Question: We sometimes get denials that appear to be related to bundling issues but I can't find the two-code pair in the CCI edits. How can I find out which is the column 2 code so that I can put the modifier on the correct code? Texas Subscriber Answer: If you can't find the codes listed in the Correct Coding Initiative (CCI) edit tables, then they're not bundled under that system. Make sure you check both the mutually exclusive and non-mutually exclusive edit tables. If your code pair is not bundled under CCI, then you would not need a CCI modifier such as 25 (Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure or other service), 57 (Decision for surgery), or 59 (Distinct procedural service), to override the edit pair. Watch out: You can find Medicare's other allowed modifiers for any given CPT code in the Medicare physician fee schedule (MPFS). Columns Y-AC indicate if a modifier such as 50 (Bilateral procedure), etc. applies. This info is also in Codify's fee schedule information (https://www.aapc.com/codify/medicare-fee-schedules.aspx).