What code is used to report injection of a single or multiple trigger points in one or two muscles?

The correct code for reporting the injection of a single or multiple trigger points in one or two muscles is 20552. This code specifically pertains to the therapeutic injection into muscle groups, which includes trigger point injections. The code's specificity to trigger point injections allows for accurate reporting and reimbursement for the procedure performed.

In this context, it is essential to recognize that the other codes—such as 20550, which covers the injection of one muscle or group of muscles, and 20551, which is intended for the injection into a larger area involving more than one muscle but not classified under trigger points—do not apply to this scenario. Code 20553 involves the injection of more extensive areas or more complex procedures, which is not relevant when an injection is performed merely within one or two muscles for trigger points. Therefore, 20552 is the most precise code for reporting the described procedure.