| K00 | Disorders of tooth development and eruption |
| K00.0 | Anodontia |
| K00.1 | Supernumerary teeth |
| K00.2 | Abnormalities of size and form of teeth |
| K00.3 | Mottled teeth |
| K00.4 | Disturbances in tooth formation |
| K00.5 | Hereditary disturbances in tooth structure, not elsewhere classified |
| K00.6 | Disturbances in tooth eruption |
| K00.7 | Teething syndrome |
| K00.8 | Other disorders of tooth development |
| K00.9 | Disorder of tooth development, unspecified |
| K01 | Embedded and impacted teeth |
| K01.0 | Embedded teeth |
| K01.1 | Impacted teeth |
| K02 | Dental caries |
| K02.3 | Arrested dental caries |
| K02.5 | Dental caries on pit and fissure surface |
| K02.51 | Dental caries on pit and fissure surface limited to enamel |
| K02.52 | Dental caries on pit and fissure surface penetrating into dentin |
| K02.53 | Dental caries on pit and fissure surface penetrating into pulp |
| K02.6 | Dental caries on smooth surface |
| K02.61 | Dental caries on smooth surface limited to enamel |
| K02.62 | Dental caries on smooth surface penetrating into dentin |
| K02.63 | Dental caries on smooth surface penetrating into pulp |
| K02.7 | Dental root caries |
| K02.9 | Dental caries, unspecified |
| K03 | Other diseases of hard tissues of teeth |
| K03.0 | Excessive attrition of teeth |
| K03.1 | Abrasion of teeth |
| K03.2 | Erosion of teeth |
| K03.3 | Pathological resorption of teeth |
| K03.4 | Hypercementosis |
| K03.5 | Ankylosis of teeth |
| K03.6 | Deposits [accretions] on teeth |
| K03.7 | Posteruptive color changes of dental hard tissues |
| K03.8 | Other specified diseases of hard tissues of teeth |
| K03.81 | Cracked tooth |
| K03.89 | Other specified diseases of hard tissues of teeth |
| K03.9 | Disease of hard tissues of teeth, unspecified |
| K04 | Diseases of pulp and periapical tissues |
| K04.0 | Pulpitis |
| K04.01 | Reversible pulpitis |
| K04.02 | Irreversible pulpitis |
| K04.1 | Necrosis of pulp |
| K04.2 | Pulp degeneration |
| K04.3 | Abnormal hard tissue formation in pulp |
| K04.4 | Acute apical periodontitis of pulpal origin |
| K04.5 | Chronic apical periodontitis |
| K04.6 | Periapical abscess with sinus |
| K04.7 | Periapical abscess without sinus |
| K04.8 | Radicular cyst |
| K04.9 | Other and unspecified diseases of pulp and periapical tissues |
| K04.90 | Unspecified diseases of pulp and periapical tissues |
| K04.99 | Other diseases of pulp and periapical tissues |
| K05 | Gingivitis and periodontal diseases |
| K05.0 | Acute gingivitis |
| K05.00 | Acute gingivitis, plaque induced |
| K05.01 | Acute gingivitis, non-plaque induced |
| K05.1 | Chronic gingivitis |
| K05.10 | Chronic gingivitis, plaque induced |
| K05.11 | Chronic gingivitis, non-plaque induced |
| K05.2 | Aggressive periodontitis |
| K05.20 | Aggressive periodontitis, unspecified |
| K05.21 | Aggressive periodontitis, localized |
| K05.211 | Aggressive periodontitis, localized, slight |
| K05.212 | Aggressive periodontitis, localized, moderate |
| K05.213 | Aggressive periodontitis, localized, severe |
| K05.219 | Aggressive periodontitis, localized, unspecified severity |
| K05.22 | Aggressive periodontitis, generalized |
| K05.221 | Aggressive periodontitis, generalized, slight |
| K05.222 | Aggressive periodontitis, generalized, moderate |
| K05.223 | Aggressive periodontitis, generalized, severe |
| K05.229 | Aggressive periodontitis, generalized, unspecified severity |
| K05.3 | Chronic periodontitis |
| K05.30 | Chronic periodontitis, unspecified |
| K05.31 | Chronic periodontitis, localized |
| K05.311 | Chronic periodontitis, localized, slight |
| K05.312 | Chronic periodontitis, localized, moderate |
