| BA | Item furnished in conjunction with parenteral enteral nutrition (pen) services |
| BL | Special acquisition of blood and blood products |
| BO | Orally administered nutrition, not by feeding tube |
| BP | The beneficiary has been informed of the purchase and rental options and has elected to purchase the item |
| BR | The beneficiary has been informed of the purchase and rental options and has elected to rent the item |
| BU | The beneficiary has been informed of the purchase and rental options and after 30 days has not informed the supplier of his/her decision |