The 27 System Ogran classes (MedDRA)
This post is part of 'Domain | General' series
The MedDRA system organ class is defined as the highest level of the MedDRA terminology, distinguished by anatomical or physiological system, aetiology (disease origin) or purpose. Most of these describe disorders of a specific part of the body. For example:
- Cardiac disorders describe heart problems
- Renal and urinary disorders describe kidney and bladder problems
- Some of the system organ classes are not related to a particular part of the body. For example:
- investigations describes laboratory tests and other medical investigations that gave an unusual reading
- neoplasms describes any type of growth, including cancer, no matter where it appears in the body.
- Blood and lymphatic system disorders
- Cardiac disorders
- Congenital, familial and genetic disorders
- Ear and labyrinth disorders
- Endocrine disorders
- Eye disorders
- Gastrointestinal disorders
- General disorders and administration site conditions
- Hepatobiliary disorders
- Immune system disorders
- Infections and infestations
- Injury, poisoning and procedural complications
- Investigations
- Metabolism and nutrition disorders
- Musculoskeletal and connective tissue disorders
- Neoplasms benign, malignant and unspecified (incl cysts and polyps)
- Nervous system disorders
- Pregnancy, puerperium and perinatal conditions
- Psychiatric disorders
- Renal and urinary disorders
- Reproductive system and breast disorders
- Respiratory, thoracic and mediastinal disorders
- Skin and subcutaneous tissue disorders
- Social circumstances
- Surgical and medical procedures
- Vascular disorders
- Product issues.