ICD-9-CM Vol. 1 Diagnostic Codes

9. DISEASES OF THE DIGESTIVE SYSTEM (520-579)

section notes

DISEASES OF ORAL CAVITY, SALIVARY GLANDS, AND JAWS (520-529)

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521 Diseases of hard tissues of teeth

section notes

521.1 Excessive attrition (approximal wear) (occlusal wear)

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521.10 Excessive attrition NOS
521.11 Excess attrition-enamel
521.12 Excess attrition-dentine
521.13 Excessive attrition-pulp
521.14 Excess attrition-local
521.15 Excess attrition-general
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