Solitary bone cyst, right shoulder

This code signifies the presence of a single, non-cancerous, fluid-filled lesion within the bone of the patient's right shoulder. These cysts are typically benign and often discovered incidentally during imaging for other conditions or due to pathological fracture.

Apply this code when documentation clearly indicates a solitary bone cyst located in the right shoulder, confirmed by imaging studies such as X-ray, MRI, or CT scan. This diagnosis is often made following evaluation for pain, swelling, or a suspected fracture in the shoulder region.

• Ensure laterality is explicitly documented as "right shoulder" to support this specific code.
• Distinguish from aneurysmal bone cysts (M85.5-) or other bone lesions requiring different coding.
• Do not use for multiple bone cysts; those would fall under different M85.4 subcategories.