M02.362
Reiter's disease, left knee
Clinical Classification Guidelines
Medical Intelligence & Overview
Reiter's disease, also known as reactive arthritis, is a form of inflammatory arthritis that develops as a reaction to an infection in another part of the body. When it affects the left knee, it can cause pain, swelling, and decreased mobility in that joint. This condition commonly occurs following infections of the urinary tract, intestines, or genitals. Though it can affect any joint, the knee is one of the most frequently involved sites. Understanding the causes, symptoms, diagnosis, and treatment options can help manage this condition effectively.
Causes & Symptoms
Clinical Causes: Infections in the gastrointestinal tract caused by bacteria such as Salmonella, Shigella, Yersinia, or Campylobacter. Genitourinary infections, notably from bacteria like Chlamydia trachomatis. Genetic predisposition, particularly the presence of the HLA-B27 gene. Immune system response to infection, leading to inflammation in the joints.
Key Symptoms: Pain, swelling, and redness in the affected knee, often intensifying with activity. Joint stiffness, especially after periods of inactivity or in the morning. Other joint involvement such as ankles, feet, or other knees may occur. Conjunctivitis or inflammation of the eyes. Urinary discomfort or symptoms indicating urinary tract infection. Skin rashes or lesions, including ulcers or other skin changes. General symptoms such as fever, fatigue, or malaise.
Diagnostic & Treatment
Diagnosis Path: Diagnosing Reiter's disease involves a combination of clinical evaluations and laboratory tests. A physician will review the patient's medical history and recent infections. Physical examination focuses on the affected joint, checking for swelling, tenderness, and range of motion. Additional diagnostic procedures may include:
Treatment Protocols: Management of Reiter's disease aims to control inflammation, relieve symptoms, and treat any underlying infections. Typical treatment options include:
Clinical Advice & FAQs
Billing Guidance
Is M02.362 a billable ICD-10 code?
Yes, M02.362 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report M02.362?
Clinical documentation must specify the nature of Reiter's disease, left knee and any associated comorbidities for accurate reporting.
Cite this Clinical Reference