AMA CPT® Assistant - 1992 Issue 1 (Spring)
Use of the Bilateral Modifier (Spring 1992)
Spring 1992 page 19 Coding Tip Use of the Bilateral Modifier In 1991, many of the bilateral codes were deleted from CPT. This was done to standardize how bilateral procedures were reported. The intent of the CPT Editorial Panel is for all modifiers to be appended to the appropriate code as a one-line entry. Hence, the reader was directed to report the unilateral code with the -50 modifier appended to that code as a one-line entry on the claim form to indicate the procedure was performed bilaterally. For example: 49500-50 Alternatively, the unilateral code can be placed on the first...
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Article Overview
This article explains a CPT coding tip from Spring 1992 focused on bilateral procedure reporting and claim-form presentation. It is aimed at coders and billing staff who need to understand the general reporting approaches discussed for CPT-era claims processing and payer preferences. The piece gives a brief historical note, cites example claim layouts, and discusses the role of the CPT Editorial Panel in standardizing reporting.
Why This Topic Matters
It helps readers identify a historical CPT billing topic that may still affect how older guidance is understood and how bilateral procedure claims were reported in that period.
Article Sections
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Coding Tip
A short guidance section on bilateral procedure reporting in CPT and related claim-form conventions. It includes historical context and example formatting approaches.
What You Will Learn
- The historical context for bilateral procedure reporting in CPT
- How the article frames claim-form presentation for bilateral procedures
- Why payer-specific reporting preferences may matter in the context discussed
- How the article positions CPT Editorial Panel guidance at a general level
Who Should Read This
- Medical coders
- Billing staff
- Revenue cycle professionals
- Coding educators
Codes Discussed
Modifiers Discussed
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