decisionhealth Newsletters, Answer Books - 2009 Issue 1 (January)
Add-On Codes / Don't use -51 on add-on codes
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Article Overview
This short coding article addresses CPT add-on coding conventions and the interaction between add-on services and the multiple-procedure modifier. It is aimed at coding professionals who need a quick refresher on billing structure, grouping, and the general reason certain reductions may already apply to these code types.
Why This Topic Matters
Understanding how add-on codes are handled helps reduce claim-edit problems and avoid unnecessary payment reductions. The article is relevant to coders who work with CPT reporting and multiple-procedure billing policies.
What You Will Learn
- How CPT add-on codes are treated in relation to multiple-procedure billing
- Why certain reduced-payment concepts are relevant to add-on services
- How an example set of lesion-destruction services is referenced to illustrate billing structure
- Where the CPT manual identifies add-on codes
Who Should Read This
- Medical coders
- Billing staff
- Coding auditors
- Revenue cycle professionals
Codes Discussed
Code Ranges Discussed
Modifiers Discussed
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