What is House’s hospital department called in House M.D.?

House leads the Department of Diagnostic Medicine at Princeton-Plainsboro Teaching Hospital. The department handles difficult cases that have resisted more routine diagnoses, giving the series its distinctive medical-mystery structure.

House’s team investigates symptoms, medical histories, test results, and possible treatments, often revising its theories repeatedly as new evidence appears. The department is small and unusually selective, and its members frequently perform work that would normally be divided among several hospital specialties.

The wording is easy to confuse with internal medicine or pathology, both real medical fields that appear in hospital dramas. In House M.D., however, “diagnostic medicine” is the named department associated with House. The show uses it as a narrative hub rather than presenting it as a standard department found in every hospital.