Myositis ossificans progressiva, unspecified finger(s)
ICD-10 M61.146 is a billable code used to indicate a diagnosis of myositis ossificans progressiva, unspecified finger(s).
Myositis ossificans progressiva (MOP) is a rare genetic disorder characterized by the abnormal formation of bone in muscles, tendons, and other connective tissues. This condition typically begins in early childhood and progresses over time, leading to significant muscle weakness and restricted mobility. In the case of unspecified finger(s), the ossification occurs in the muscles surrounding the fingers, which can lead to stiffness, pain, and functional impairment. Patients may experience episodes of swelling and inflammation in the affected areas, followed by the gradual development of bone tissue. The condition is often misdiagnosed due to its rarity and the overlap of symptoms with other neuromuscular disorders. Diagnosis is primarily clinical, supported by imaging studies that reveal heterotopic ossification. Genetic testing can confirm mutations in the ACVR1 gene, which are responsible for the condition. Management focuses on symptomatic relief, physical therapy, and avoiding trauma to the affected areas to prevent exacerbation of ossification. Understanding the complexities of MOP is crucial for accurate coding and appropriate patient management.
Detailed clinical notes on muscle weakness, pain, and functional limitations.
Patients presenting with unexplained muscle stiffness and swelling.
Ensure genetic testing results are included in the medical record.
Genetic test results and family history of similar conditions.
Patients with a family history of myositis ossificans or related disorders.
Document the specific genetic mutations identified.
Used for follow-up visits for management of myositis ossificans progressiva.
Detailed notes on patient history, examination findings, and treatment plan.
Rheumatology and genetics specialists should document the rationale for ongoing management.
Common symptoms include progressive muscle stiffness, pain, swelling in affected areas, and limited range of motion, particularly in the fingers and limbs.
