injection - procedure vs minor surgery?

Is an injection considered minor surgery in the following setting:
The patient came for an injection and the physician reviewed the basics of the procedure with the patient, got the consent forms signed, prepped the patient, and performed the procedure.
Would the modifier -25 be used in this case, or would there be no modifier needed for this?

re: injection - procedure vs minor surgery?

Are you just billing the injection? If so, no -25. If you are billing a E&M code and the injection, there must be work done to justify the E&M. And if so then -25 is needed on the E&M. So came in for knee injection- no E&M. Came in with knee pain. Full hx and exam done, determined injection appropriate, pt agreed and injection given then E&M-25 and injection.