Also known as: Back pain from inflammation of sacroiliac joint
Elliot correctly diagnoses Mr. Peterson's back pain as sacroiliitis, proving her diagnostic skills and confidence as she comes into her own as a doctor after her mentor left.
Also known as: Diabetes
Turk's diabetes is revealed during the malpractice deposition when Neena questions whether it could have affected his surgical performance, though this appears to be common knowledge that his lawyer somehow missed.
Also known as: Heart attack
Mr. Summers, a sexist hospital board member, is being treated for cardiac issues. Elliot initially pretends to be a male doctor to treat him, eventually revealing her identity while managing his heart condition.
Mr. Korman is suing Turk for malpractice, claiming the shoulder surgery ruined his tennis serve. This drives the main plot conflict of the episode, though it's ultimately revealed he doesn't blame Turk and drops the lawsuit.