State of Connecticut Workers' Compensation Commission, Stephen M. Morelli, Chairman
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EDI Frequently Asked Questions

Contact: Office of the Chairman
Phone: (860) 493-1500

What EDI formats does Connecticut use?

We use the standard International Association of Industrial Boards and Commissions (IAIABC) formats for First Report of Injury (FROI) Release 1 (148, FROI). See spreadsheet for the list of required and optional fields for each layout. We also have copies of the data dictionary giving field definitions and sizes.

We also use the standard IAIABC header.

What transaction codes does Connecticut accept?

For 148(first reports) we accept IAIABC ‘00’ ‘02’ ‘CO’ and we accept ANSI ‘050’ ‘001’ ‘002’ ‘026’.

Does Connecticut require the use of the Agency Claim Number?

No. If it is in your transmission, we will try to use it, but the primary access to our database is Date of Injury (DOI). We do not assign our own unique agency claim number to your first report.

What is the lag time for transmitting formats 148?

The first report transmissions must be sent within 7 days after the Date of Injury (DOI). The Commission accepts only first reports which have one or more lost work days. The date we use for the DATE RECEIVED is different than the IAIABC standard. We use the time stamp for the date that you write the data to the mailbox rather than the date that we download data. If you send data Friday night, we will load it to the database Tuesday night, but use Friday's date as the date received.

If data is in error, what is the procedure?

We evaluate the transmission on a claim-by-claim basis and load all of the ‘successful’ or ‘accepted with errors’ claims. ‘Accepted with errors’ means that the claim is accepted with errors on non-critical fields. Any claim that has a ‘fatal’ error (meaning that there was one or more errors that require us to reject the claim) is not loaded. Once rejected, you must fix the problem or problems and resubmit the claim as an correction. All of the errors are evaluated so you may have more than one error to fix.

What does 'Duplicate' mean?

In our system, a duplicate does not mean a duplicate EDI transmission. A duplicate is not a fatal error and does not affect your accuracy rating. In EDI, the employer no longer needs to report on paper, but may report in error. Because of this we may already have a report of the injury on paper from your insured before the EDI transmission arrives. We always check Date of Injury in our database. If we already have the injury reported, we will acknowledge your transmission as a duplicate. If it occurs, contact your insured and have them stop sending paper First Reports of Injury.

How do I transmit flat file data?

We have a mailbox on the Advantis network, formerly the IBM Information Net (IIN). We use this system because it is reliable, available 24 hours a day including a help desk, and has better security than a bulletin board.

The mailbox is really a large number of disk drives that can accept data regardless if we have an operator here or not. We do not have an operator in 2nd or 3rd shift. Many trading partners transmit to us during 3rd shift because the rates are cheaper. Once you have written data to our mailbox, we can download it at any time. Your data stays in our mailbox until we download it, then it is deleted.

You can transmit from any IBM, UNIX, or PC platform that has a modem. The mailbox handles ASCII / EBCDIC (PC to mainframe) conversions automatically, so it does not matter which platform sends or receives the data. We use Advantis software called PC/Expedite to receive and transmit data. Advantis has similar software for IBM mainframes or UNIX platforms. One mailbox can contain multiple 148 transmissions, provided they are in separate data files.

Does Connecticut accept the ANSI versions of the transmissions?

Yes. We have ANSI translator software and accept ANSI versions of the 148 transmissions through the Advantis networks. Your ANSI translator software reads the flat file and produces a compressed file for transmission. Our ANSI translator software reads the compressed ANSI file and produces an identical flat file. You cannot mix flat and ANSI transmissions in the same mailbox and you must use the IAIABC header and trailer.

To transmit, you need ANSI translator software that has the correct map (format) for 148 translations. Several companies sell translators, maps, and services that translate the flat file, then send it. The advantage of ANSI is that the data is compressed prior to transmission, so that the transmission rates are lower. Depending on the volume of transmissions, this may not be significant.

Does Connecticut send EDI acknowledgments?

Yes. We send acknowledgments on all transmissions (FROI) both 148 and ANSI using the IAIABC acknowledgment format. Trading partners can choose whether they would like both a paper and/or electronic acknowledgment report.

How often do I need to transmit data?

Sending daily, weekly, or several times per week is OK. You must transmit at least once per week to meet the 7 day reporting requirement. We download data Tuesday in the early afternoon and send acknowledgments back the same day.

How does security work?

Each trading partner has a mailbox with an account and user ID, protected by 2 passwords that are known only to the trading partner. We are the only ones who can read the data in our mailbox. No other trading partners can read any of your data in our mailbox and you cannot read their data. When we write acknowledgments to your mailbox, the same restrictions apply; we cannot read anything in your mailbox that we did not send.

When we are ready to receive data, we authorize transmissions from you into our mailbox by recording your account and user ID in our mailing list. You record our account and user ID in your mailing list. Unless both of these entries match, you will not be able to write data to our mailbox. This means that either partner can revoke permission by removing the specific account information from their mailing list. The mailing list is accessed through terminal emulation software, such as Procomm. It is set up once when the transmissions start and does not require any maintenance.

Who pays for the transmission?

You pay for all transmissions and acknowledgments. Payment for the transmission is determined by switches that are set in the mailing lists (see above). Both parties must agree on the switches before data can be sent or received.

How do I get access to Advantis?

Advantis access is available to you by calling (877) 326-6426 for Customer Service.

What software do I need to transmit data?

For transmitting flat files, you need one of the Expedite packages (PC/Expedite, UNIX/Expedite, MVS/Expedite, etc.) and Procomm (or similar terminal emulation software) on a PC. For ANSI, you need a translator based on a PC, UNIX, or mainframe that includes transmission software.

Click here to read the EDI Participation Letter.

Click here to view the First Report Format.
(in Adobe Acrobat's PDF Format)

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State of Connecticut Workers' Compensation Commission, Stephen M. Morelli, Chairman
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State of Connecticut
Workers' Compensation Commission
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