Derangement of unsp lat mensc due to old tear/inj, unsp knee

This code describes a chronic internal derangement of the lateral meniscus in an unspecified knee, resulting from a prior tear or injury. It indicates ongoing mechanical symptoms or instability attributable to an old meniscal lesion. The specific nature of the derangement (e.g., bucket handle, flap tear) is not specified.

Use this code when documentation indicates a patient presents with symptoms related to an old, unspecified lateral meniscal tear or injury of an unspecified knee. This is appropriate when the provider has not specified the laterality (left or right) of the affected knee. Supporting documentation would include a history of prior knee injury and current symptoms consistent with meniscal pathology.

• Do not use this code if the laterality of the knee (left or right) is documented; instead, select a more specific code.
• This code implies a chronic condition; for acute tears, refer to codes in the S83.2- series.
• Always query the provider for laterality if not clearly documented to allow for more specific coding.