Coding
CPT Modifiers
Every modifier that regularly appears on claims, with correct usage.
Modifiers change how a claim is priced and whether a bundled service is paid separately. Used correctly they are routine; used as a workaround they are the fastest way to attract an audit.
This reference covers the modifiers that appear most often — 25, 59 and the X{EPSU} set, 26 and TC, 50, 51, 76 and 77, 95 and 93, GA, GT, and the rest — with the documentation each one requires.
More on coding
Modifier rules, E/M level selection, NCCI edits and annual code set changes, covered article by article.
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