Solitary bone cyst, right humerus

This code signifies the presence of a single, benign, fluid-filled lesion within the bone tissue of the right upper arm. These cysts are typically asymptomatic but can weaken the bone, leading to pathological fractures.

Apply this code when documentation confirms a solitary bone cyst located specifically in the right humerus. This diagnosis is often made following imaging studies such as X-rays, MRI, or CT scans, and may be confirmed by biopsy.

• Ensure the documentation specifies "solitary" and not multiple or aneurysmal bone cysts.
• Verify the laterality is explicitly stated as "right humerus"; do not assume laterality.
• If a pathological fracture is also present due to the cyst, a code for the fracture should be sequenced first, followed by this code.