X12 EDI · 837 Claims Test Data

Synthetic X12 837 Test Data — Professional, Institutional & Dental

Generate structurally valid X12 837P, 837I, and 837D healthcare claims from synthetic patient records. Every ISA envelope, NM1 loop, CLM segment, and HI code — built from a real member registry, not hand-coded fixtures. Zero PHI. No manual segment assembly. Ready in minutes.

Generate 837 test data free → See all transaction types

What Synthibase generates for 837 testing

Every 837 transaction in Synthibase is generated from a linked synthetic member record — so your claims are clinically coherent, not just structurally valid. Providers, payers, diagnoses, and procedures all trace back to a consistent patient identity.

01

837P Professional Claims

Outpatient, physician, and ancillary claims with NPI-linked provider loops, procedure codes (CPT/HCPCS), and ICD-10 diagnosis chains. Full SV1 service line detail.

02

837I Institutional Claims

Inpatient, hospital, and facility claims with UB-04 revenue codes, admission and discharge dates, DRG grouping, and condition codes.

03

837D Dental Claims

ADA claim format with CDT procedure codes, tooth numbers, surfaces, and orthodontic indicators — fully linked to the member dental plan.

04

ISA/GS envelope config

Every 837 file carries the correct sender/receiver ISA IDs, GS application codes, and interchange control numbers for your specific trading partner.

05

Payer-specific quirks

BCBS, Aetna, United, Cigna, Medicaid — each has segment-level quirks. Configure them once and every generated 837 reflects that payer's expectations.

06

COB and coordination scenarios

Generate coordination of benefits claims with primary and secondary payer loops — one of the most common edge cases that breaks go-lives.

Complete X12 transaction lifecycle

The 837 doesn't exist in isolation. In a real go-live, every claim is preceded by a 278 prior auth request, followed by a 277 status acknowledgment, and closed by an 835 remittance. Synthibase generates the complete chain from a single member record.

834 Benefit Enrollment Member enrolled and linked to coverage before any claim is generated.
278 Prior Authorization Auth request sent and response received — linked to the claim encounter.
837 Healthcare Claim Professional, Institutional, or Dental claim generated from the member record.
277 Claim Status Response Payer acknowledgment of claim receipt and processing status.
277A Batch Acknowledgment 005010X214A1 batch acknowledgment for claim sets.
835 Remittance Advice Explanation of payment — including denial scenarios for testing edge cases.

Start generating 837 test data in minutes

Free trial, no credit card required. Build a synthetic patient, configure a payer, and generate your first 837P in under 10 minutes.

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