National Correct Coding Initiative (NCCI) – CO-B10 or CO-B15 Denials

Starting February 1st, 2020, providers may notice more frequent CO-B10 or CO-B15 denials on your remittance advice for Column 1 (Comprehensive or major codes) billed when a Column 2 (Secondary or component code) has already been billed on the same day by the same provider. Historically these claims have been paid at a reduced rate without correct modifiers submitted. Effective February 1st, 2020, these will be denied with CO-B10 or CO-B15.

Source: https://med.noridianmedicare.com/web/jeb/article-detail/-/view/10525/national-correct-coding-initiative-ncc-1