Transient synovitis, knee
ICD-10 M67.36 is a billable code used to indicate a diagnosis of transient synovitis, knee.
Transient synovitis of the knee is a benign inflammatory condition characterized by the temporary inflammation of the synovial membrane, which lines the knee joint. This condition is most commonly seen in children and adolescents, often presenting with sudden onset of knee pain, swelling, and limited range of motion. The etiology is frequently idiopathic, but it may be associated with preceding viral infections or trauma. Diagnosis is typically made through clinical evaluation, supported by imaging studies such as ultrasound or MRI, which can reveal joint effusion and synovial thickening. Treatment is generally conservative, focusing on rest, analgesics, and physical therapy. In rare cases, aspiration of the joint may be necessary to relieve pressure and pain. The prognosis is excellent, with most patients experiencing complete recovery within a few weeks. However, it is crucial to differentiate transient synovitis from more serious conditions such as septic arthritis or osteomyelitis, which require immediate intervention.
Detailed history of present illness, physical examination findings, and any imaging results.
A child presenting with knee pain after a viral illness, with swelling and limited mobility.
Ensure to document the absence of fever and systemic signs of infection.
Comprehensive assessment of knee function, imaging studies, and treatment plan.
An adolescent athlete with knee pain and swelling following a minor injury.
Document any differential diagnoses considered and the rationale for treatment decisions.
When joint effusion is present and aspiration is performed.
Document the indication for aspiration and findings from the procedure.
Orthopedic specialists should ensure detailed notes on the procedure and follow-up care.
Common symptoms include sudden knee pain, swelling, and limited range of motion, often following a viral illness or minor injury.
Diagnosis is primarily clinical, supported by imaging studies such as ultrasound or MRI to assess for joint effusion and inflammation.
Treatment usually involves rest, analgesics, and physical therapy. In some cases, aspiration of the joint may be necessary.
