Exhibit 23 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We consent to the incorporation by reference in the Registration Statements listed below of Per-Se Technologies, Inc. of our reports dated March 13, 2006, with respect to the consolidated financial statements and schedule of Per-Se Technologies, Inc., Per-Se Technologies, Inc.'s management's assessment of the effectiveness of internal control over financial reporting, and the effectiveness of internal control over financial reporting of Per-Se Technologies, Inc. included in this Annual Report (Form 10-K) for the year ended December 31, 2005: 1. Registration Statement Number 33-46847 on Form S-8 2. Registration Statement Number 33-64952 on Form S-8 3. Registration Statement Number 33-67752 on Form S-8 4. Registration Statement Number 33-71556 on Form S-8 5. Registration Statement Number 33-88442 on Form S-8 6. Registration Statement Number 33-88444 on Form S-8 7. Registration Statement Number 33-90874 on Form S-8 8. Registration Statement Number 33-90876 on Form S-8 9. Registration Statement Number 33-95742 on Form S-8 10. Registration Statement Number 33-95746 on Form S-8 11. Registration Statement Number 33-95748 on Form S-8 12. Registration Statement Number 333-03213 on Form S-8 13. Registration Statement Number 333-07201 on Form S-8 14. Registration Statement Number 333-07203 on Form S-8 15. Registration Statement Number 333-07627 on Form S-8 16. Registration Statement Number 333-26113 on Form S-8 17. Registration Statement Number 333-26289 on Form S-8 18. Registration Statement Number 333-26291 on Form S-8 19. Registration Statement Number 333-37150 on Form S-8 20. Registration Statement Number 333-37152 on Form S-8 21. Registration Statement Number 333-46489 on Form S-8 22. Registration Statement Number 333-60729 on Form S-8 23. Registration Statement Number 333-65016 on Form S-8 24. Registration Statement Number 333-78167 on Form S-8 25. Registration Statement Number 333-87902 on Form S-8 26. Registration Statement Number 333-105111 on Form S-8 27. Registration Statement Number 333-105110 on Form S-8 28. Registration Statement Number 333-94151 on Form S-8 /s/ Ernst & Young LLP Atlanta, Georgia March 13, 2006