Myositis ossificans progressiva, left finger(s)
ICD-10 M61.145 is a billable code used to indicate a diagnosis of myositis ossificans progressiva, left 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 is caused by mutations in the ACVR1 gene, leading to dysregulation of bone morphogenetic proteins (BMPs) that promote ossification. In the case of M61.145, the ossification occurs specifically in the left finger(s), resulting in progressive muscle stiffness, pain, and decreased mobility. Patients may experience episodes of soft tissue swelling and inflammation, which can precede the formation of heterotopic bone. The condition often leads to significant functional impairment, as the ossified areas restrict normal muscle movement and joint function. Diagnosis is typically made through clinical evaluation, imaging studies such as X-rays or MRI, and genetic testing. Management focuses on symptomatic relief and physical therapy, as surgical intervention is often complicated by the risk of further ossification. Understanding the nuances of this condition is crucial for accurate coding and appropriate patient management.
Detailed clinical notes on symptom progression, imaging results, and genetic testing.
Patients presenting with unexplained muscle stiffness and swelling.
Ensure clear documentation of the condition's impact on mobility and daily activities.
Genetic test results confirming ACVR1 mutations and family history.
Patients with a family history of myositis ossificans or unexplained ossification.
Document the inheritance pattern and any related genetic counseling provided.
Used for follow-up visits to manage symptoms of myositis ossificans.
Document history of present illness, review of systems, and physical exam findings.
Rheumatology specialists should focus on functional assessments.
Myositis ossificans progressiva is a rare genetic disorder characterized by the abnormal formation of bone in muscles and connective tissues, leading to progressive stiffness and functional impairment.
