CSHCPCS Level II
Cost-sharing waived for specified covid-19 testing-related services that result
- Usage notes
- Historically appended to certain COVID-19 testing-related services to waive patient cost-sharing under emergency provisions.
- Common mistakes
- Continuing to append CS after the underlying cost-sharing waiver provisions it was tied to have expired — check current payer policy before using it.
Related modifiers
CAProcedure payable only in the inpatient setting when performed emergently on anCBService ordered by a renal dialysis facility (rdf) physician as part of theCCProcedure code change (use 'cc' when the procedure code submitted was changedCDAmcc test has been ordered by an esrd facility or mcp physician that is part ofCEAmcc test has been ordered by an esrd facility or mcp physician that is aCFAmcc test has been ordered by an esrd facility or mcp physician that is notCGPolicy criteria appliedCH0 percent impaired, limited or restricted
Frequently asked questions
What does modifier CS mean?
Cost-sharing waived for specified covid-19 testing-related services that result
When do I use modifier CS?
Historically appended to certain COVID-19 testing-related services to waive patient cost-sharing under emergency provisions.
What's a common mistake with modifier CS?
Continuing to append CS after the underlying cost-sharing waiver provisions it was tied to have expired — check current payer policy before using it.
HCPCS modifier data from CMS. CPT® is a registered trademark of the American Medical Association — CPT modifier descriptions are not included on this site. Always verify codes with authoritative sources before making billing decisions.