This article provides guidance to physicians and non-physician practitioners (NPPs) regarding COVID-19 symptom and exposure assessment and specimen collection performed on and after March 1. Guidance provided addresses CPT 99211, modifier CS, and reprocessing of claims.

• Use CPT code 99211 to bill for assessment and collection provided by clinical staff (such as pharmacists) incident to your services, unless you are reporting another Evaluation and Management (E/M) code for concurrent services. This applies to all patients, not just established patients.
• Submit the CS modifier with 99211 (or other E/M code for assessment and collection).
• If CS modifier was inadvertently left off the claim, providers may make the correction on the Noridian Medicare Portal (NMP).
• Noridian will automatically reprocess claims billed for 99211 that were denied due to place of service editing.

If you have other questions about reprocessing claims, contact Noridian.

Source: CMS MLN Connects June 18, 2020