Cystic meniscus, other lateral meniscus, right knee

This code signifies the presence of a fluid-filled sac (cyst) within or adjacent to the lateral meniscus of the right knee. This condition can cause pain, swelling, and mechanical symptoms due to meniscal degeneration or trauma.

Apply this code when documentation clearly indicates a cystic lesion affecting the lateral meniscus of the right knee. This diagnosis is typically confirmed by imaging studies such as MRI, often in conjunction with clinical examination findings.

• Ensure laterality (right knee) is explicitly documented and matches the code.
• Distinguish from other meniscal tears or degenerative conditions without cyst formation.
• Look for documentation of imaging reports confirming the presence and location of the cystic meniscus.