Solitary bone cyst, left shoulder

This code identifies a benign, fluid-filled lesion within the bone of the left shoulder. These cysts are typically asymptomatic but can weaken the bone, potentially leading to pathological fractures. They are most commonly found in the humerus, particularly in children and adolescents.

Apply this code when documentation specifies a solitary bone cyst located in the left shoulder region, including the humerus, scapula, or clavicle. Supporting documentation should include imaging reports (e.g., X-ray, MRI) confirming the diagnosis and location, along with a physician's diagnostic statement.

• Ensure the documentation clearly specifies "solitary" to differentiate from other types of bone cysts.
• Verify the laterality is explicitly stated as "left shoulder"; if unspecified, an unspecified laterality code would be more appropriate.
• Do not confuse with aneurysmal bone cysts (M85.5-), which are distinct in their pathology and typically require different management.