What is the name of the fictional diagnostic department led by House in House M.D.?

House leads the fictional Department of Diagnostic Medicine in House M.D.

The department specializes in solving complex cases that have resisted ordinary diagnosis. House assembles a small team of doctors, assigns them unusual investigative tasks, and combines test results with detailed reasoning to identify the underlying illness.

Diagnostic medicine is a real medical concept, but the show presents House’s department in a particularly dramatic form. In real hospitals, diagnosis is generally distributed across specialties rather than handled by one small team that takes every mysterious case.

The department’s membership changes several times across the series. Early team members include Allison Cameron, Robert Chase, and Eric Foreman. Their different specialties and personalities create both clinical debate and continuing character storylines.