Medical billing CPT modifiers and list of medicare modifier.: CPT ...
by Lori
CPT modifiers are used to provide additional information to insurance payers for procedures or services that have been altered or "modified" in some way. CPT modifiers can be 2 digit numbers ranging from 21 to 99, two character modifiers, or alpha-numeric. The numbering order of modifiers does not necessarily mean modifiers are related to one another just because the numbers are adjacent. New modifiers were assigned based on the availability of numbers with no clear link to the established modifiers....
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