In House M.D., what is the name of House’s diagnostic department?

House’s unit in House M.D. is the Department of Diagnostic Medicine.

The department is a fictional specialty at Princeton-Plainsboro Teaching Hospital. It handles patients whose illnesses have resisted ordinary diagnosis, allowing the series to build episodes around rare diseases, conflicting evidence, and the need to combine knowledge from several medical fields.

Dr. Gregory House leads the department and works with changing teams of fellows and doctors. The unit’s cases often begin with a baffling symptom or a failed treatment, then proceed through differential diagnoses, tests, and sometimes risky interventions. The show’s repeated phrase “Everybody lies” reflects House’s belief that incomplete patient histories can conceal the key clue.

This department should not be confused with a standard hospital service such as internal medicine or neurology. In the real world, diagnostic medicine overlaps several specialties rather than usually existing as a single House-style department. The fictional unit is therefore central to the show’s premise and format.