ediverse

Type to search across standards, messages, tools and glossary.

ediverse Explore the platform

Spotlight PEPPOL BIS Billing 3.0 The EU e-invoicing mandate is here — France Sept 2026, Belgium Jan 2026, Germany 2025.

— 01

Foundations

— 02

Standards

— 03

Flagship messages

— 04

Tools

X12 200 — Mortgage Credit Report

The 200 carries a mortgage credit report from a Credit Reporting Agency (CRA) to a lender as part of a mortgage loan application.

Purpose

The 200 documents a Residential Mortgage Credit Report (RMCR) or an In-File Credit Report: tradelines, public records, bureau-specific FICO scores, fraud alerts, prior employers, prior addresses. It is issued by a CRA (Equifax, Experian, TransUnion) or a mortgage reseller (Factual Data, CIS, etc.) in response to a lender request.

It feeds Fannie Mae / Freddie Mac underwriting (DU, LPA) and FHA/VA. Acknowledged by 997; the return is consumed directly by the lender's underwriting engine, no business EDI response. Corrections flow through a new 200 in replace mode.

Envelope structure

The 200 travels within the three X12 envelope levels (ISA/IEA, GS/GE with functional group MC, and ST/SE). Didactic example in release 004010:

x12 example-200.x12 
ISA*00*          *00*          *ZZ*FACTDATA      *ZZ*BIGLENDER     *260514*1900*U*00401*000000200*0*P*>~
GS*MC*FACTDATA*BIGLENDER*20260514*1900*1*X*004010~
ST*200*0001~
BGN*00*MC-2026-0042*20260514~
N1*FA*FACTUAL DATA*24*EIN-FACTDATA~
NM1*IL*1*DOE*JANE*A***34*SSN-LAST4-1234~
DMG*D8*19850712*F~
REF*ZZ*FICO-EQUIFAX-742~
REF*ZZ*FICO-EXPERIAN-749~
REF*ZZ*FICO-TRANSUNION-738~
LX*1~
REF*ZZ*MORTGAGE-CHASE-2018~
AMT*ZZ*145000.00~
MSG*PAID AS AGREED~
SE*11*0001~
GE*1*1~
IEA*1*000000200~

Common segments

  • Header — ST, BGN.
  • CRA and consumer — N1*FA (Credit Reporting Agency), NM1*IL (Consumer) with truncated SSN, DMG.
  • Scores — repeated REF*ZZ (FICO per bureau: Equifax FICO 5, Experian FICO 2, TransUnion FICO 4 — the standard mortgage triad).
  • Trade lines — LX loop: REF*ZZ (trade identifier), AMT*ZZ (balance), MSG (payment status).
  • Summary — SE.

Common pitfalls

  • Triad scoring: DU/LPA use the median (middle FICO) of the triad, not the average. A 200 with only one bureau forces the underwriter to use the worst score (single-bureau penalty).
  • FCRA permissible purpose: a 200 can only be pulled with a permissible purpose defined under FCRA §604(b)(3) — typically credit application. Pull without authorization = FCRA violation.
  • Open dispute: a trade under Section 611 dispute must be flagged in MSG — if the underwriter does not see it, the decision is skewed.

Documentation

The code 200 and the name Mortgage Credit Report are public and listed on x12.org/products/transaction-sets. The complete structure of loops, qualifiers and code lists is distributed by DISA via the proprietary Implementation Guides (TR3). ediverse.io covers only public concepts, the envelope and didactic examples.