S3855 – Genetic testing for detection of mutations in the presenilin - 1 gene
HCPCS Level II code · S codes: Temporary National Codes (Non-Medicare)
HCPCS codeS3855
- Long description
- Genetic testing for detection of mutations in the presenilin - 1 gene
- Short description
- Gene test presenilin-1 gene
- Pricing indicator
00Not separately priced by Part B (bundled, not covered or Part A only)- Medicare coverage
INot payable by Medicare- BETOS category
Z2Undefined codes- Added
- January 1, 2007
- Last change
- January 1, 2015 – No change
- Termination date
- December 31, 2014
Frequently asked questions
What is HCPCS code S3855?
S3855 is a HCPCS Level II code for genetic testing for detection of mutations in the presenilin - 1 gene. It was discontinued on December 31, 2014.
Does Medicare cover S3855?
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
- S3844 – Dna analysis of the connexin 26 gene (gjb2) for susceptibility to congenital, profound deafness
- S3845 – Genetic testing for alpha-thalassemia
- S3846 – Genetic testing for hemoglobin e beta-thalassemia
- S3849 – Genetic testing for niemann-pick disease
- S3850 – Genetic testing for sickle cell anemia
- S3852 – Dna analysis for apoe epsilon 4 allele for susceptibility to alzheimer's disease
- S3853 – Genetic testing for myotonic muscular dystrophy
- S3854 – Gene expression profiling panel for use in the management of breast cancer treatment
- S3861 – Genetic testing, sodium channel, voltage-gated, type v, alpha subunit (scn5a) and variants for suspected brugada syndrome
- S3865 – Comprehensive gene sequence analysis for hypertrophic cardiomyopathy
- S3866 – Genetic analysis for a specific gene mutation for hypertrophic cardiomyopathy (hcm) in an individual with a known hcm mutation in the family
- S3870 – Comparative genomic hybridization (cgh) microarray testing for developmental delay, autism spectrum disorder and/or intellectual disability
- S3890 – Dna analysis, fecal, for colorectal cancer screening
- S3900 – Surface electromyography (emg)
- S3902 – Ballistocardiogram
- S3904 – Masters two step
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.