differential diagnosis

/D IH0 F ER0 EH1 N SH AH0 L D AY0 AH0 G N OW0 S AH0 S/
noun
  1. 1

    The process of determining which disease, from a set of possible candidates, is causing a patient's symptoms.

  2. 2

    A list of possible causes of a primary symptom or a collection of symptoms.

Source: https://en.wiktionary.org/wiki/differential%20diagnosis