Are you an independent laboratory, physician office laboratory, or hospital outreach laboratory that meets the definition of an applicable laboratory under the Clinical Laboratory Fee Schedule (CLFS)? If so, you must report your data by July 31, 2026, or you may be subject to civil monetary penalties. Report data from January 1 - June 30, 2025, including:

• Applicable HCPCS codes
• Associated private payor rates
• Volume data

How do I report?

1. Review CLFS Data Collection System resources:
• Identity Management Registration Guide (PDF)
• Submitter: User manual (PDF) and demo video
• Certifier: User manual (PDF) and demo video
2. View the applicable HCPCS codes (ZIP)
3. Use the Data Reporting Template (ZIP); see training video

CMS updated section 4 of the FAQs (PDF), including:

• Where can I find the laboratory tests subject to the data collection and data reporting requirements? - Revised
• Should we report each individual payor rate or the total amount of payment collected? - New
• Can I upload multiple files for my TIN? - New

More Information:

• CLFS & PAMA Reporting and Resources webpage
• CLFS: Reporting Private Payor Data (PDF) booklet
• Is My Lab an Applicable Lab? video

Resource: CMSMLN Connects dated July 23, 2026