S43.402 Unspecified sprain of left shoulder joint

ICD-10-CM S43.402: Unspecified Sprain of Left Shoulder Joint

ICD-10-CM code S43.402 designates an unspecified sprain of the left shoulder joint, classifying it within the Injury or Poisoning semantic type. The code is an active terminology concept with a parent category for unspecified shoulder joint sprains. It is distinct from the corresponding right shoulder code. 1 4

Plain-language overview

The terminology record for S43.402 lists the preferred name as unspecified sprain of left shoulder joint and indicates the concept currently holds an active record status. 1

What this code represents

The terminology record assigns S43.402 to the semantic type of Injury or Poisoning and establishes its parent concept as S43.40, the unspecified sprain of the shoulder joint. 1

Code S43.402 specifically denotes a left shoulder joint sprain, distinguishing it from S43.401, which represents an unspecified sprain of the right shoulder joint. 4

Coding details

The S43.402 terminology record indicates no narrower concepts exist under this specific code, and the concept is published with an abbreviation matching its preferred name. 1

Documentation considerations

The terminology record defines S43.402 as an unspecified sprain of the left shoulder joint, but the supplied excerpts do not detail specific clinical documentation elements required to support this code. 1

Clinical context

Clinical literature indicates shoulder injuries frequently occur during sports, falls, or car accidents, ranging from mild sprains to severe disruptions causing loss of shoulder strength and function. 2

Patients with shoulder trauma may present with anterosuperior shoulder pain following blunt trauma to the abducted shoulder or landing on an outstretched arm, suggesting acromioclavicular joint involvement. 2

What the sources add

While the terminology record defines S43.402 as an unspecified left shoulder sprain, the clinical text adds operational context by describing general shoulder injury mechanisms and diagnostic screening approaches. 1 2

Coverage and utilization context

The supplied excerpts establish the code's hierarchical classification and general clinical context for shoulder trauma but do not provide payer-specific coverage rules or utilization management guidelines for S43.402. 1 2 4

Sources

1. ICD-10-CM S43.402 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. Bookshelf — ncbi.nlm.nih.gov; accessed 2026-07-27.
3. ICD-10 | Unspecified sprain of right shoulder joint (S43.401) — cdek.pharmacy.purdue.edu; accessed 2026-07-27.
4. EVS Explore — evsexplore.semantics.cancer.gov; accessed 2026-07-27.