In the future, if you do need to correct a claim, you can do so by correcting it and resubmitting it electronically with the correct frequency code if your software requires that, or you can just correct and resubmit, or if the claim goes on paper (very rare circumstance), you would correct, reprint, and you can write Corrected Claim on top of CMS form. Some insurances will also allow you to correct through their portals, or Availity or Navinet if the insurance uses those websites.