Oth meniscus derang, post horn of medial meniscus, unsp knee

This diagnosis code signifies a non-specific injury or degenerative condition affecting the posterior portion of the medial meniscus in an unspecified knee. It indicates a derangement that is not further specified as a tear, cyst, or other more defined pathology.

This code is appropriate when documentation indicates a derangement of the posterior horn of the medial meniscus, but the specific nature of the derangement (e.g., tear, degeneration, cyst) is not clearly identified or is described as "other." It is used when laterality of the knee is not specified in the medical record.

• Avoid using this code if a more specific diagnosis, such as a meniscal tear (e.g., S83.2-), is documented.
• Always query the provider for laterality (left or right knee) if not documented to allow for a more specific code.
• This code is often used when imaging reports describe a meniscal derangement without specifying the exact type or extent of the injury.