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.
HCFA-1500 Box 24i - Rendering Provider ID Qualifier
August 21, 2025HCFA-1500 Box 24I is used for the Rendering Provider Secondary Identification, such as Medicaid or commercial legacy IDs. Learn how this maps to the 2310B and 2420A REF segments in the X12 837P 5010.
HCFA-1500 Box 24h - EPSDT/Family Plan
August 20, 2025Learn how HCFA-1500 Box 24H (EPSDT/Family Plan) maps to X12 837P SV111 and SV112, with examples and Medicaid-specific claim guidance.