DISEASES OF ORAL CAVITY, SALIVARY GLANDS, AND JAWS (520-529)
521 Diseases of hard tissues of teeth
521.0: Dental caries
521.1: Excessive attrition (approximal wear) (occlusal wear)
521.2: Abrasion
Abrasion of teeth:
dentifrice
habitual
occupational
ritual
traditional
Wedge defect NOS of teeth
521.3: Erosion
Erosion of teeth:
NOS
due to:
medicine
persistent vomiting
idiopathic
occupational
521.4: Pathological resorption
521.5: Hypercementosis
Cementation hyperplasia
521.6: Ankylosis of teeth
521.7: Intrinsic posteruptive color changes
Staining [discoloration] of teeth:
NOS
due to:
drugs
metals
pulpal bleeding
Excludes:
accretions [deposits] on teeth (523.6)
extrinsic color changes (523.6)
pre-eruptive color changes (520.8)
521.8: Other specified diseases of hard tissues of teeth
521.9: Unspecified disease of hard tissues of teeth
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