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Classical classification of human disease derives from the observational correlation between pathological analysis and clinical syndromes. Today it is preferred to classify them by their cause if it is known. The most known and used classification of diseases is the World Health Organization's ICD. This is periodically updated.
The International Classification of Diseases, Clinical Modification (ICD-9-CM) was an adaptation created by the US National Center for Health Statistics (NCHS) and used in assigning diagnostic and procedure codes associated with inpatient, outpatient, and physician office utilization in the United States. The ICD-9-CM is based on the ICD-9 but ...
A viral disease (or viral infection) occurs when an organism's body is invaded by pathogenic viruses, and infectious virus particles (virions) attach to and enter susceptible cells. [1] Examples are the common cold, gastroenteritis and pneumonia.
Coronary Artery Disease (atherosclerosis): A build-up of fatty material in the wall of the coronary artery that causes narrowing of the artery. Coronary Spasm: Repeated contractions and dilations ...
Central nervous system diseases or central nervous system disorders are a group of neurological disorders that affect the structure or function of the brain or spinal cord, which collectively form the central nervous system (CNS). [1] [2] [3] These disorders may be caused by such things as infection, injury, blood clots, age related ...
A medical classification is used to transform descriptions of medical diagnoses or procedures into standardized statistical code in a process known as clinical coding. Diagnosis classifications list diagnosis codes, which are used to track diseases and other health conditions, inclusive of chronic diseases such as diabetes mellitus and heart ...
rosacea, which is characterized by small, pus-filled bumps on the face. psoriasis, which causes scaly, itchy, and dry plaques. vitiligo, which results in large, irregular patches of lighter skin ...
A much less common symptom of an echovirus infection is viral meningitis. This is an infection of the membranes surrounding your brain and spinal cord. Viral meningitis can cause the following ...