Before we can draw a comparison, we need to establish a solid foundation
We established C-APCs as a category broadly for OPPS payment and implemented 25 C-APCs beginning in CY 2015 (79 FR 66809 and 66810)
The critical rule: recalculate everything

Category : HUMAN PRESCRIPTION DRUG LABEL DEA Schedule : none Marketing Status : New Drug Application INGREDIENTS AND APPEARANCE LABELER - Hikma Pharmaceuticals USA Inc.(001230762) PRINCIPAL DISPLAY PANEL NDC 0143-9621-01 1 mL Vial Cyanocobalamin Injection, USP Rx only 1,000 mcg/mL For IM or SC use ONLY Protect from light Contains Benzyl Alcohol NDC 0143-9621-25 Rx only Cyanocobalamin Injection, USP 1,000 mcg/mL For Intramuscular or Subcutaneous use ONLY Contains Benzyl Alcohol as a Preservative 25 x 1 mL Vials PRINCIPAL DISPLAY PANEL NDC 0143-9620-01 10 mL Multiple Dose Vial Cyanocobalamin Injection, USP Rx only 10,000 mcg per 10 mL (1,000 mcg/mL) For Intramuscular or Subcutaneous use ONLY Contains Benzyl Alcohol as a Preservative NDC 0143-9620-10 Rx only Cyanocobalamin Injection, USP 10,000 mcg per 10 mL (1,000 mcg/mL) For Intramuscular or Subcutaneous use ONLY Contains Benzyl Alcohol as a Preservative 10 x 10 mL Multiple Dose Vials PRINCIPAL DISPLAY PANEL NDC 0143-9619-01 30 mL Multiple Dose Vial Cyanocobalamin Injection, USP Rx only 30,000 mcg per 30 mL (1,000 mcg/mL) For Intramuscular or Subcutaneous use ONLY Contains Benzyl Alcohol as a Preservative NDC 0143-9619-10 Rx only Cyanocobalamin Injection, USP 30,000 mcg per 30 mL (1,000 mcg/mL) For Intramuscular or Subcutaneous use ONLY Contains Benzyl Alcohol as a Preservative 10 x 30 mL Multiple Dose Vials NDC 0143-9619-01 Rx only Cyanocobalamin Injection, USP 30,000 mcg per 30 mL (1,000 mcg/mL) For Intramuscular or Subcutaneous use ONLY Contains Benzyl Alcohol as a Preservative 1 x 30 mL Multiple Dose Vials PRINCIPAL DISPLAY PANEL
