Convert ICD-10 Code M23.209 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
M23.209 Derangement of unsp meniscus due to old tear/inj, unsp knee		717.5 Derangement meniscus NEC
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

ICD-10 to ICD-9 crosswalk for code M23.209 - derangement of unspecified meniscus due to old tear or injury, unspecified knee based on the most recent General Equivalence Mappings (GEMS) information.