Error report · Service, fee & diagnosis
OHIP error code V23
Check Number Of Services
What V23 means
The Ministry of Health’s official wording for V23 is: “Check Number Of Services.”
This code appears on your Claims Error Report (downloaded through MCEDT). It means the claim was rejected at submission and was never adjudicated for payment — fix the issue below and resubmit the claim.
How to fix V23
Check and correct the number of services on the claim line, then resubmit.
These codes relate to the fee schedule code, diagnosis code, fee amount, or service limits in the Schedule of Benefits. The fix usually starts with re-reading the code's payment rules — effective dates, age/sex limits, maximums, and combinations — for the date of service.
Related codes
- V18Invalid Admission/First Visit date
- V20Unacceptable Age for Diagnostic code - Service code is A007, patient is over 2 years old and diagnostic code is '916' or service code is A003 and the patient is under 16 years old and the diagnostic code is '917'
- V21Diagnostic Code Required
- V22Invalid Diagnostic Code
- V28Invalid Hospital Number
- V29Invalid In-Out-Patient Indicator
- V30FSC/Diagnostic Code Combination Not A Benefit (NAB)
- V34Invalid Service Code Service Code and Health Care provider type mismatch
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Code meaning per Ontario Ministry of Health — Error Report Rejection Conditions / Error Codes (December 2022). The suggested action is general information for Ontario physicians, not billing, legal, or tax advice — codes and rules change, so verify against the current Ministry of Health documents before relying on a claim.