Error report · Referral & provider
OHIP error code ARP
Referring Physician Number Required
What ARP means
The Ministry of Health’s official wording for ARP is: “Referring Physician Number Required.”
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 ARP
Add the required referring physician's number to the claim and resubmit.
Referral and provider codes relate to the referring or rendering provider number, specialty restrictions, or referral requirements attached to the fee code. Verify the provider numbers on the claim and whether the code requires a valid referral.
Related codes
- A36Claimed by Other Practitioner
- A4DInvalid specialty for this service code
- AC4Unaccepted Referral Number. Not 6 numerics Equal to the Practitioner billing number Referring number is 722900-744292 (Nurse Practitioner (NP)) and FSC is not eligible for NP referral. Referring number is 700000-722899 (Midwife (MW)) and FSC is not eligible for MW referral.
- ARFMissing Physician Referring Number
- EG1Group not Eligible
- ENPInvalid FSC for Nurse Practitioner (NP)
- EP5Incorrect FSC for Group Type
- EQ1Clinic/Doctor Not on File - Practitioner not registered with OHIP
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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.