CS HCPCS Level II modifier: Cost-sharing waived for specified covid-19 testing-related services that result in and order for or administration of a covid-19 test and/or used for…

CS is a HCPCS Level II modifier: “Cost-sharing waived for specified covid-19 testing-related services that result in and order for or administration of a covid-19 test and/or used for cost-sharing waived preventive services….” It adds this detail to the code it is reported with.

Official description

CS

Cost-sharing waived for specified covid-19 testing-related services that result in and order for or administration of a covid-19 test and/or used for cost-sharing waived preventive services furnished via telehealth in rural health clinics and federally qualified health centers during the covid-19 public health emergency

Short description: Cost share waiver covid-19

HCPCS · United States

Medicare details

The indicators CMS publishes with CS in its October 2026 file. They describe Medicare’s handling, not another payer’s.

Medicare coverage
Carrier judgment
Added
Jan 1, 2011

Where CS sits

  1. 1GroupHCPCS modifiers
  2. 2Modifier CSCost-sharing waived for specified covid-19 testing-related services that result in and order for or administration of a covid-19 test and/or used for cost-sharing waived preventive services furnished via telehealth in rural health clinics and federally qualified health centers during the covid-19 public health emergency

Source and release

Data release
HCPCS Level II · October 2026
Effective date
Oct 1, 2026
Publisher
CMS

This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

Frequently asked questions

What does HCPCS code CS mean?

CS is the HCPCS code for “Cost-sharing waived for specified covid-19 testing-related services that result in and order for or administration of a covid-19 test and/or used for cost-sharing waived preventive services furnished via telehealth in rural health clinics and federally qualified health centers during the covid-19 public health emergency” in CMS’s HCPCS Level II October 2026 release.

Where is CS in the HCPCS Level II list?

CS is listed under Modifiers.

Does Medicare cover CS?

CMS lists CS’s Medicare coverage as “Carrier judgment”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.

Which HCPCS Level II release does this page use?

It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.