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)

section notes

521 Diseases of hard tissues of teeth

section notes
521.00‑521.09   521.0 Dental caries
521.10‑521.15   521.1 Excessive attrition (approximal wear) (occlusal wear)
521.20‑521.25   521.2 Abrasion
521.30‑521.35   521.3 Erosion
521.40‑521.49   521.4 Pathological resorption
521.5   Hypercementosis
521.6   Ankylosis of teeth
521.7   Intrin posteruptv color
521.81‑521.89   521.8 Other specified diseases of hard tissues of teeth
521.9   Hard tiss dis teeth NOS
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