M24.2

M24.2: Disorder of ligament

Non-billable headerICD-10-CM

M24.2 is a non-billable header ICD-10-CM code for disorder of ligament. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

familial ligamentous laxity (M35.7)

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

internal derangement of knee (M23.5-M23.8X9)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Instability secondary to old ligament injury
Ligamentous laxity NOS

Excludes1 inherited from the categories above M24.2

A category’s note binds every code beneath it.

Written on M24: Other specific joint derangements

current injury - see injury of joint by body region

Excludes2 inherited from the categories above M24.2

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

Written on M24: Other specific joint derangements

ganglion (M67.4)
snapping knee (M23.8-)
temporomandibular joint disorders (M26.6-)

Other codes that can never be billed with M24.2

Their own Excludes1 notes name this code, so the conflict is not listed above.

M25.3Other instability of joint
M35.7Hypermobility syndrome

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 M24.2

9 child codes. Green means billable.