Myositis ossificans progressiva, left lower leg
ICD-10 M61.162 is a billable code used to indicate a diagnosis of myositis ossificans progressiva, left lower leg.
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 is caused by mutations in the ACVR1 gene, leading to dysregulation of bone morphogenetic proteins (BMPs) that promote ossification. In the case of M61.162, the ossification occurs specifically in the left lower leg, which can lead to significant muscle weakness and impaired mobility. Patients may experience episodes of swelling, pain, and stiffness in the affected area, often exacerbated by trauma or surgical interventions. Over time, the progressive nature of the condition can result in the formation of heterotopic bone, severely limiting joint movement and function. Diagnosis typically involves clinical evaluation, imaging studies such as X-rays or MRI, and genetic testing to confirm the presence of ACVR1 mutations. Management focuses on symptomatic relief, physical therapy, and avoiding invasive procedures that may trigger further ossification.
Genetic test results, family history, and clinical findings.
Patients presenting with unexplained muscle stiffness and swelling.
Ensure genetic testing is documented to support the diagnosis.
Functional assessments, treatment plans, and progress notes.
Rehabilitation needs for patients with mobility limitations due to ossification.
Document therapy interventions and patient responses to treatment.
Used for follow-up visits to monitor the condition.
Document history, examination findings, and treatment plan.
Ensure that the visit is clearly linked to the management of MOP.
Myositis ossificans progressiva is a rare genetic disorder characterized by the abnormal formation of bone in muscles and connective tissues, leading to progressive disability.
