What is the name of House M.D.’s fictional department devoted to solving unusual diagnoses?

House M.D.’s fictional department for solving unusual diagnoses is the Department of Diagnostic Medicine.

The department is headed by Dr. Gregory House at Princeton-Plainsboro Teaching Hospital. It handles patients whose illnesses have resisted ordinary diagnosis, allowing House and his rotating team to investigate rare conditions through testing, differential diagnosis, and observation.

Unlike many hospital departments, Diagnostic Medicine is portrayed as a specialized investigative unit. Its cases can involve nearly any organ system, so team members draw on fields such as neurology, oncology, immunology, intensive care, and infectious disease. This broad scope is the structural reason the series can move between very different medical mysteries.

The department is sometimes casually called House’s team or simply diagnostics. Those descriptions identify the group, but the formal departmental name used by the series is Department of Diagnostic Medicine. It should also not be confused with emergency medicine, which treats urgent patients but is not the same specialty.