Question: We have a patient who has had surgically induced astigmatism following cataract surgery. What diagnosis code or codes should I be using for this condition? California Subscriber Answer: Some patients may experience surgically induced astigmatism after cataract surgery until the incision heals. The sutures that the ophthalmologist places can cause a slight wrinkling of the cornea, and the patient can then experience astigmatism until the surgical wound fully heals. This is a complication that sometimes occurs after cataract surgery.