S43.149
Inferior dislocation of unspecified acromioclavicular joint
Clinical Classification Guidelines
Medical Intelligence & Overview
An inferior dislocation of the acromioclavicular (AC) joint occurs when the collarbone (clavicle) is displaced downward, away from the shoulder blade. This type of shoulder injury, coded as S43.149 in the ICD-10 classification, involves the joint where the clavicle meets the acromion of the scapula. Although uncommon, this injury can significantly impact shoulder function and requires appropriate diagnosis and management to restore mobility and reduce discomfort.
Causes & Symptoms
Clinical Causes: Trauma or direct blow to the shoulder, especially in sports, falls, or accidents High-impact injuries, such as car accidents or falls from heights Falls onto the shoulder or outstretched arm that transmit force to the joint Occasionally, repetitive stress or overuse may contribute to weakened joint stability
Key Symptoms: Pain around the affected shoulder and clavicle bone Visible deformity or bump beneath the skin at the shoulder region Limited shoulder movement or difficulty lifting the arm Swelling and tenderness around the joint Possible bruising or discoloration over the shoulder area
Diagnostic & Treatment
Diagnosis Path: Diagnosis typically involves a clinical examination and imaging studies. A healthcare provider will assess shoulder stability, inspect for deformities, and evaluate pain response. Imaging techniques such as X-rays are crucial for confirming the position of the clavicle relative to the acromion, identifying dislocation direction, and excluding associated fractures. Additional imaging like MRI may be used to assess soft tissue damage if necessary.
Treatment Protocols: Treatment approaches depend on the severity of the dislocation and the presence of associated injuries. Common management options include:
Clinical Advice & FAQs
Billing Guidance
Is S43.149 a billable ICD-10 code?
Yes, S43.149 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report S43.149?
Clinical documentation must specify the nature of Inferior dislocation of unspecified acromioclavicular joint and any associated comorbidities for accurate reporting.
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