CancelRx and CancelRx Response
CancelRx and CancelRx Response Overview
The CancelRx is sent by the prescriber to notify the pharmacy that a previously prescribed prescription should be inactivated, and no additional product should be dispensed.
The CancelRxResponse is sent from the pharmacy to the prescribing system in response to a CancelRx.
Reference: Specific formatting exists for CancelRxResponses, for more information see the NCPDP SCRIPT Implementation Recommendations, V1.69 (or latest version) Section 12.1.
CancelRx and CancelRxResponse Requirements
R.314: Receiving systems shall not automatically deny a CancelRx message due to the absence of either the PrescriberOrderNumber or the RelatesToMessageID.
CancelRx and CancelRxResponse Provider Best Practices
- When a CancelRx message is sent, a ReasonForCancellation should be sent to provide context for why the prescription is being cancelled.
- If the ReasonForCancellation is an allergic reaction, then the patient's allergies should be included.
Prescribing System-Initiated Change Process for LTPAC - Requirements/Best Practices
- R.312: In LTPAC prescribing systems, when making a prescription change using a CancelRx followed by a NewRx, a MessageRequestCode shall be used to identify the type/severity of change made. This field shall be sent in both the CancelRx and the subsequent NewRx.
- The ChangeOfPrescriptionStatusFlag should contain the appropriate code for canceling a medication that has not been dispensed or discontinuing an active order.
Values:
C = Use for canceling a prescription prior to a dispensing (administration)
D = Used for canceling a prescription that has been dispensed (administered)
- Some scenarios for Prescriber-Initiated Changes include:
- A data entry error is corrected by a prescriber or an agent of a prescriber and a CancelRx is sent with a subsequent NewRx.
- A prescriber alters a course of therapy after making a clinical decision regarding a medication and sends the pharmacy a CancelRx followed by a subsequent NewRx.
- CancelRx should contain a CodeListQualifier value of "QS" (Quantity sufficient as determined by the dispensing pharmacy) or "CF" (Compound Final Quantity) and Quantity of "0" when discontinuing an open order.