What letter or number represents the root operation in code 8E0ZXY5?

All of the following are guidelines for effective health instruction EXCEPT _______

a. reemphasizing the correct information b. assuming the patient can learn c. explaining a procedure to a patient in the hallway d. defining necessary medical terms for patients using simple explanations

Using the CPT manual, select the appropriate code for the following procedure

Incisional drainage of a conjunctival cyst