A34Multiple duplicate claims
Assessment · General error codes
What this reference tells you
A34 is an Error Report rejection condition. It helps identify why a claim failed initial processing so the underlying data or documentation can be reviewed.
Suggested review path
Compare service date, patient, provider, and fee code; appeal only when the service was distinct and documented.
Before using this code
Confirm the current Ministry publication, the patient and provider context, the date of service, and documentation supporting the claim. A searchable reference does not establish eligibility or guarantee payment.