HCFA-1500 Box 28 - Total Charge
August 25, 2025HCFA-1500 Box 28 reports the total charges for a claim. Learn how this amount maps to CLM02 in the X12 837P 5010 and why it must match the sum of all service line charges.
HCFA-1500 Box 27 - Accept Assignment
August 25, 2025HCFA-1500 Box 27 indicates whether the provider accepts assignment of benefits. Learn how “Yes” or “No” maps to CLM07 in the X12 837P 5010 and what it means for claim processing.
HCFA-1500 Box 26 - Patient's Account No.
August 25, 2025HCFA-1500 Box 26 is used to report the patient’s account number (patient control number). Learn how this value maps to CLM01 in the X12 837P 5010 transaction and why it’s important for claim reconciliation.
HCFA-1500 Box 25 - Federal Tax ID Number
August 25, 2025HCFA-1500 Box 25 is used to report the billing provider’s Federal Tax ID (EIN or SSN). Learn how this value maps to the 2010AA REF segment in the X12 837P transaction, with examples and tips to avoid claim rejections.
HCFA-1500 Box 24j - Rendering Provider ID
August 25, 2025HCFA Box 24J on the CMS-1500 claim form is used to report the rendering provider’s identification, typically the NPI. Legacy IDs such as Medicaid or commercial provider numbers may also be included if required. Learn how Box 24J maps to the 2310B and 2420A loops in the X12 837P transaction.