M23.4
Loose body in knee
- Release
- FY 2027
- Effective
Hierarchy
Where M23.4 sits in the official hierarchy. Each level is the code it is classified under.
- M23 Parent Internal derangement of knee
- M23.4 This code Loose body in knee
Official Coding Notes
Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.
Excludes2
current injury - see injury of knee and lower leg (S80-S89)
Inherited from M23 — Internal derangement of knee
Excludes2
recurrent dislocation or subluxation of joints ( M24.4 )
Inherited from M23 — Internal derangement of knee
Excludes2
recurrent dislocation or subluxation of patella (M22.0-M22.1)
Inherited from M23 — Internal derangement of knee
More Specific Codes
3 codes under M23.4
Version History
How M23.4 appears in each release imported from the official files, newest first.
-
FY 2027 Effective
CurrentLoose body in knee
-
FY 2026 Effective
UnchangedLoose body in knee
Related Codes
Other codes under M23
Codes whose official notes reference M23.4
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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