Table 4.

ORPHANET Classifications

Rare cardiac diseases
Developmental anomalies during embryogenesis
Inborn errors of metabolism
Rare gastroenterological diseases
Rare neurological diseases
Rare abdominal surgical diseases
Rare hepatic diseases
Rare respiratory diseases
Rare urogenital diseases
Rare surgical thoracic diseases
Rare skin diseases
Rare renal diseases
Rare eye diseases
Rare endocrine diseases
Rare haematological diseases
Rare immunological diseases
Rare systemic and rheumatologic diseases
Rare odontological diseases
Rare circulatory system diseases
Rare bone diseases
Rare otorhinolaryngological diseases
Rare infertility disorders
Rare tumours
Rare infectious diseases
Rare intoxications
Rare gynaecological and obstetric diseases
Rare surgical maxillo-facial diseases
Rare allergic disease
Teratological disorders
Rare cardiac malformations
Rare genetic diseases

Legend: Each of these headings represents a separate and more exhaustive classification. (http://www.orphadata.org/cgi-bin/inc/product3.inc.php)