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Diagnosis is the process of identifying a disease by its signs, symptoms and results
of various diagnostic procedures. It can also be the conclusion reached through that process.
Typically, someone with abnormal symptoms will consult a physician,
who will then obtain a history of their present illness and examine them for signs of disease. The physician will
formulate a hypothesis of likely diagnoses and in many cases will obtain further testing to confirm or clarify the diagnosis
before proceeding to render treatment.
The list of most likely and possible diagnoses based on available information is called a differential diagnosis; the
final diagnosis is only arrived at after other diseases on this list have been eliminated through further investigations or
consultations.
See also: nosology, International Statistical Classification of
Diseases and Related Health Problems, Diagnosis-related group.
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