Medicare Claims Processing Manual (Pub. 100-04), Ch. 24 § 60.1
A/B MACs, and CEDI Edit Requirements
60.1 - A/B MACs, and CEDI Edit Requirements
(Rev. 2803, Issued: 10-28-13, Effective: 09-17-13, Implementation: 09-17-13)
A/B MACs and CEDI are required to edit submitted transactions at the front end to
determine whether they are sufficiently complete to enable processing. Transactions that
are not legible, or do not include adequate data to be considered an acceptable EDI
transaction, must be rejected or returned as unprocessable. “Rejected” or “returned”
transactions are not classified as “received” by Medicare.
A/B MACs and CEDI are not required to assign a control number or a receipt date to
those transactions rejected or returned as unprocessable. Nor are they required to retain
any record of those transactions pending correction and resubmission by the original
sender. See § 50 and § 70 of this chapter for further editing and testing requirements.
CEDI is required to assign a control number and a receipt date to those claims
transactions accepted by CEDI. They are required to retain any record of those originally
submitted transaction pending correction and resubmission by the original sender. See §
50 and § 70 of this chapter for further editing and testing requirements.
A. Translation and Date of Receipt Editing
If a shared system detects an improper flat file format/size (incorrect record length,
record length exceeding 32,700 bytes, etc.), the flat file will be rejected back to the file’s
submitter (A/B MACs and CEDI) by the shared system with an appropriate error
message.
The date of receipt of a claim is the date a claim is received by the A/B MACs and CEDI
and not a subsequent date on which the claim may have been received by the shared
system. The date of receipt must be an actual calendar date and may not be all zeroes or
a future date. See § 80.2.1 of Chapter 1 of this manual for additional information on
establishing the date of receipt of a claim.
B. Implementation Guide (IG) Edits: ASC X12 Version 5010 and NCPDP Version
D.0
In conjunction with front-end translation, A/B MACs (A)are to also conduct IG edits to
identify submitted data elements that do not comply with data element requirements
added by the IG developers, using either software available from FISS or other software
which is able to edit at this level. A/B MAC (B) shared systems conduct IG edits for
transactions sent to the A/B MACs (B). CEDI conducts IG edits for transactions sent to
the DME MACs.
In many cases, IG edits are more restrictive than those established by the ASC X12
standard that served as the platform for development of the TR3. For instance, the ASC
X12 standard might allow a maximum of 30-digits in a data element, but an IG note
could limit the maximum size to 20-digits. Or the number of valid digits that may be
entered in a data element as identified by the qualifiers that apply to the data element,
might not permit reporting of more than 15-digits even though the standard permits up to
30-digits.
No national standards have been adopted under HIPAA for acknowledgment or error
reporting for any of the HIPAA format transactions. However, Medicare has adopted the
ASC X12 999 implementation acknowledgment and ASC X12 277CA claim
acknowledgment for this purpose effective with the implementation of version 5010. For
Version 5010 DME MACs will continue the use of proprietary error reporting for CMN
rejection reports, which are returned to DME submitters through CEDI. IG and Medicare
program error reports related to electronic transactions must be sent to the submitters of
those transactions electronically. IG level edits typically affect a small number of the
transactions in a batch. Whenever not precluded by the standard, A/B MACs and CEDI
are expected to reject individual transactions that are identified via IG edits and not reject
the entire batch of transactions in which those transactions were submitted.
A/B MACs (A) share IG editing responsibilities with FISS (shared system documentation
indicates which IG edits are conducted by the shared system). A/B MACs (B) shared
systems are responsible for IG editing of Part B professional transactions. CEDI is
responsible for IG editing of DME transactions. When editing for IG compliance, the
responsible party must verify that:
• Amounts, percentages, integers, and other fields designated in the IG as numeric
are right-justified and zero-filled if the incoming data are smaller than the
Medicare flat file field size;
• Fields designated in the IG as alphanumeric are left justified and space filled if the
incoming data are smaller than the Medicare flat file field size;
• All non-Medicare data field lengths correspond to the maximum IG length.
• Incoming alphanumeric non-Medicare data are left justified and space filled if the
data are smaller than the Medicare flat file field size;
• Incoming numeric non-Medicare data are right justified and zero-filled if the data
contain fewer integers than the Medicare flat file field size; and
• Non-Medicare data (and Medicare data elements where field sizes are in excess of
the core system) are mapped to the Medicare flat file (and later written to the
store-and-forward repository (SFR) by the shared system).