Reason Code 50

Code Description
Reason Code: 50 These are non-covered services because this is not deemed a "medical necessity" by the payer.


Common Reasons for Denial

  • Claim is missing a Certification of Medical Necessity or DME Information Form (Required for dates of service prior to January 1, 2023 only)
  • Claim is missing the KX modifier
  • This is not a service covered by Medicare
  • Documentation requested was not received or was not received timely
  • Item billed may require a specific diagnosis or modifier code based on related LCD
  • Item being billed does not meet medical necessity

Next Step

  • If the remittance advice reason includes MA130, correct claim and rebill
  • A Redetermination request may be submitted with all relevant supporting documentation. Noridian encourages Redeterminations/Appeals be submitted using the Noridian Medicare Portal
  • Request a self service reopening if a clerical error occurred. (Missing or incorrect Diagnosis code and some modifiers)

How to Avoid Future Denials

  • Review beneficiary's records to determine if a diagnosis that qualifies is indicated.
  • Review related LCD for modifier criteria and verify the required modifiers are appended to the HCPC codes submitted. This can be accomplished by utilizing the Modifier Lookup Tool on the Noridian Medicare website.
  • Respond to development letters with supporting documentation within designated timeline as defined on letter
  • Ensure all questions on Certificate of Medical Necessity (CMN) are qualifying according to policy and submitted with claim when applicable


Last Updated Thu, 01 Dec 2022 20:41:56 +0000