M85.02
Fibrous dysplasia (monostotic), upper arm
Clinical Classification Guidelines
Medical Intelligence & Overview
Monostotic fibrous dysplasia (ICD-10 Code: M85.02) is a rare bone disorder characterized by the replacement of normal bone tissue with fibrous tissue. This condition affects only one bone, in this case, the upper arm, leading to weakened bone structure and potential deformity. Although it can occur at any age, it is most often diagnosed in children and young adults. Understanding the nature of this disorder can help individuals recognize symptoms early and seek appropriate medical care.
Causes & Symptoms
Clinical Causes: Genetic mutations affecting bone development genes Abnormal signal pathways that interfere with normal bone formation No clear environmental or lifestyle causes have been conclusively identified
Key Symptoms: Persistent pain or tenderness in the affected upper arm Swelling or palpable mass over the bone Deformity or noticeable shape changes in the upper arm Limited range of motion or weakness in the arm Fractures occurring more frequently in the affected bone
Diagnostic & Treatment
Diagnosis Path: Physical examination to assess tenderness, swelling, and deformity Imaging studies such as X-rays to visualize bone abnormalities MRI scans for detailed examination of soft tissue and bone marrow Bone scans to evaluate the activity of the lesion Biopsy in cases where diagnosis is uncertain, to rule out other conditions
Treatment Protocols: Observation for mild cases with minimal symptoms, as some lesions may stabilize over time Pain management using medications such as NSAIDs Surgical intervention to correct deformity, remove the fibrous tissue, or stabilize fractures Use of braces or supports to relieve symptoms and prevent fractures Regular follow-up imaging to monitor the lesion for changes or progression
Clinical Advice & FAQs
Billing Guidance
Is M85.02 a billable ICD-10 code?
Yes, M85.02 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report M85.02?
Clinical documentation must specify the nature of Fibrous dysplasia (monostotic), upper arm and any associated comorbidities for accurate reporting.
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