TARDIS sickbay

The Doctor's TARDIS had a sickbay. (TV: The Invasion of Time, Cold Blood; AUDIO: The Angel of Scutari, The Blood Furnace)

History
The Seventh Doctor treated Melanie Bush in the sickbay after she was injured by an explosion in the console room. (AUDIO: The Blood Furnace) In the Eleventh Doctor's TARDIS, this was up the stairs, to the left, then left again. (TV: Cold Blood)

Type 70 TARDISes had sickbays on Level Gamma 7. (AUDIO: Assassin in the Limelight)

The Twelfth Doctor had some spare prosthetic legs from the Lothan in his medical bay. He used one to replace Ram Singh's leg after it was severed by Corakinus. (TV: For Tonight We Might Die)