Quick coding chart: Drug screen tests — G0434 and G0431

Why This Topic Matters

Drug screen reporting can be denied or overpaid when the wrong service type, test complexity, or billing frequency is used. The article helps coding and billing teams understand the broader Medicare and compliance issues surrounding these tests.

Article Sections

1. Codes

   Introduces the service codes covered in the chart and presents their general labeling format for quick reference.

2. Lab fees (national limit)

   Summarizes national fee schedule information associated with the services discussed in the article.

3. CCI edits (19.2)

   Reviews claim-edit relationships and unbundling context tied to the services in the chart.

4. Coder’s notes

   Provides broader billing and compliance commentary for practices performing drug screen testing, including coverage, lab certification, and frequency considerations.

5. Make sure the kit is on the list

   Discusses the general need to confirm that a test kit meets waiver-related requirements and remains on the appropriate CMS list.