HCFA-1500 Box 17 - Name of Referring Provider or Other Source

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August 03, 2025

On the HCFA-1500 form, Box 17 is used to report the name of the referring, ordering, or supervising provider associated with the services rendered. This box supports various qualifiers, which are entered to the left of the vertical line, with the provider's name entered to the right.

Tip: Use the appropriate qualifier in the shaded portion of the field:

  • DN – Referring Provider
  • DK – Ordering Provider
  • DQ – Supervising Provider
Enter the provider's full name in the unshaded area.

In our example below, we used 'DN' as the qualifier and entered 'John Smith MD' as the referring provider’s name.

HCFA-1500 Box 17 - Name of Referring Provider or Other Source

In the X12 837 transaction, the information from Box 17 is represented by the NM1 segment in one of the following loops, based on the provider role:

  • 2310A – Referring Provider (Qualifier: DN)
  • 2420E – Ordering Provider (Qualifier: DK)
  • 2310D – Supervising Provider (Qualifier: DQ)

Key X12 837 Details:
  • NM101: Entity Identifier Code (e.g., DN)
  • NM102: Entity Type Qualifier (1 for person)
  • NM103–NM105: Last Name, First Name, Middle Name
  • NM108: ID Qualifier (e.g., XX for NPI)
  • NM109: Provider Identifier (e.g., NPI)


Sample 837P (5010/4010) – 2310A Referring Provider

> Referring Provider (2310A) NM1*DN*1*SMITH*JOHN****XX*1234567893~

Note: Populate Box 17 with the correct qualifier and name. In the X12 837 electronic claim, this data appears in different loops depending on the provider’s role: Referring (2310A), Ordering (2420E), or Supervising (2310D).

Important: Additional rules may apply for Box 17 depending on the health plan and provider type. Always consult the official X12 implementation guides and payer-specific companion guides for complete instructions and compliance requirements.

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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