Convert ICD-10 Code K04.4 to ICD-9

Source ICD-10 Code		Target ICD-9 Code
K04.4 Acute apical periodontitis of pulpal origin		522.4 Ac apical periodontitis

ICD-10 to ICD-9 crosswalk for code K04.4 - acute apical periodontitis of pulpal origin based on the most recent General Equivalence Mappings (GEMS) information.