DISEASES OF ORAL CAVITY, SALIVARY GLANDS, AND JAWS (520-529)
520 Disorders of tooth development and eruption
520.0: Anodontia
Absence of teeth (complete) (congenital) (partial)
Hypodontia
Oligodontia
Excludes:
acquired absence of teeth (525.10-525.19)
520.1: Supernumerary teeth
Distomolar
Fourth molar
Mesiodens
Paramolar
Supplemental teeth
Excludes:
supernumerary roots (520.2)
520.2: Abnormalities of size and form
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
Excludes:
that due to congenital syphilis (090.5)
tuberculum Carabelli, which is regarded as a normal variation
520.3: Mottled teeth
Dental fluorosis
Mottling of enamel
Nonfluoride enamel opacities
520.4: Disturbances of tooth formation
Aplasia and hypoplasia of cementum
Dilaceration of tooth
Enamel hypoplasia (neonatal) (postnatal) (prenatal)
Horner's teeth
Hypocalcification of teeth
Regional odontodysplasia
Turner's tooth
Excludes:
Hutchinson's teeth and mulberry molars in congenital syphilis (090.5)
mottled teeth (520.3)
520.5: Hereditary disturbances in tooth structure, not elsewhere classified
Amelogenesis imperfecta
Dentinogenesis imperfecta
Odontogenesis imperfecta
Dentinal dysplasia
Shell teeth
520.6: Disturbances in tooth eruption
Teeth:
embedded
impacted
natal
neonatal
prenatal
primary [deciduous]:
persistent
shedding, premature
Tooth eruption:
late
obstructed
premature
Excludes:
exfoliation of teeth (attributable to disease of surrounding tissues) (525.0-525.19)
520.7: Teething syndrome
520.8: Other specified disorders of tooth development and eruption
Color changes during tooth formation
Pre-eruptive color changes
Excludes:
posteruptive color changes (521.7)
520.9: Unspecified disorder of tooth development and eruption

Home