| K05.313 | Chronic periodontitis, localized, severe |
| K05.319 | Chronic periodontitis, localized, unspecified severity |
| K05.32 | Chronic periodontitis, generalized |
| K05.321 | Chronic periodontitis, generalized, slight |
| K05.322 | Chronic periodontitis, generalized, moderate |
| K05.323 | Chronic periodontitis, generalized, severe |
| K05.329 | Chronic periodontitis, generalized, unspecified severity |
| K05.4 | Periodontosis |
| K05.5 | Other periodontal diseases |
| K05.6 | Periodontal disease, unspecified |
| K06 | Other disorders of gingiva and edentulous alveolar ridge |
| K06.0 | Gingival recession |
| K06.01 | Gingival recession, localized |
| K06.010 | Localized gingival recession, unspecified |
| K06.011 | Localized gingival recession, minimal |
| K06.012 | Localized gingival recession, moderate |
| K06.013 | Localized gingival recession, severe |
| K06.02 | Gingival recession, generalized |
| K06.020 | Generalized gingival recession, unspecified |
| K06.021 | Generalized gingival recession, minimal |
| K06.022 | Generalized gingival recession, moderate |
| K06.023 | Generalized gingival recession, severe |
| K06.1 | Gingival enlargement |
| K06.2 | Gingival and edentulous alveolar ridge lesions associated with trauma |
| K06.3 | Horizontal alveolar bone loss |
| K06.8 | Other specified disorders of gingiva and edentulous alveolar ridge |
| K06.9 | Disorder of gingiva and edentulous alveolar ridge, unspecified |
| K08 | Other disorders of teeth and supporting structures |
| K08.0 | Exfoliation of teeth due to systemic causes |
| K08.1 | Complete loss of teeth |
| K08.10 | Complete loss of teeth, unspecified cause |
| K08.101 | Complete loss of teeth, unspecified cause, class I |
| K08.102 | Complete loss of teeth, unspecified cause, class II |
| K08.103 | Complete loss of teeth, unspecified cause, class III |
| K08.104 | Complete loss of teeth, unspecified cause, class IV |
| K08.109 | Complete loss of teeth, unspecified cause, unspecified class |
| K08.11 | Complete loss of teeth due to trauma |
| K08.111 | Complete loss of teeth due to trauma, class I |
| K08.112 | Complete loss of teeth due to trauma, class II |
| K08.113 | Complete loss of teeth due to trauma, class III |
| K08.114 | Complete loss of teeth due to trauma, class IV |
| K08.119 | Complete loss of teeth due to trauma, unspecified class |
| K08.12 | Complete loss of teeth due to periodontal diseases |
| K08.121 | Complete loss of teeth due to periodontal diseases, class I |
| K08.122 | Complete loss of teeth due to periodontal diseases, class II |
| K08.123 | Complete loss of teeth due to periodontal diseases, class III |
| K08.124 | Complete loss of teeth due to periodontal diseases, class IV |
| K08.129 | Complete loss of teeth due to periodontal diseases, unspecified class |
| K08.13 | Complete loss of teeth due to caries |
| K08.131 | Complete loss of teeth due to caries, class I |
| K08.132 | Complete loss of teeth due to caries, class II |
| K08.133 | Complete loss of teeth due to caries, class III |
| K08.134 | Complete loss of teeth due to caries, class IV |
| K08.139 | Complete loss of teeth due to caries, unspecified class |
| K08.19 | Complete loss of teeth due to other specified cause |
| K08.191 | Complete loss of teeth due to other specified cause, class I |
| K08.192 | Complete loss of teeth due to other specified cause, class II |
| K08.193 | Complete loss of teeth due to other specified cause, class III |
| K08.194 | Complete loss of teeth due to other specified cause, class IV |
| K08.199 | Complete loss of teeth due to other specified cause, unspecified class |
| K08.2 | Atrophy of edentulous alveolar ridge |
