ICD-10-CM 2027
ICD-10 code for ligament disorder
From the official ICD-10-CM alphabetic index entry “Disorder (of) › ligament”. Page updated September 29, 2026.
About coding ligament disorder
The ICD-10-CM code for ligament disorder is M24.20 (Disorder of ligament, unspecified site). The official index lists 9 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M24.20.
Within M24.2, choose M24.20 (unspecified site) only when documentation doesn't support a more specific option: shoulder (M24.21), elbow (M24.22), wrist (M24.23), hand (M24.24), hip (M24.25), ankle and foot (M24.27), vertebrae (M24.28) and other specified site (M24.29).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 557 (Tendonitis, Myositis and Bursitis with MCC, relative weight 1.489) and DRG 558 (Tendonitis, Myositis and Bursitis without MCC, relative weight 0.8875), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific ligament disorder codes (official index)
- ankle M24.27 — Disorder of ligament, ankle and foot
- attachment, spine
- elbow M24.22 — Disorder of ligament, elbow
- foot joint M24.27 — Disorder of ligament, ankle and foot
- hand joint M24.24 — Disorder of ligament, hand
- hip M24.25 — Disorder of ligament, hip
- knee
- shoulder M24.21 — Disorder of ligament, shoulder
- specified site NEC M24.29 — Disorder of ligament, other specified site
- vertebra M24.28 — Disorder of ligament, vertebrae
- wrist M24.23 — Disorder of ligament, wrist
Common questions about ligament disorder ICD-10 codes
What is the ICD-10 code for ligament disorder?
- M24.20 — Disorder of ligament, unspecified site. More specific codes apply when the documentation supports them: M24.27, M24.22, M24.27, M24.24 and others below.
What is the ICD-10 code for ankle ligament disorder?
- M24.27 — Disorder of ligament, ankle and foot (header code; choose a more specific subcode).
What is the ICD-10 code for elbow ligament disorder?
- M24.22 — Disorder of ligament, elbow (header code; choose a more specific subcode).
What is the ICD-10 code for foot joint ligament disorder?
- M24.27 — Disorder of ligament, ankle and foot (header code; choose a more specific subcode).
What is the ICD-10 code for hand joint ligament disorder?
- M24.24 — Disorder of ligament, hand (header code; choose a more specific subcode).
What is the ICD-10 code for hip ligament disorder?
- M24.25 — Disorder of ligament, hip (header code; choose a more specific subcode).
What is the ICD-10 code for shoulder ligament disorder?
- M24.21 — Disorder of ligament, shoulder (header code; choose a more specific subcode).
Is M24.20 billable?
- Yes. M24.20 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M24.20 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M24.20 as a principal diagnosis.
Is M24.20 a CC or MCC?
- No. M24.20 is neither a CC nor an MCC under MS-DRG v44.0.