Disorder of ligament
Disorder of ligament
M24.2 is a header (parent) code in the ICD-10-CM hierarchy. It is not billable for claim submission. Use one of the billable child codes listed below.
Billable codes in this category
Each of the codes below is billable. Choose the one that most accurately describes the patient's diagnosis.
M24.20 captures a ligament disorder — including instability from old ligament injury or ligamentous laxity NOS — when no anatomical site is documented in the record.
M24.28 classifies a non-traumatic disorder of one or more spinal ligaments that does not fall under a more specific vertebral instability or derangement code.
Chronic or non-traumatic ligamentous pathology occurring at a joint site not captured by any other specific M24.2x subcategory — a true residual bucket for documented ligament disorders that lack a dedicated laterality-specific code.
Inclusion & exclusion notes
Includes
- Instability secondary to old ligament injury
- Ligamentous laxity NOS
Excludes 1 (mutually exclusive — never code together)
- familial ligamentous laxity (M35.7)
Excludes 2 (not included here, but may be coded together if both present)
- internal derangement of knee (M23.5-M23.8X9)