Vitamin B 12 Cyanocobalamin Injection 1000 mcg mL Med Plus Physician Supplies CPT Code 20610: Joint Injection and Aspiration Billing Guide CPT Code 96372 Guide Injection Coding Tips CPT Code 99211: Billing Guidelines And Reimbursement Rates B!2 Inject Kit: Package Insert Prescribing Information When coding for trigger point injections, the documentation must include the site of the injection, the total number of injections and the number of muscles involved. There are two CPT codes