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2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Digestive System 520-579 > Diseases Of Oral Cavity, Salivary Glands, And Jaws 520-529 > Disorders Of Tooth Development And Eruption 520.* > 2008 ICD-9-CM Diagnosis 520.0 Anodontia  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 520.0 can be accessed here. Congenital absence of the teeth; it may involve all (total anodontia) or only some of the teeth (partial anodontia, hypodontia), and both the deciduous and the permanent dentition, or only teeth of the permanent dentition. (Dorland, 27th ed) Having teeth in neither the mandible nor the maxilla. 520.0 is a specific code that can be used to specify a diagnosis 520.0 contains 12 index entries View the ICD-9-CM Volume 1 520.* hierarchy 520.0 also known as: Absence of teeth (complete) (congenital) (partial) Hypodontia Oligodontia 520.0 excludes: acquired absence of teeth (525.10-525.19) Index entries containing 520.0: Absence (organ or part) (complete or partial) teeth, tooth (congenital) 520.0 with abnormal spacing 524.30 acquired 525.10 with malocclusion 524.30 due to caries 525.13 extraction 525.10 periodontal disease 525.12 trauma 525.11 tooth, teeth (congenital) 520.0 with abnormal spacing 524.30 acquired 525.10 with malocclusion 524.30 due to caries 525.13 extraction 525.10 periodontal disease 525.12 trauma 525.11 Adentia (complete) (partial) (see also Absence, teeth) 520.0 Anodontia (complete) (partial) (vera) 520.0 with abnormal spacing 524.30 acquired 525.10 causing malocclusion 524.30 due to caries 525.13 extraction 525.10 periodontal disease 525.12 trauma 525.11 Deficiency, deficient number of teeth (see also Anodontia) 520.0 tooth bud (see also Anodontia) 520.0 Deficient - see also Deficiency number of teeth (see also Anodontia) 520.0 Edentia (complete) (partial) (see also Absence, tooth) 520.0 acquired (see also Edentulism) 525.40 due to caries 525.13 extraction 525.10 periodontal disease 525.12 specified NEC 525.19 trauma 525.11 causing malocclusion 524.30 congenital (deficiency of tooth buds) 520.0 Hypodontia (see also Anodontia) 520.0 Missing - see also Absence teeth (acquired) 525.10 congenital (see also Anodontia) 520.0 Oligodontia (see also Anodontia) 520.0