Convert ICD-10 Code G89.21 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
G89.21 Chronic pain due to trauma		338.21 Chronc pain d/t trauma

ICD-10 to ICD-9 crosswalk for code G89.21 - chronic pain due to trauma based on the most recent General Equivalence Mappings (GEMS) information.