S43.152 Posterior dislocation of left acromioclavicular joint

ICD-10-CM S43.152: Posterior dislocation of left acromioclavicular joint

ICD-10-CM code S43.152 identifies a posterior dislocation of the left acromioclavicular joint and is an active terminology concept classified as an injury or poisoning. It is a specific laterality code nested under the parent concept for posterior dislocation of the acromioclavicular joint. 1 4

Plain-language overview

Code S43.152 describes a posterior dislocation of the left acromioclavicular joint, and general acromioclavicular joint injuries are frequent shoulder injuries that can occur during sports, falls, or car accidents. 1 2

The acromioclavicular joint is primarily stabilized by the acromioclavicular ligament, which is composed of an anterior, posterior, inferior, and superior component. 2

What this code represents

The official preferred name for S43.152 is posterior dislocation of the left acromioclavicular joint, and the terminology record assigns it the semantic type of injury or poisoning. 1

S43.152 is an active ICD-10-CM concept with no narrower child concepts, and its direct parent concept is S43.15 for posterior dislocation of the acromioclavicular joint. 1

Coding details

The S43.152 code tree includes encounter extensions for this left posterior dislocation, such as S43.152A for initial encounter, S43.152D for subsequent encounter, and S43.152S for sequela. 4

The broader code category distinguishes left-sided acromioclavicular dislocations by direction, including S43.152 for posterior, S43.142 for inferior, and S43.102 for unspecified dislocations. 4

Documentation considerations

Clinical literature indicates that acromioclavicular joint injuries may not always be evident on regular radiographic views, including anteroposterior and lateral projections. 2

What the sources add

While terminology records establish the formal code definition and hierarchy for S43.152, clinical reference sources add that the Rockwood classification remains the standard tool for driving treatment decisions for acromioclavicular joint injuries. 1 2

Code tree listings provide the specific encounter and sequela extensions applicable to S43.152, whereas the terminology record confirms the base code itself has no narrower child concepts. 1 4

Sources

1. ICD-10-CM S43.152 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Bookshelf — ncbi.nlm.nih.gov; accessed 2026-07-27.
3. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.
4. ICD-10-CM 2024 | S43.1 - Subluxation and dislocation of acromioclavicular joint — unboundmedicine.com; accessed 2026-07-27.