S3866 HCPCS Level II code: Genetic analysis for a specific gene mutation for hypertrophic cardiomyopathy (hcm) in an individual with a known hcm mutation in the family
S3866 is the HCPCS code for “Genetic analysis for a specific gene mutation for hypertrophic cardiomyopathy (hcm) in an individual with a known hcm mutation in the family” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
S3866Genetic analysis for a specific gene mutation for hypertrophic cardiomyopathy (hcm) in an individual with a known hcm mutation in the family
Short description: Spec gene test hyp cardiomy
HCPCS · United States
Medicare details
The indicators CMS publishes with S3866 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Not payable by Medicare
- Medicare pricing
- Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
- Type of service
- Other medical items or services
- BETOS category
- Undefined codes
- Added
- Apr 1, 2009
Where S3866 sits
- 1S codesTemporary national codes (non-Medicare)
- 2Active code S3866Genetic analysis for a specific gene mutation for hypertrophic cardiomyopathy (hcm) in an individual with a known hcm mutation in the family
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 S3866 mean?
S3866 is the HCPCS code for “Genetic analysis for a specific gene mutation for hypertrophic cardiomyopathy (hcm) in an individual with a known hcm mutation in the family” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover S3866?
CMS lists S3866’s Medicare coverage as “Not payable by Medicare” and its pricing as “Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)”. 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.
Codes beside S3866
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