2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Digestive System 520-579 > Diseases Of Oral Cavity, Salivary Glands, And Jaws 520-529 > Disorders Of Tooth Development And Eruption 520.* >  2008 ICD-9-CM Diagnosis 520.5
Hereditary disturbances in tooth structure not elsewhere classified- An apparently hereditary disorder of dentin formation, marked by a normal appearance of coronal dentin associated with pulpal obliteration, faulty root formation, and a tendency for peripheral lesions without obvious cause. (From Dorland, 27th ed)
- An autosomal dominant disorder of tooth development characterized by opalescent dentin resulting in discoloration of the teeth, ranging from dusky blue to brownish. The dentin is poorly formed with an abnormally low mineral content; the pulp canal is obliterated, but the enamel is normal. The teeth usually wear down rapidly, leaving short, brown stumps. (Dorland, 27th ed)
- An autosomal dominant or X-linked disorder in which there is faulty development of the dental enamel owing to agenesis, hypoplasia, or hypocalcification of the enamel. It is marked by enamel that is very thin and friable and frequently stained in various shades of brown. (Dorland, 27th ed)
- 520.5 is a specific code that can be used to specify a diagnosis
- 520.5 contains 12 index entries
- View the ICD-9-CM Volume 1 520.* hierarchy
520.5 also known as:- Amelogenesis imperfecta
- Dentinogenesis imperfecta
- Odontogenesis imperfecta
- Dentinal dysplasia
- Shell teeth
Index entries containing 520.5:- Amelogenesis imperfecta
 520.5- nonhereditaria (segmentalis) 520.4
Brown enamel of teeth (hereditary) 520.5
Defect, defective 759.9- dentin (hereditary) 520.5
Dentin- opalescent 520.5
Dentinogenesis imperfecta 520.5
Disturbance - see also Disease- tooth
- structure, hereditary NEC 520.5
Dysplasia - see also Anomaly- dentinal 520.5
Hypoplasia, hypoplasis 759.89- cementum 520.4
- hereditary 520.5
- enamel of teeth (neonatal) (postnatal) (prenatal) 520.4
- hereditary 520.5
Odontogenesis imperfecta 520.5
Opalescent dentin (hereditary) 520.5
Shell- teeth 520.5
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