AMA CPT® Assistant - 2010 Issue 9 (September)
Appendix I: Genetic Testing Code Modifiers (September 2010)
September 2010 page 9dd Appendix I: Genetic Testing Code Modifiers Question: May modifier 1Z, Sarcoma gene, not otherwise specified , be appended to molecular diagnostic codes to report ribonucleic acid (RNA) testing for neoplasms for which no specific modifier exists? Answer: Genetic testing modifier 0Z, Solid tumor gene, not otherwise specified , modifier 1Z, Sarcoma gene, not otherwise specified , or modifier 2Z, Lymphoid/hematopoietic neoplasia, not otherwise specified , would be appropriate to append to molecular diagnostic testing codes depending on the type of neoplasm for which the genetic testing is being performed. Use of modifier 1Z indicates the type of neoplasm being...
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Article Overview
This brief CPT Assistant appendix addresses genetic testing modifier guidance for molecular diagnostic testing codes. It is relevant to coders, compliance staff, and laboratory billing personnel working with genetic test reporting for neoplasm-related services and seeking to understand the scope of modifier use discussed in the article.
Why This Topic Matters
Accurate modifier selection affects how genetic testing services are reported and interpreted in claims and documentation workflows. The article helps readers understand which general modifier categories are discussed for different neoplasm contexts.
What You Will Learn
- The general topic of genetic testing modifier use in molecular diagnostic testing
- How the article frames modifier selection by broad neoplasm category
- The context in which RNA-based and DNA-based testing are discussed at a high level
- The reporting focus of a CPT Assistant appendix on genetic testing modifiers
Who Should Read This
- Medical coders
- Billing staff
- Compliance professionals
- Molecular pathology laboratory staff
- Genetic testing service billers
Modifiers Discussed
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