Cystic meniscus, anterior horn of medial meniscus, r knee

This code signifies the presence of a cystic lesion within the anterior horn of the medial meniscus in the right knee. These cysts are typically benign and filled with synovial fluid, often arising from meniscal tears or degeneration.

Apply this code when documentation clearly indicates a cystic meniscus affecting the anterior horn of the medial meniscus in the right knee, often diagnosed via MRI. This diagnosis is typically made in patients presenting with knee pain, swelling, or a palpable mass.

• Ensure laterality (right knee) and specific meniscal location (anterior horn of medial meniscus) are explicitly documented.
• Distinguish from meniscal tears without cyst formation, which are coded differently.
• Look for associated meniscal pathology, such as tears, which may require additional coding.