M24.20
Disorder of ligament, unspecified site
Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 8 more
specific codes sit alongside it. Worth
checking whether the documentation supports one of them.
Exclusions 16 never code together
M24code
M24.2code
Excludes1
- familial ligamentous laxity (M35.7)M35.7
Excludes2
- internal derangement of knee (M23.5-M23.8X9)M23.5-M23.8X9
M00-M99chapter
Excludes2
- arthropathic psoriasis (L40.5-)L40.5-
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- compartment syndrome (traumatic) (T79.A-)T79.A-
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 4
M24.2code
Inclusion terms
- Instability secondary to old ligament injury
- Ligamentous laxity NOS
M00-M25block
Includes
- Disorders affecting predominantly peripheral (limb) joints
M00-M99chapter
Notes
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Index entries leading here 1
- Disorder (of) — see also Disease
- ligament M24.20
Alongside this code 8 same parent — M24.2
M24.21 Disorder of ligament, shoulder category M24.22 Disorder of ligament, elbow category M24.23 Disorder of ligament, wrist category M24.24 Disorder of ligament, hand category M24.25 Disorder of ligament, hip category M24.27 Disorder of ligament, ankle and foot category M24.28 Disorder of ligament, vertebrae M24.29 Disorder of ligament, other specified site
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.