We’re making updates to help you identify and resolve certain electronic claim submission errors more quickly
Act
by Jul 1, 2026
Effective date
Jul 1, 2026
Identified
Jun 2, 2026
Summary
Cigna Healthcare is implementing real-time claim rejection for EDI submissions with unacceptable primary diagnosis codes starting July 1, 2026. Claims with invalid primary diagnoses will be rejected at submission (not after processing) and returned with specific error codes A7 and 255 for immediate correction.
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Medical practices use PolicyChanges to catch payer changes before they cause denials. Every change is summarized in plain English, with the codes involved, the date it takes effect and what to do.