| K08.20 | Unspecified atrophy of edentulous alveolar ridge |
| K08.21 | Minimal atrophy of the mandible |
| K08.22 | Moderate atrophy of the mandible |
| K08.23 | Severe atrophy of the mandible |
| K08.24 | Minimal atrophy of maxilla |
| K08.25 | Moderate atrophy of the maxilla |
| K08.26 | Severe atrophy of the maxilla |
| K08.3 | Retained dental root |
| K08.4 | Partial loss of teeth |
| K08.40 | Partial loss of teeth, unspecified cause |
| K08.401 | Partial loss of teeth, unspecified cause, class I |
| K08.402 | Partial loss of teeth, unspecified cause, class II |
| K08.403 | Partial loss of teeth, unspecified cause, class III |
| K08.404 | Partial loss of teeth, unspecified cause, class IV |
| K08.409 | Partial loss of teeth, unspecified cause, unspecified class |
| K08.41 | Partial loss of teeth due to trauma |
| K08.411 | Partial loss of teeth due to trauma, class I |
| K08.412 | Partial loss of teeth due to trauma, class II |
| K08.413 | Partial loss of teeth due to trauma, class III |
| K08.414 | Partial loss of teeth due to trauma, class IV |
| K08.419 | Partial loss of teeth due to trauma, unspecified class |
| K08.42 | Partial loss of teeth due to periodontal diseases |
| K08.421 | Partial loss of teeth due to periodontal diseases, class I |
| K08.422 | Partial loss of teeth due to periodontal diseases, class II |
| K08.423 | Partial loss of teeth due to periodontal diseases, class III |
| K08.424 | Partial loss of teeth due to periodontal diseases, class IV |
| K08.429 | Partial loss of teeth due to periodontal diseases, unspecified class |
| K08.43 | Partial loss of teeth due to caries |
| K08.431 | Partial loss of teeth due to caries, class I |
| K08.432 | Partial loss of teeth due to caries, class II |
| K08.433 | Partial loss of teeth due to caries, class III |
| K08.434 | Partial loss of teeth due to caries, class IV |
| K08.439 | Partial loss of teeth due to caries, unspecified class |
| K08.49 | Partial loss of teeth due to other specified cause |
| K08.491 | Partial loss of teeth due to other specified cause, class I |
| K08.492 | Partial loss of teeth due to other specified cause, class II |
| K08.493 | Partial loss of teeth due to other specified cause, class III |
| K08.494 | Partial loss of teeth due to other specified cause, class IV |
| K08.499 | Partial loss of teeth due to other specified cause, unspecified class |
| K08.5 | Unsatisfactory restoration of tooth |
| K08.50 | Unsatisfactory restoration of tooth, unspecified |
| K08.51 | Open restoration margins of tooth |
| K08.52 | Unrepairable overhanging of dental restorative materials |
| K08.53 | Fractured dental restorative material |
| K08.530 | Fractured dental restorative material without loss of material |
| K08.531 | Fractured dental restorative material with loss of material |
| K08.539 | Fractured dental restorative material, unspecified |
| K08.54 | Contour of existing restoration of tooth biologically incompatible with oral health |
| K08.55 | Allergy to existing dental restorative material |
| K08.56 | Poor aesthetic of existing restoration of tooth |
| K08.59 | Other unsatisfactory restoration of tooth |
| K08.8 | Other specified disorders of teeth and supporting structures |
| K08.81 | Primary occlusal trauma |
| K08.82 | Secondary occlusal trauma |
| K08.89 | Other specified disorders of teeth and supporting structures |
| K08.9 | Disorder of teeth and supporting structures, unspecified |
| K09 | Cysts of oral region, not elsewhere classified |
| K09.0 | Developmental odontogenic cysts |
| K09.1 | Developmental (nonodontogenic) cysts of oral region |
| K09.8 | Other cysts of oral region, not elsewhere classified |
| K09.9 | Cyst of oral region, unspecified |