(1) The following providers are eligible to enroll or contract with the medicaid agency to provide orally administered and tube-delivered enteral nutrition products, equipment, and related supplies:

(a) A pharmacy provider; or

(b) A durable medical equipment provider.

(2) To receive payment for orally administered or tube-delivered enteral nutrition products, equipment and related supplies, a provider must:

(a) Meet the requirements under chapters 182-501 and 182-502 WAC.

(b) Provide only those services that are within the scope of the provider's license.

(c) Obtain prior authorization from the agency, if required, before delivery to the client and before billing the agency.

(d) Deliver enteral nutritional products in quantities sufficient to meet the client's authorized needs, not to exceed a one-month supply.

(e) Confirm with the client or the client's caregiver that the next month's delivery of authorized orally administered enteral nutrition products is necessary and document the confirmation in the client's file. The agency does not pay for automatic periodic delivery of products.

(f) Furnish clients with new or used equipment that includes full manufacturer and dealer warranties for at least one year.

(g) Notify the client's primary care provider if the client has indicated the enteral nutrition product is not being used as prescribed and document the notification in the client's file.

(h) Have a valid prescription. To be valid, a prescription must be:

(i) Written, dated and signed (including the prescriber's credentials) by the prescriber on or before the date of delivery of the product, equipment or related supplies;

(ii) No older than one year from the date the prescriber signed the prescription; and

(iii) State the specific item or service requested, the client's diagnosis and estimated length of need, quantity and units of measure, frequency and directions for use.

(i) Have proof of delivery.

(i) When a client or the client's authorized representative receives the product directly from the provider, the provider must furnish the proof of delivery upon agency request. The proof of delivery must:

(A) Be signed and dated by the client or the client's authorized representative. The date of the signature must be the date the item was received by the client; and

(B) Include the client's name and a detailed description of the item(s) delivered, including the quantity and brand name.

(ii) When a provider uses a shipping service to deliver items, the provider must furnish proof of delivery upon agency request. The proof of delivery must include:

(A) The client's name or other client identifier;

(B) The delivery service package identification number;

(C) The delivery address; and

(D) The quantity, a detailed description, and brand name of the item being shipped.

(j) Bill the agency ((with))in accordance with agency rules and billing instructions using one of the following dates of service:

(i) If the provider used a shipping service, the provider must use the shipping date as the date of service; or

(ii) If the client or the client's authorized representative received the product directly from the provider, the provider must use the date of receipt as the date of service.