New Jersey Subscriber
Answer: Medicare will pay for 90782 (Therapeutic, prophylactic or diagnostic injection [specify material injected]; subcutaneous or intramuscular) if your allergist performs no other service payable under the Medicare Physician Fee Schedule during that patient encounter. If the physician provided additional services, such as an evaluation for wheezing, Medicare will consider 90782 bundled into the appropriate E/M code (99211-99215).
On the other hand, private payers may reimburse when you bill 90782 and an E/M code. CPT and AMA guidelines state that you can appropriately bill 90782 with an office visit code, such as 99213 (Office or other outpatient visit ... established patient ...) when the physician administers the injection during a visit that involved more than one injection. Even so, private insurers vary on whether they pay for both 90782 and an E/M code, so check with your payer.