58976
Embryo Transfer — Frozen (FET)
Embryo transfer using a previously cryopreserved (frozen) embryo. This code applies to all frozen embryo transfer cycles regardless of when the embryo was frozen — whether from a recent freeze-all cycle or embryos in storage for years.
Billing Notes
58976 is the correct code for all FET cycles. 58974 applies only to fresh transfers. Embryo thaw (89352) is separately billable. Endometrial preparation monitoring visits (76830, 82670) are billed separately.
Diagnosis Codes
Common Denial Reasons
- 58974 submitted instead of 58976
- Authorization covers fresh cycle only — FET requires separate auth
- Missing embryo thaw documentation
Payer Notes
S4016 and S4017 are the FET cycle S codes for mandate payers. S4018 is for a cancelled FET cycle. Verify auth covers FET specifically — some plans require a separate authorization for frozen cycles.
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