US · guidance
CMS Pub. 100-04, ch. 24, § 50.5
EDI Testing Accuracy
All claim submitters must produce accurate electronic test claims before allowed to
submit HIPAA format claim transactions in production. All submitters must send the
A/B MAC or CEDI a test file containing at least 25 claims, which are representative of
their practice or services. A/B MACs and CEDI may, based on individual consideration,
increase or decrease the number of claims required to adequately test any given
submitter. A/B MACs and CEDI will subject test claims to standard syntax and IG
semantic data edits and will provide documentation when edits detect errors.
• Standard syntax testing validates the programming of the incoming file and
includes file layout, record sequencing, balancing, alpha-numeric/numeric/date
file conventions, field values, and relational edits. Test files must pass 100
percent of the standard syntax edits before production is approved. An ASC X12
999 implementation acknowledgment will be used to validate compliance with
syntax data.
• IG Semantic Data testing validates data required for claims processing, e.g.,
procedure/diagnosis codes, modifiers. A submitter must demonstrate, at a
minimum, a 95 percent accuracy rate in data testing before production is approved
where, in the judgment of the A/B MAC or CEDI, the vendor/submitter will make
the necessary correction(s) prior to submitting a production file. An ASC X12
277CA claim acknowledgment will be used to validate compliance with semantic
data.
History
(Rev. 2803, Issued: 10-28-13, Effective: 09-17-13, Implementation: 09-17-13)
Provenance
- Source
- cms.gov
- Retrieved
- 2026-08-25
- Edition
- iom-2026-08-25
- Content hash
8e01cc9439514c2488956d5f6eaf9dea45234228095bab0bba617ddf254a2904
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