|  K00 |  | Disorders of tooth development and eruption  | 
	
		|  |  | 
	
		| Excludes2 | embedded and impacted teeth (K01.-) 
 |  | 
|  |  | 
	
		|  K00.0 |  | Anodontia |  
		|  |  | 
| Hypodontia |  | Oligodontia |  
		| Excludes1 | acquired absence of teeth (K08.1-) 
 |  |  | 
|  |  | 
	
		|  K00.1 |  | Supernumerary teeth |  
		|  |  | 
| Distomolar |  | Fourth molar |  | Mesiodens |  | Paramolar |  | Supplementary teeth |  
		| Excludes2 | supernumerary roots (K00.2) 
 |  |  | 
|  |  | 
	
		|  K00.2 |  | Abnormalities of size and form of teeth |  
		|  |  | 
| 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 |  
		| Excludes1 | abnormalities of teeth due to congenital syphilis (A50.5) tuberculum Carabelli, which is regarded as a normal variation and should not be coded
 
 |  |  | 
|  |  | 
	
		|  K00.3 |  | Mottled teeth |  
		|  |  | 
| Dental fluorosis |  | Mottling of enamel |  | Nonfluoride enamel opacities |  
		| Excludes2 | deposits [accretions] on teeth (K03.6) 
 |  |  | 
|  |  | 
	
		|  K00.4 |  | Disturbances in tooth formation |  
		|  |  | 
| Aplasia and hypoplasia of cementum |  | Dilaceration of tooth |  | Enamel hypoplasia (neonatal) (postnatal) (prenatal) |  | Regional odontodysplasia |  | Turner's tooth |  
		| Excludes1 | Hutchinson's teeth and mulberry molars in congenital syphilis (A50.5) 
 |  
		| Excludes2 | mottled teeth (K00.3) 
 |  |  | 
|  |  | 
	
		|  K00.5 |  | Hereditary disturbances in tooth structure, not elsewhere classified |  
		|  |  | 
| Amelogenesis imperfecta |  | Dentinogenesis imperfecta |  | Odontogenesis imperfecta |  | Dentinal dysplasia |  | Shell teeth |  |  | 
|  |  | 
	
		|  K00.6 |  | Disturbances in tooth eruption |  
		|  |  | 
| Dentia praecox |  | Natal tooth |  | Neonatal tooth |  | Premature eruption of tooth |  | Premature shedding of primary [deciduous] tooth |  | Prenatal teeth |  | Retained [persistent] primary tooth |  
		| Excludes2 | embedded and impacted teeth (K01.-) 
 |  |  | 
|  |  | 
	
		|  K00.7 |  | Teething syndrome |  | 
|  |  | 
	
		|  K00.8 |  | Other disorders of tooth development |  
		|  |  | 
| Color changes during tooth formation |  | Intrinsic staining of teeth NOS |  
		| Excludes2 | posteruptive color changes (K03.7) 
 |  |  | 
|  |  | 
	
		|  K00.9 |  | Disorder of tooth development, unspecified |  
		|  |  | 
| Disorder of odontogenesis NOS |  |  |