Access the below Reopening related information from this page.


The Reopening process allows suppliers to correct clerical errors or omissions without having to request a formal appeal. A reopening request can be initiated online via the Noridian Medicare Portal (NMP), telephone, or in writing.

A contractor (Noridian) reserves the right to refuse to adjust a claim as requested if it appears that such an adjustment will risk incorrect payment on any claims not identified for correction.

Time Limit for Filing Request Monetary Threshold to be Met Time Limit to Complete Request Where to File Filing Options
One year from initial determination date or after one year from receipt date due to overpayment via clerical error omissions None 60 days from receipt date Contractor


Request a Reopening for the Following

This list is not all-inclusive. If upon research during a telephone reopening, any of the changes are determined too complex, the caller will be notified the request must be sent in writing as a Redetermination with the appropriate supporting documentation.

  • Diagnosis code changes or additions
  • Date of service (DOS) changes
  • HCPCS code changes
  • Certain modifier changes or additions (not an all-inclusive list)
    • KH
    • KI
    • KJ
    • RR
    • NU
    • AU
    • KL
    • RT
    • LT

Items Too Complex for Reopenings

The below must be submitted as a Redetermination request with supporting documentation.

  • Overutilization denials that require supporting medical records
  • Certificate of Medical Necessity (CMN) issues
  • Durable Medical Equipment Information Form (DIF) issues (applies to both Written and Telephone Reopenings)
  • Oxygen break in service (BIS) issues
  • Overpayments or reductions in payment
  • Medicare Secondary Payer (MSP) issues
  • Claims denied for timely filing
  • Reopenings past one year from the initial determination
  • Complex Medical Reviews or Additional Documentation Requests
  • Advance Beneficiary Notice of Non-coverage (ABN) issues and other liability issues
  • Miscellaneous HCPCS codes and all HCPCS codes that require manual pricing
  • Recovery Auditor-related items
  • The following modifier changes or additions:
    • EY
    • GA
    • GY
    • GZ
    • K0 - K4
    • KX
    • RA (cannot be added)
    • RB
    • RP
  • Certain HCPCS codes (not all-inclusive list):
    • B4159-B4162
    • E0194
    • E1028
    • K0108
    • K0462
    • L4210
    • All HCPCS in the Transcutaneous Electrical Nerve Stimulator (TENS) Policy
    • All National Drug Codes (NDCs)

Telephone Reopening Requirements

Below is the information that is required when calling to request a Reopening. If the caller does not have this information, a Reopening request cannot be completed.

Information will be verified by representative or the IVR

  • National Provider Identifier (NPI)
  • Provider Transaction Access Number (PTAN)
  • Last five digits of Tax Identification Number (TIN)

Information will be verified by representative

  • Supplier name
  • Beneficiary's Health Insurance Claim Number (HICN)
  • Beneficiary's first and last name
  • DOS
  • HCPCS code(s) in question
  • Corrective action to be taken

Additional details that may need to be verified

  • Date of service
  • Provider/Facility Name
  • Billed amount
  • Procedure code in question
  • Beneficiary's date of birth

Note: Claims with remark code MA130 can never be submitted as a reopening (telephone or written). Claims with remark code MA130 are considered unprocessable and do not have Reopening or appeal rights. The claim is missing information that is required for processing or was invalid and must be resubmitted.

Helpful Hints

  • Prior to calling Telephone Reopenings, research claim denial reason (see Remittance Advice, call IVR or Supplier Contact Center) and proper way to correct claim. Telephone Representatives cannot determine claim actions
  • Wait three(3)  business days, following receipt of electronic remittance advice (ERA), to call Reopenings to ensure claim in question has finalized
  • If more than 50 of same correction will be requested, notify the Telephone Reopenings representative. The representative will gather required information and provide further direction how to submit the request
  • Do not resubmit a claim after completing a telephone Reopening
  • Call Interactive Voice Response (IVR) to check status of a claim

Written Reopening Requirements

To submit a reopening request by mail or fax:


  • Write a letter to Noridian. Letter must include all of the below information.
    • Clear statement that explains the error or omission
    • Beneficiary name
    • Beneficiary Medicare number
    • Name and address of supplier of item/service
    • Specific date(s) of the service(s)
      • Must be specific when indicated dates of service. Do not request 01/01/15 - present, for example. List as 02/01/15, 03/01/15, 04/01/15.
    • Which item and/or services needing correction
    • Copy of Medicare Remittance Advice (RA)
    • Supporting documentation including Certificates of Medical Necessity (CMNs), DME Information Forms (DIFs), etc.

Filing Limits

Physicians, suppliers, Medicaid State agencies or the party authorized to act on behalf of the Medicaid State agency for Medicare Part B claim determinations may request a reopening.

  • Reopening requests must be received within one year from date claim completed processing as determined by date paid on beneficiary's Medicare Summary Notice (MSN) or supplier's Electronic Remittance Advice (ERA) or Standard Paper Remittance (SPR)
  • Reopening requests received after one year time limit will be dismissed as an untimely request
  • Contractor may, upon request by party affected, extend period for filing request for reopening
  • Good cause for late filing will not be considered over phone and is not applicable for telephone Reopening. See CMS Internet Only Manual (IOM), Publication 100-04, Medicare Claims Processing Manual, Chapter 29, Section 240.1 This link will take you to an external website.


If a reopening is approved, a Standard Paper Remittance (SPR) or Electronic Remittance Advice (ERA) will notify the supplier of the payment determination. A separate determination letter for fully favorable reopenings will not be sent.

Email Reopenings Inquiries

Questions and concerns regarding reopenings may be emailed to

  • Timely Filing Inquiries
  • Appeal Regulations
  • Coverage Questions
  • Appeal Rights
  • Documentation Requirements for Redeterminations
  • Redetermination/Reopening Request Forms
  • Redetermination Letter Wording
  • Social Security Laws
  • Interpretation of Denial Messages
  • Policies

Confidential information cannot be emailed. This includes Protected Health Information (PHI), such as patient names, claim information, Health Insurance Claim (HIC) numbers, Social Security numbers, Claim Control numbers (CCNs) or supplier numbers. This type of information cannot be emailed because it may be possible for others to view the contents.

This email option is for suppliers only and is not to be used by beneficiaries.

Last Updated Nov 28, 2017