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Internal derangement of knee M23

The ICD10 code for the diagnosis "Internal derangement of knee" is "M23". M23 is NOT a 'valid' or 'billable' ICD10 code. Please select a more specific diagnosis below.

  • M23 should not be used for reimbursement purposes. Please select a more specific diagnosis below.
  • The 2019 edition of ICD-10-CM M23 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of M23 - other international versions of ICD-10 M23 may differ.
Type 1 Excludes:
  • ankylosis (M24.66)
  • current injury - see injury of knee and lower leg (S80-S89)
  • deformity of knee (M21.-)
  • osteochondritis dissecans (M93.2)
  • recurrent dislocation or subluxation of joints (M24.4)
  • recurrent dislocation or subluxation of patella (M22.0-M22.1)

Codes: = Billable

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.