Cystic meniscus, anterior horn of medial meniscus, left knee

This code identifies a fluid-filled sac (cyst) located within the anterior portion of the medial meniscus in the left knee. This condition can cause pain, swelling, and mechanical symptoms due to meniscal degeneration and cyst formation.

Apply this code when documentation clearly specifies a cystic lesion affecting the anterior horn of the medial meniscus in the left knee. Supporting documentation includes MRI reports, arthroscopy findings, and physician notes detailing the location and nature of the meniscal pathology.

• Ensure the laterality (left knee) and specific meniscal horn (anterior horn of medial meniscus) are explicitly documented.
• Do not confuse with other meniscal tears or degenerative conditions without explicit mention of a cyst.
• Consider sequencing this code with codes for associated symptoms (e.g., knee pain, swelling) if applicable.