Convert ICD-10 Code M18.30 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
M18.30 Unil post-trauma osteoarth of 1st carpometacarp jt,unsp hand		715.24 Loc 2nd osteoarthro-hand
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 M18.30 - unilateral post-traumatic osteoarthritis of first carpometacarpal joint, unspecified hand based on the most recent General Equivalence Mappings (GEMS) information.