Gestational Surrogacy
Billing Guide
Gestational surrogacy billing involves two distinct patients — the intended parent and the gestational carrier — each with separate insurance coordination, different CPT codes, and distinct ICD-10 diagnoses. Getting the claim routing wrong is one of the most consequential billing errors a fertility practice can make. This guide covers how to correctly split billing responsibilities, code each service, and handle insurance coordination for both parties.
Who Bills What: IP vs. Gestational Carrier
The fundamental rule: bill services to the patient on whose body they were performed. Egg retrieval and embryo creation = intended parent. Embryo transfer and endometrial preparation = gestational carrier.
Key Surrogacy Billing Rules
All services performed on the gestational carrier — endometrial monitoring ultrasounds, progesterone levels, and the embryo transfer itself (58976) — are billed with the GC as the patient. The GC's insurance is primary for those services if her plan covers fertility treatment. The intended parent's insurance never covers services performed on the GC's body.
Egg retrieval, fertilization, embryo culture, cryopreservation, and PGT are all performed on or with the intended parent's genetic material. These services are billed to the IP (or IP's insurance) with the IP as the patient. The IP's NPI and insurance information is used for these claims.
Most gestational carrier insurance contracts exclude services performed as part of a surrogacy arrangement. Some GCs have plans that cover FET and monitoring without knowing the cycle is part of a surrogacy. This is a legally sensitive area — consult your practice's legal counsel on disclosure obligations in your state.
When billing for the gestational carrier, use Z31.7 (encounter for procreative management, gestational surrogate) to identify the surrogacy context. For the intended parent, use the applicable infertility diagnosis (N97.x, N46.x) plus Z31.7 as appropriate to the clinical scenario.
If both the intended parent and the gestational carrier have insurance coverage for their respective services, claims coordination between two separate payers across two patients becomes a significant administrative challenge. Establish clear intake protocols to document which party is responsible for which service before treatment begins.
CPT Codes by Service and Party
| Phase | Codes | Bill To |
|---|---|---|
| IP — Ovarian stimulation monitoring | 76830, 99213–99215 | Intended Parent |
| IP — Egg retrieval | 58970, 76948 | Intended Parent |
| IP/Donor — ICSI | 89280, 89281 | Intended Parent |
| IP — Embryo culture (blastocyst) | 89251 | Intended Parent |
| IP — Embryo cryopreservation | 89258 | Intended Parent |
| IP — PGT biopsy | 89290, 89291 | Intended Parent |
| GC — Endometrial monitoring (ultrasound) | 76830 | Gestational Carrier |
| GC — Endometrial monitoring (estradiol) | 82670 | Gestational Carrier |
| GC — Embryo thaw | 89352 | Gestational Carrier |
| GC — Frozen embryo transfer | 58976 | Gestational Carrier |
Common Surrogacy Billing Pitfalls
Billing the gestational carrier's FET to the intended parent's insurance
The gestational carrier is the patient for all services performed on her body, including the embryo transfer and endometrial preparation. Billing those services to the IP's insurance — or under the IP's name — is incorrect and potentially fraudulent. Always use the correct patient identity and insurance for each service.
Using fresh transfer code (58974) for GC FET
Gestational carrier cycles are always frozen embryo transfers — embryos are created in the IP's stimulation cycle, cryopreserved, and transferred to the GC in a separate FET cycle. Always use 58976. Using 58974 will result in denial because the clinical record will show the GC had no egg retrieval.
Missing the Z31.7 diagnosis code for surrogacy billing
Z31.7 (encounter for procreative management, gestational surrogate) is the correct ICD-10 code to identify surrogacy-context billing. Omitting it when billing GC services can create confusion about the nature of the claim and lead to incorrect adjudication.
Assuming the GC's insurance will cover the FET
Most commercial insurance plans exclude services rendered as part of a surrogacy arrangement, even if the plan would otherwise cover fertility treatment. Never assume the GC's FET is covered — verify explicitly before scheduling and have a clear self-pay protocol for uncovered GC services.
Related Third-Party Reproduction Guides
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