
- Effective
- Source file
- icd10cm-code-descriptions-2027.zip
Official ICD-10-CM source files (opens in a new tab)
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