HCPCS Level II · Temporary national codes (non-Medicare)
S4018Frozen embryo transfer procedure cancelled before transfer, case rate
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Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About S4018
S4018 is an HCPCS Level II code in the S series (temporary national codes (non-Medicare)), describing frozen embryo transfer procedure cancelled before transfer, case rate.
It was added to HCPCS effective 01/01/2002.
Its Medicare coverage code is "I", meaning it is not payable by Medicare (another code or method is used).
Details
- Short description
- F emb trns canc case rate
- Date added
- 01/01/2002
- Action effective
- 01/01/2002
- BETOS
- Z2
Related S40xx codes
- S4005Interim labor facility global (labor occurring but not resulting in delivery)
- S4011In 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
- S4013Complete cycle, gamete intrafallopian transfer (gift), case rate
- S4014Complete cycle, zygote intrafallopian transfer (zift), case rate
- S4015Complete in vitro fertilization cycle, not otherwise specified, case rate
- S4016Frozen in vitro fertilization cycle, case rate
- S4017Incomplete cycle, treatment cancelled prior to stimulation, case rate
- S4020In vitro fertilization procedure cancelled before aspiration, case rate
- S4021In vitro fertilization procedure cancelled after aspiration, case rate
- S4022Assisted oocyte fertilization, case rate
- S4023Donor egg cycle, incomplete, case rate
- S4024Air polymer-type a intrauterine foam, per study dose
Common questions about S4018
Is HCPCS S4018 still valid?
- Yes. S4018 is active in the CMS October 2026 HCPCS file.
Does Medicare cover S4018?
- Its coverage code is "I": it is not payable by Medicare (another code or method is used). Check the local coverage determination for your region.