M08.462
Pauciarticular juvenile rheumatoid arthritis, left knee
Clinical Classification Guidelines
Medical Intelligence & Overview
Pauciarticular juvenile rheumatoid arthritis (JRA) is a form of juvenile arthritis characterized by inflammation affecting fewer than five joints during the first six months of the disease. When it involves the left knee specifically, it can cause pain, swelling, and stiffness in that joint, impacting a child's mobility and daily activities. This condition is most common in young children and requires careful management to prevent long-term joint damage.
Causes & Symptoms
Clinical Causes: Genetic predisposition, including particular gene variations that influence immune system regulation Environmental factors, such as infections or exposure to certain environmental triggers that may initiate autoimmune responses Immune system dysfunction, where the body's immune defenses mistakenly attack joint tissues Other unknown factors still under research, as the exact cause of juvenile rheumatoid arthritis remains unclear
Key Symptoms: Joint pain, especially in the affected joint Swelling and warmth around the knee joint Stiffness, notably after periods of inactivity or in the morning Reduced range of motion in the affected knee Limitation in walking or physical activities due to joint discomfort Possible presence of small lumps or nodules near the joint In some cases, mild fever or rash may accompany joint symptoms
Diagnostic & Treatment
Diagnosis Path: Medical history assessment focusing on symptom duration and progression Physical examination to evaluate joint swelling, warmth, and mobility Blood tests to identify inflammation markers such as elevated ESR or CRP, and to rule out other conditions Imaging studies like X-rays or MRI scans to assess joint integrity and detect early joint changes Analysis of joint fluid, if necessary, to exclude infections or other types of arthritis
Treatment Protocols: Nonsteroidal anti-inflammatory drugs (NSAIDs) to decrease pain and inflammation Physical therapy and regular exercise to maintain joint flexibility and muscle strength Disease-modifying antirheumatic drugs (DMARDs) in more persistent or severe cases to slow disease progression Monitoring and managing complications, such as eye inflammation (iritis) that can occur with juvenile arthritis Regular follow-up with healthcare providers to adapt treatment plans as needed
Clinical Advice & FAQs
Billing Guidance
Is M08.462 a billable ICD-10 code?
Yes, M08.462 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report M08.462?
Clinical documentation must specify the nature of Pauciarticular juvenile rheumatoid arthritis, left knee and any associated comorbidities for accurate reporting.
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