ICD-10-CM Billable Code

M12.861

Other specific arthropathies, not elsewhere classified, right knee

Clinical Classification Guidelines

Medical Intelligence & Overview

ICD-10 Code M12.861 refers to other specific arthropathies affecting the right knee that are not classified under more common forms of joint diseases. Arthropathy is a general term for any joint disease, and this particular code is used when a distinct, identifiable form of joint disorder affects the right knee but doesn't fall under the typical classifications such as osteoarthritis or rheumatoid arthritis. Recognizing these conditions is vital for proper diagnosis and management.

Causes & Symptoms

Clinical Causes: Infectious agents leading to septic arthritis Post-traumatic joint damage or injury Metabolic conditions like gout or pseudogout Autoimmune disorders affecting the joint Degenerative changes specific to certain joint structures Rare systemic diseases affecting joints

Key Symptoms: Pain in the right knee, worsened by movement or weight bearing Swelling around the knee joint Stiffness, especially after periods of inactivity Reduced range of motion Tenderness when touching the knee Warmth or redness of the skin over the joint Possible locking or instability of the knee

Diagnostic & Treatment

Diagnosis Path: Diagnosis of specific arthropathies of the right knee involves a combination of clinical evaluation and diagnostic tests. Healthcare providers will typically perform a physical examination to assess swelling, tenderness, and mobility. Imaging studies such as X-rays can reveal joint space changes, bone damage, or presence of abnormal growths. In some cases, joint fluid analysis through aspiration may be necessary to identify infection or crystals. Blood tests can help detect markers of inflammation or autoimmune activity, guiding further diagnostic considerations.

Treatment Protocols: Treatment options aim to alleviate symptoms, slow disease progression, and improve joint function. They may include:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is M12.861 a billable ICD-10 code?
Yes, M12.861 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report M12.861?
Clinical documentation must specify the nature of Other specific arthropathies, not elsewhere classified, right knee and any associated comorbidities for accurate reporting.

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