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CPT Add-On Codes: Our 6 Steps Add Up to Mastery

Posted on 03. Mar, 2009 by in Toolkit

Although CPT’s “add-on” designation applies to many procedures and services — from E/M to surgical procedures to equipment use — all add-on codes share the following characteristics:

• The CPT manual denotes them with a “+” to the code’s left

• The CPT code descriptor includes some version of the phrase “list separately in addition to code for primary procedure”

‘Add-On’ a CPC to your name & add money to your pocket.

• You should always use them with a “primary” procedure (parent code)

• You should never list them as a primary procedure

• You should never list them with modifier 51 (Multiple procedures) appended

• Carriers should not lower payment as a multiple-procedure reduction.

© Oncology & Hematology Coding Alert

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