He is playing his first tournament since suffering serious injuries in a car accident in December 2022 that kept him out of last year's IPL as well as the 50-overs World Cup in India
Acute coronary syndrome is associated with a sudden reduction or blockage of blood flow to the heart.
"Abid was taken immediately to a cardiac hospital where he was diagnosed," the PCB said in a statement. "He is under the care of consultant cardiologist who is liaising with PCB medical team regarding further treatment. He is currently stable."
Abid has played 16 Test matches and six one-day internationals for Pakistan.