HCFA-1500 Box 29 - Amount Paid

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August 25, 2025

On the HCFA-1500 form, Box 29 is labeled “Amount Paid” and is used to report the amount the provider has already received from the patient or from another insurance plan. This ensures that payers are aware of prior payments and can calculate the remaining balance due.

Tip: Only enter amounts that have been actually collected. Do not enter copay or deductible amounts that have not yet been paid. If no payment has been made, leave this box blank.

In our example below, the provider reported $125.00 as the amount already paid.

HCFA-1500 Box 29 - Amount Paid

In the X12 837P 5010 transaction, Box 29 maps to the AMT segment in one of two locations:

  • 2300 AMT02 – Claim-level patient payment amount
  • 2320 AMT02 – Other subscriber-level prior payment amount (used when coordinating benefits)

Sample 837P (5010) – Box 29 Mapping

> Patient Amount Paid (2300) AMT*F5*125~ > Other Subscriber COB Payer Paid Amount (2320) AMT*D*125~

Segment Breakdown (focus on Box 29):

  • AMT01: Qualifier
    • F5 – Patient Amount Paid (used in 2300 Claim Information Loop)
    • D – Payer Amount Paid (used in 2320 Other Subscriber Loop, for COB)
  • AMT02: Amount Paid (e.g., 125.00)

Note: Box 29 is only populated when the provider has received prior payment. For coordination of benefits (COB), the 2320 AMT segment is used to report what another payer has already paid. If no prior payments exist, leave Box 29 blank.

For additional information on the X12 837 standard, please refer to the official implementation guides published by X12.

HCFA-1500 Form Box Locations

Grab a sample of the HCFA-1500 claim form here - HCFA 02/12 Claim Form

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