Reopenings Adjustment Request Form (GRF 679)
Form GRF 679
(Reopenings Adjustment Request Form) will allow you to make simple corrections to a previously processed claim. This form may be used if there is no other form to complete the type of correction needed.
Requests submitted on GRF 679 are manually processed (non-automated) and may take up to 60 days to complete. Requests to cancel an entire claim or a specific line of a claim may be automated if you submit them using the myCGS® Web Portal.
Only one claim can be corrected per form.
NOTE: In order to complete the form accurately, you must have access to your Remittance Advice (RA). If you download your RA from a billing service or clearinghouse, the line items may be in a different sequence, which will affect the processing on this form. We suggest accessing your RA directly from the myCGS® Web Portal.
Also, to avoid issues with legibility, we encourage you to complete the form online, and then print it.
Automated Reopenings Adjustment Request Form Instructions
- Complete the Header of the form:
- Select the State
- Enter the date the form is completed
- Enter a contact person's name and telephone number
- NOTE: This information is important should we need to contact you with a question regarding your Reopening request.
- NOTE: This information is important should we need to contact you with a question regarding your Reopening request.
- Complete the Provider Information section:
- Identify the last 5 digits of Tax ID number
- Enter the Billing PTAN
- Individual physicians/practitioners who reassign benefits to a group, enter the Group PTAN.
- Solo physicians/practitioners, enter the Individual PTAN.
- Enter the Billing NPI
- Individual physicians/practitioners who reassign benefits to a group, enter the Group NPI.
- Solo physicians/practitioners, enter the Individual NPI.
- Complete the Beneficiary Information section:
- Enter the Beneficiary's Name
- Enter the Beneficiary's Medicare ID
- To avoid processing delays, please verify that the Medicare ID is correct.
- To avoid processing delays, please verify that the Medicare ID is correct.
- Identify the claim information:
- Enter a Date of Service from the claim.
- Identify a HCPCS/CPT code (procedure code) that corresponds to the date of service.
- Enter the Internal Control Number (ICN) of the claim, which is located on the RA.
- Verify that the ICN is accurate. Incorrect, incomplete, or invalid ICNs will result in increased processing time (up to 60 days).
- Verify that the ICN is accurate. Incorrect, incomplete, or invalid ICNs will result in increased processing time (up to 60 days).
- Complete the Adjustment Details section:
- Check the appropriate box:
- Select Medicare Secondary Payer (MSP) for requests involving auto, Worker's Comp, or liability claims.
- Select Non-MSP for all other requests.
- To cancel an entire claim, select the Cancel this Claim option.
- If the claim was paid, please include a copy of the Voluntary Overpayment Refund Form
.
- Check the appropriate box:
- Provide details about your request in the Other section.
- Please be sure to fully and clearly explain the purpose of the Reopening. For example, explain why your timely filing denial should be adjusted. Do you have an exception to a global surgery denial you received? Explain it in this section.
- Verify your request is an actual REOPENING and opposed to a REDETERMINATION. For example, do you need to correct a diagnosis code and have medical documentation to support the correction? Submit this as a REDETERMINATION, as this situation is not a "simple correction."
- Refer to the Part B Appeals Decision Tree for help determining whether to request a REOPENING or a REDETERMINATION.
- Refer to the Part B Appeals Decision Tree for help determining whether to request a REOPENING or a REDETERMINATION.
- Be sure there is no other Reopenings form specific to your request.

Reopenings request received with invalid or incorrect information will result in the request being returned.

