MCMedicalCodingSoftware
M23.24

M23.24: Derangement of anterior horn of lateral meniscus due to old tear or injury

Non-billable headerICD-10-CM

M23.24 is a non-billable header ICD-10-CM code for derangement of anterior horn of lateral meniscus due to old tear or injury. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above M23.24

A category’s note binds every code beneath it.

Written on M23: Internal derangement of knee

  • ankylosis (M24.66)
  • deformity of knee (M21.-)
  • osteochondritis dissecans (M93.2)

Excludes2 inherited from the categories above M23.24

Not part of this code, but both may be coded when both are present.

Written on M23: Internal derangement of knee

  • 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)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead M23.24

3 child codes. Green means billable.

Other codes under M23.2

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.