S3904 – Masters two step
HCPCS Level II code · S codes: Temporary National Codes (Non-Medicare)
HCPCS codeS3904
- Long description
- Masters two step
- Short description
- Masters two step
- 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, 2001
- Last change
- January 1, 2001 – No change
Frequently asked questions
What is HCPCS code S3904?
S3904 is a HCPCS Level II code for masters two step.
Does Medicare cover S3904?
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
- S3855 – Genetic testing for detection of mutations in the presenilin - 1 gene
- 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
- S4005 – Interim labor facility global (labor occurring but not resulting in delivery)
- S4011 – In vitro fertilization; including but not limited to identification and incubation of mature oocytes, fertilization with sperm, incubation of embryo(s), and subsequent visualization for determination of development
- S4013 – Complete cycle, gamete intrafallopian transfer (gift), case rate
- S4014 – Complete cycle, zygote intrafallopian transfer (zift), case rate
- S4015 – Complete in vitro fertilization cycle, not otherwise specified, case rate
- S4016 – Frozen in vitro fertilization cycle, case rate
- S4017 – Incomplete cycle, treatment cancelled prior to stimulation, case rate
- S4018 – Frozen embryo transfer procedure cancelled before transfer, case rate
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.