Error Explained

The error message that is returned from the NHS says "Claim overlaps/duplicates an existing claim for the same patient, the same contract or performer."

How to Resolve

  • To find out where the duplicate or overlapping date is go to the patient's NHS Claims tab.

  • Locate the claim with an error marker.

  • Hover your mouse over the calendar next to the Treatment Plan: the start and end dates of the Treatment Plan are displayed.

  • In order to be able to successfully submit the claim, you need to check the start and end date of the treatment plan and change it if this is incorrect.

  • If the overlap is genuine and you wish to submit this claim in place of the claim it is overlapping, the best course of action is generally to Withdraw the previous claim and submit this one in its place the following day.


The claim defaults the start date to the first element of completed treatment on the treatment plan. The claim end date defaults to the date you first submitted the claim.

How to change the start / end date of a claim

  • To change the default start and end dates locate the treatment plan used to raise the claim.

  • Submit Claim.

  • On the second screen alter the start or end date and click Submit.

For more help with NHS Claims, take a look at our support doc Submitting an NHS Claim

Additional NHS Claim Error support documentation

For additional support documents showing you how to resolve common NHS Claim errors, please see below

Dealing with NHS Claim Problems - This is an overview of claim errors

Specific NHS Claim Errors

NHS Claims Error - Claim is invalid

NHS Claim Error - Further treatment within 2 months

NHS Claim Error - Treatment dates are outside the period of the contract or the performer's tenure

NHS Claim Error - Invalid location ID

NHS Claim Error - No significant treatment on a claim - England and Wales

NHS Claim Error - Further treatment within 2 months

NHS Claim Error - Invalid PIN

NHS Claim Error - SQ Ind claim where original has already been deleted or is in error

NHS Claim Error - Invalid or missing contract name and/or performer number

NHS Claim Error - Free Repair / Replacement

NHS Claim Error - Inappropriate Treatment code used

NHS Scotland Specific Errors

NHS Scotland Claim Error - No significant treatment on a claim

Additional NHS England and Wales Support web pages

Submitting an NHS claim

Resubmitting and Withdrawing NHS Claims

Sending incomplete or FTR Claims

COVID-19 Triage Assessment Forms

How to use the NHS Claims Report to track the progress of NHS claims in England and Wales

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