Rheumatoid myopathy with rheumatoid arthritis of left knee
ICD-10 M05.462 is a billable code used to indicate a diagnosis of rheumatoid myopathy with rheumatoid arthritis of left knee.
Rheumatoid myopathy is a condition characterized by muscle weakness and pain associated with rheumatoid arthritis (RA), an autoimmune disorder that primarily affects the joints. In this case, the left knee is specifically involved, leading to inflammation, pain, and potential joint damage. Anatomically, the knee joint comprises the femur, tibia, fibula, and patella, surrounded by ligaments, tendons, and synovial tissue. The pathophysiology involves the immune system mistakenly attacking the synovial membrane, leading to synovitis, which can cause joint effusion and erosion of cartilage and bone. Clinically, patients may present with decreased range of motion, muscle weakness, and systemic symptoms such as fatigue and malaise. The involvement of the left knee can significantly impact mobility and daily activities, necessitating a comprehensive treatment approach that may include medications, physical therapy, and possibly surgical interventions.
Orthopedic documentation should include imaging studies (X-rays, MRIs) to assess joint damage, functional assessments to evaluate range of motion, and any surgical notes if applicable.
Common scenarios include joint replacement surgery for severe arthritis or arthroscopy for diagnostic purposes.
Documentation must detail the severity of joint involvement and any associated deformities or functional limitations.
Rheumatologic documentation should include laboratory tests for inflammatory markers (e.g., ESR, CRP), disease activity scores, and patient-reported outcomes.
Scenarios often involve adjusting DMARD therapy or biologics based on disease progression.
Systemic involvement must be documented, including any extra-articular manifestations of rheumatoid arthritis.
Functional assessments should evaluate mobility, strength, and endurance, along with rehabilitation goals.
Rehabilitation scenarios may include physical therapy for strength training and mobility enhancement.
Documentation should address assistive device needs and any modifications required for activities of daily living.
Used for joint effusion management in the left knee.
Document the indication for the procedure, joint involved, and any findings.
Orthopedic and rheumatologic considerations for joint management.
Key documentation requirements include clear evidence of muscle weakness, joint involvement (specifically the left knee), inflammatory markers, and any functional limitations impacting daily activities.
