2006 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.* > 2006 ICD-9-CM Diagnosis 520.2 Abnormalities of size and form of teeth View the most recent version of ICD-9-CM 520.2 Two teeth united during development by the union of their tooth germs; the teeth may be joined by the enamel of their crowns, by their root dentin, or by both. Anomaly of the tooth, found chiefly in upper lateral incisors. It is characterized by invagination of the enamel at the incisal edge. 520.2 is a specific code that can be used to specify a diagnosis 520.2 contains 31 index entries View the ICD-9-CM Volume 1 520.* hierarchy Alternate Terminology Concrescence of teeth Fusion of teeth Gemination of teeth Dens evaginatus Dens in dente Dens invaginatus Enamel pearls Macrodontia Microdontia Peg-shaped [conical] teeth Supernumerary roots Taurodontism Tuberculum paramolare 520.2 Excludes that due to congenital syphilis (090.5) tuberculum Carabelli, which is regarded as a normal variation  Index entries containing 520.2: Abnormal, abnormality, abnormalities - see also Anomaly form, teeth 520.2 size teeth 520.2 Accessory (congenital) roots (teeth) 520.2 Anomaly, anomalous (congenital) (unspecified type) 759.9 form, teeth 520.2 Concrescence (teeth) 520.2 Conical teeth 520.2 Dens evaginatus 520.2 in dente 520.2 invaginatus 520.2 Dichotomy, teeth 520.2 Elongation, elongated (congenital) - see also Distortion tooth, teeth 520.2 Enameloma 520.2 Fusion, fused (congenital) teeth, tooth 520.2 Gemination, teeth 520.2 Macrodontia 520.2 Microdontia 520.2 Molarization, premolars 520.2 Pearls enamel 520.2 Peg-shaped teeth 520.2 Predeciduous teeth 520.2 Premolarization, cuspids 520.2 Schizodontia 520.2 Shovel-shaped incisors 520.2 Spicule tooth 520.2 Supernumerary (congenital) roots (of teeth) 520.2 Synodontia 520.2 Taurodontism 520.2 T-shaped incisors 520.2 Tuberculum occlusal 520.2 paramolare 520.2 Twinning, teeth 520.2