Here are the UFC 243 medical suspensions (via MMA Fighting):
Israel Adesanya: 7-day mandatory rest period
Robert Whittaker: 60-day medical suspension for KO, 45 days no contact
Dan Hooker: 30-day medical suspension for left knee lacerations, 21 days no contact
Al Iaquinta: 180-day medical suspension for left tibula and fibula, foot injuries
Sergey Spivak: 7-day mandatory rest period
Tai Tuivasa: 45-days medical suspension for right rib soreness, 30 days no contact
Dhiego Lima: 7-day mandatory rest period
Luke Jumeau: 30-day medical suspension (scans and X-rays were negative), 21 days no contact
Yorgan De Castro: 7-day mandatory rest period
Justin Tafa: 60-day medical suspension for KO, 45 days no contact
Jake Matthews: 7-day mandatory rest period
Rostem Akman: 7-day mandatory rest period
Callan Potter: 30-day medical suspension (no reason given), 21 days no contact
Maki Pitolo: 30-day medical suspension (no reason given), 21 days no contact
Brad Riddell: 45-day medical suspension for left eyebrow laceration, 30 days no contact
Jamie Mullarkey: 30-day medical suspension (scans were negative), 21 days no contact
Megan Anderson: 7-day mandatory rest period
Zarah Fairn: 30-day medical suspension for left eyelid laceration, 21 days no contact
Ji Yeon Kim: 7-day mandatory rest period
Nadia Kassem: 45-day medical suspension with 30-days no contact (scans and X-rays were negative)
Khalid Taha: 30-day medical suspension (no reason given), 21 days no contact
Bruno Silva: 45-day medical suspension for left eye laceration, 30 days no contact