Servicing Guide

Published September 9, 2020

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What is Fannie Mae's mapping to EDI investor reporting transaction set 203?

Exhibit 6, Mapping Fannie Mae Investor Reporting System Records to EDI Investor Reporting Trans Set 203 

Fannie Mae also accepts the ANSI x12 EDI format, transaction set 203, Secondary Mortgage Market Investor Report for reporting of loan activity. The transaction set 203 consists of the following:  
 

EDI Segment - identifies the transaction segment which includes a two or three digit code assigned to identify the segment and the name of the segment. 
EDI Position - specifies the order in which the segment appears in the transaction set.  
EDI Reference - indicates the segment and position. 
EDI Data Element and Description - indicates the data element name and what it is. 
EDI Requirement Designation - indicates if the field and/or segment is mandatory Value - indicates mandatory value(s). 

 

EDI

Segment ID

EDI

Position

EDI

Reference

EDI Data Element

EDI Description

EDI Requirement Designation

EDI Value

LAR

Current

Investor

Reporting

Action

Code &

Data

Element

Name 

LAR

Location of Data Element

Header

ST

(Transaction

Set)

010

ST01

Identifier Code  

Code uniquely identifyingatransaction set

Mandatory Field

Mandatory

Segment

203 (Secondary

Mortgage Market

Investor Report)

N/A

N/A

ST02

Control Number 

Identifying control number that must be unique

Mandatory Field

Mandatory

Segment

Assigned by the translation software

N/A

N/A

BGN

(Beginning

Segment)

020

 

BGN01

Purpose Code

Code identifying the purpose of the transaction set

Mandatory Field

Mandatory

Segment

00 (Original)

41 (Corrected and verified)

N/A

N/A

BGN02

Reference

Identification

Reference number or identification number

Mandatory Field

Mandatory

Segment

LAR (Loan

Activity Report)

N/A

N/A

BGN03

Date

 Date

Mandatory Field

Mandatory

Segment

Current date formatted as

YYMMDD

N/A

N/A

BGN04

Time

Time expressed in 24hour clock notation

Optional Field

Mandatory

Segment

Time formatted as HHMM where

H = hours (0023) and M = minutes (00-59)

N/A

N/A

BGN05

Time Code

Code identifying the time.

Optional Field

Mandatory

Segment

LT (Local Time)

N/A

N/A

DTP (Date or Time or Period)

030

DTP01

Date/Time

Qualifier

Code specifying the type of date or time, or both date and time

Mandatory Field

Mandatory

Segment

730 (Reporting

Cycle Date)

N/A

N/A

DTP02

Date Time

Period Format

Qualifier

Code indicating the date format, time format, or date and time format.

Mandatory Field

Mandatory

Segment

Reporting Cycle Date formatted as CCYYMM

N/A

N/A

DTP03

Date Time Period

Expression of a date, a time, or range of dates, times or dates and times.

Mandatory Field

Mandatory Segment

Date of report formatted as

CCYYMMDD 

N/A

N/A

REF

(Reference

Information)

040

REF01

Reference

Identification

Qualifier

Code qualifying the reference identification

Mandatory Field

Mandatory Segment

V8 (Instutition

Number)

N/A

N/A

REF02

Reference

Identification

Reference information as defined for a particular transaction set or as specified by the reference identification qualier

Mandatory Field

Mandatory

Segment

The Fannie Mae assigned servicer number

Fannie Mae Lender

Number

1-9

EDI

Segment ID

EDI

Position

EDI

Reference

EDI Data Element

EDI Description

EDI Requirement Designation

EDI Value

LAR

Current

Investor

Reporting

Action

Code &

Data

Element

Name 

LAR

Location of Data Element

Details

Assigned

Number

(LX)

010

LX01

Assigned Number

Number assigned for differentiation within a transaction set. The LX segment should be used each time a unique loan number is reported as well as when reporting multiple curtailments for one loan.

Mandatory Field

Mandatory

Segment

The value reported in the first instance should be one. From there, increment by a

value of 1 for each subsequent use of the LX segment

N/A

N/A

REF

(Reference

Identification

)

020

REF01

Reference

Identification

Qualifier

Code qualifying the reference identification qualifier

Use the REF segment if the subservicer number for the loan is being added, modified or deleted.

Mandatory Field

Optional Segment

When it is necessary to report this optional segment,

3 iterations of the segment are required to report the necessary information

19 (Division Identifier)

T8 (Description of Change Code)

V9 (Sibservocer) 

N/A

N/A

REF02

Reference

Identification

1st iterartion

Mandatory Field Optional Segment

For REF 01 value V9, report the Fannie Mae

sub-servicer number

(80)

Subservicer

Number

15-23

2nd iteration

Mandatory Field Optional Segment

For REF01 value T8, report an “A”, “C” or “D” for add, change or detele

 

(80)

Subservicer

Modification

Code

14

3rd iteration

Mandatory Field Optional Segment

For REF01 value 19, report “00” (zero zero) for one loan identified in RLT loop; report “01” for all mortgage

loans, “04” for one MBS pool and :09: for one remittance type

(80)

Subservicer Type Code

24-25

 

For more information see Fannie Mae Investor Reporting Manual- Chapter 5, Formulas and Calculations.
 

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