In House M.D., which medical specialty does House’s team use to solve unusual cases?

House’s team works in diagnostic medicine, investigating unusual cases that other departments have not resolved.

Diagnostic medicine is the process of identifying a disease or condition from symptoms, medical history, examination, and testing. In the series, House leads a specialized diagnostic department at Princeton-Plainsboro Teaching Hospital. The team combines differential diagnosis with laboratory work, imaging, procedures, and repeated reassessment.

The show often uses the phrase “differential diagnosis,” but that is a clinical reasoning process rather than the department’s name. The team is also sometimes described simply as diagnosticians. Emergency medicine, dermatology, and obstetrics appear as specialties in the fictional hospital, but none is the department House heads.