What was the title of House M.D.’s first episode after the pilot?

The first House M.D. episode after the pilot is titled “Paternity.”

“Paternity” is episode 2 of season 1 and originally aired on November 23, 2004. The story follows House and his team as they investigate a teenage boy who develops troubling neurological symptoms after an ice-hockey injury. The case allows the series to establish its recurring pattern of competing diagnoses and progressively tested explanations.

The episode is important because it follows the introductory pilot while making Princeton-Plainsboro’s diagnostic process feel like the show’s regular structure. House’s team examines the patient, considers multiple possible causes, and uses tests and treatment responses to narrow the diagnosis.

“Occam’s Razor” is the pilot episode, so it is the most likely source of confusion. “Cursed” and “The Socratic Method” are also early season-one titles, but they come later. “Paternity” is specifically the second episode and therefore the first episode following the pilot.