FISS Narrative:
The third diagnosis code is invalid. Please refer to the latest ICD-10-CM coding book to validate the code. Ensure that the statement covered dates fall within the effective date for the ICD-10-CM code you are using.

Explanation and Suggestion:

  • The diagnosis code entered in the third diagnosis field either contains other than numeric characters or may require an appropriate fourth or fifth digit
  • Please correct and resubmit/rekey
  • Hard copy submitters resubmit RTP report with corrections

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