K05.31 Chronic periodontitis, localizedNon-billable header with 4 child codes.
K05.311 Chronic periodontitis, localized, slightK05.312 Chronic periodontitis, localized, moderateK05.313 Chronic periodontitis, localized, severeK05.319 Chronic periodontitis, localized, unspecified severityK04.5 Chronic apical periodontitis ("chronic periodontitis (K05.3-)")K13 Other diseases of lip and oral mucosa ("certain disorders of gingiva and edentulous alveolar ridge (K05-K06)")K05.222 Aggressive periodontitis, generalized, moderateK05.223 Aggressive periodontitis, generalized, severeK05.229 Aggressive periodontitis, generalized, unspecified severityK05.3 Chronic periodontitisK05.30 Chronic periodontitis, unspecifiedK05.31 Chronic periodontitis, localized (this code)K05.311 Chronic periodontitis, localized, slightK05.312 Chronic periodontitis, localized, moderateK05.313 Chronic periodontitis, localized, severeK05.319 Chronic periodontitis, localized, unspecified severityK05.32 Chronic periodontitis, generalized