Associate Claims to ERA

The Patient Control number is typically the main identifier that is used in tracking claims through to payment. The Patient Control number can be up to 38 alphanumeric characters, and should be unique per submission. Additionally, you can submit a providerControlNumber (API KEY)/LINE ITEM CONTROL NUMBER (5010 X12). The providerControlNumber must be unique within a patient control number. Payers are required to return this number in the remittance advice transaction (835) if the provider sends it to them in the 837. However, please note this is dependent on the claim adjudication being done on a service line level basis.