S3866 – Genetic analysis for a specific gene mutation for hypertrophic cardiomyopathy (hcm) in an individual with a known hcm mutation in the family

HCPCS Level II code · S codes: Temporary National Codes (Non-Medicare)

Active code Not payable by Medicare

HCPCS codeS3866
Long description
Genetic 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
Pricing indicator
00 Not separately priced by Part B (bundled, not covered or Part A only)
Medicare coverage
I Not payable by Medicare
BETOS category
Z2 Undefined codes
Added
April 1, 2009
Last change
April 1, 2009 – No change

Frequently asked questions

What is HCPCS code S3866?

S3866 is a HCPCS Level II code for genetic analysis for a specific gene mutation for hypertrophic cardiomyopathy (hcm) in an individual with a known hcm mutation in the family.

Does Medicare cover S3866?

The HCPCS file lists coverage code I: Not payable by Medicare. Coverage and payment also depend on local coverage determinations and the patient’s plan.

Nearby S codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.