Fibrous dysplasia (monostotic), right shoulder

This code signifies the presence of fibrous dysplasia affecting a single bone (monostotic) located in the right shoulder region. Fibrous dysplasia is a bone disorder where normal bone is replaced by fibrous tissue and immature woven bone, leading to weakened bone structure.

Apply this code when documentation clearly indicates a diagnosis of monostotic fibrous dysplasia specifically impacting the right shoulder. This diagnosis is typically confirmed through imaging studies (X-ray, CT, MRI) and sometimes biopsy, showing characteristic features of fibrous tissue replacement within the bone.

• Ensure the documentation specifies "monostotic" and precisely identifies the "right shoulder" as the affected site.
• Distinguish from polyostotic fibrous dysplasia, which involves multiple bones and has different ICD-10-CM codes.
• Do not confuse with other bone lesions or tumors; confirm the specific diagnosis of fibrous dysplasia.