Globally, the International Classification of Disease is more frequently used for clinical diagnosis, whereas the Diagnostic and Statistical Manual of Mental Disorders is more valued for research.
The process of identifying a disease, condition, or injury based on the signs and symptoms a patient is having and the patient's health history and physical exam.
The clinical diagnosis is based on explosive watery diarrhoea, cramping abdominal pain, abdominal distension and flatulence after the ingestion of milk or milk products.
The steps of the diagnostic process fall into three broad categories: Initial Diagnostic Assessment – Patient history, physical exam, evaluation of the patient's chief complaint and symptoms.
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