K05.2Non-Billable (Header)Aggressive periodontitisExcludes 1 — Do NOT code togetheracute apical periodontitis (K04.4)periapical abscess (K04.7)periapical abscess with sinus (K04.6)Child CodesK05.20Aggressive periodontitis, unspecifiedK05.21Aggressive periodontitis, localizedK05.22Aggressive periodontitis, generalizedCode Hierarchy└K05Gingivitis and periodontal diseases└K05.2Aggressive periodontitis└K05.2Aggressive periodontitis