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CPT 58974: Embryo Transfer After 48–72 Hour Laboratory Culture

CPT code 58974 denotes embryo transfer of fertilized eggs that have been cultured for 48 to 72 hours to permit early cell development. This assisted reproductive technology procedure is a core step in in vitro fertilization (IVF) workflows and carries national relevance due to growing utilization of fertility services, evolving coverage policies, and variable payer reimbursement practices. The code signals a discrete clinical intervention that impacts episode-level billing and patient care pathways in outpatient fertility centers and ambulatory surgical settings.

Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise review of what CPT code 58974 represents clinically, the typical sites of service, and which major payers commonly appear in coverage discussions. The publication outlines expected benchmarks and policy considerations relevant to this service line and summarizes clinical context needed to interpret billing and utilization patterns.

This piece is intended to inform billing managers, policy analysts, and clinical leaders about the code’s role in assisted reproduction, common payer involvement, and areas where policy updates or coverage variations frequently arise. Data not available in the input for specific modifiers, taxonomies, ICD-10 pairings, or related CPT codes is noted where applicable.

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Billing Code Overview

CPT code 58974 describes the placement of fertilized eggs in the uterus after a 48- to 72-hour laboratory culture period to allow early embryonic cell development. This procedure is an embryo transfer performed after brief in vitro culture following fertilization.

Service type: Assisted reproductive procedure (embryo transfer following 48–72 hours of laboratory culture)
Typical site of service: Outpatient fertility clinic or ambulatory surgical center where assisted reproductive technology procedures are performed

Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.

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CPT 58974: Embryo Transfer After 48–72 Hour Laboratory Culture

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Billing Code Overview

Service type: Assisted reproductive procedure (embryo transfer following 48–72 hours of laboratory culture)
Typical site of service: Outpatient fertility clinic or ambulatory surgical center where assisted reproductive technology procedures are performed

Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.

Clinical & Coding Specifications

Clinical Context

A typical patient is a woman or intended parent undergoing assisted reproductive technology after evaluation for infertility. She presents to a fertility clinic on the day of embryo transfer following ovarian stimulation, egg retrieval, in vitro fertilization, and culture of embryos for 48–72 hours. The clinical workflow includes pretransfer counseling and consent, confirmation of embryo viability and selection by the reproductive endocrinologist and embryology team, bladder preparation as required, a transvaginal or transcervical catheter-based embryo transfer procedure under ultrasound guidance in an outpatient ambulatory surgery center or fertility clinic procedure room, and brief postprocedure observation. Indications commonly include tubal factor infertility, male factor infertility, unexplained infertility, ovulatory disorders, or previous failed intrauterine insemination. The procedure documented as 58974 specifically describes placement of embryos after 48–72 hours of laboratory culture (cleavage-stage transfer). Typical site of service is an ambulatory surgical center, hospital outpatient department, or specialized fertility clinic procedure suite. Patient monitoring immediately postprocedure focuses on vital signs, reassurance, brief activity restrictions, and instructions for luteal phase support medications and follow-up pregnancy testing.

Coding Specifications

Modifier	Description	When to Use
`25`	Significant, separately identifiable evaluation and management service by the same physician on the day of a procedure	Use when a distinct E/M visit is performed and documented on the same day as the transfer (e.g., urgent counseling or medical decision-making separate from the transfer).
`26`	Professional component	Use when reporting only the physician professional interpretation or performance component separate from technical services (rare for this procedure).
`59`	Distinct procedural service	Use to indicate a separate, distinct service when another procedure on the same day is not typically bundled, and documentation supports separate performance.
`62`	Two surgeons	Use when two surgeons of different specialties work together as primary surgeons for a complex procedure requiring both.
`63`	Procedure performed on infants less than 4 kg	Use only if the transfer is performed on a neonate meeting the weight criteria (rare/unlikely).
`66`	Surgical team	Use when a surgical team model is documented and appropriate for the procedure.
`76`	Repeat procedure by same physician	Use when the same physician repeats the embryo transfer procedure during the same session or encounter (if clinically necessary).
`77`	Repeat procedure by another physician	Use when a different physician repeats the transfer during the same encounter.
`78`	Unplanned return to the operating/procedure room by the same physician following initial procedure for a related procedure during the postoperative period	Use if complications require urgent return to procedure room related to the initial transfer.
`79`	Unrelated procedure or service by the same physician during the postoperative period	Use when an unrelated procedure is performed during the postoperative period.
`52`	Reduced services	Use when the procedure is partially reduced or not completed as planned and documentation supports a reduced service.
`53`	Discontinued procedure	Use when the procedure is terminated due to extenuating circumstances or patient request.
`76`	Repeat procedure by same physician	Use when a repeat transfer is performed during the same operative session; document reason.
`QX`	Qualified non-physician practitioner billing with modifier QX as part of supervision requirement	Use when applicable laboratory or clinical services are performed by a practitioner requiring modifier linkage to the supervising physician (applicable in some payer policies).

Taxonomy Code	Specialty	Notes
2084P0800X	Reproductive Endocrinology/Infertility	Reproductive endocrinologists commonly perform embryo transfer procedures.
207V00000X	Obstetrics & Gynecology	General OB/GYNs with fertility training may perform transfers in fertility programs.
363A00000X	Clinical Laboratory	Embryology laboratory staff and embryologists perform embryo culture and technical aspects prior to transfer.
207L00000X	Maternal & Fetal Medicine	MFM specialists may be involved in complex cases or high-risk patients requiring specialized management.
331J00000X	Ambulatory Surgery Center	Facility taxonomy representing sites where transfers may occur if performed in an ASC setting.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`N97.9`	Female infertility, unspecified	Common indication for IVF and embryo transfer when infertility is the primary diagnosis.
`N97.1`	Female infertility associated with anovulation	Anovulation as a cause of infertility often leads to assisted reproductive technology including embryo transfer.
`N97.0`	Female infertility due to tubal origin	Tubal factor infertility is an indication for IVF with embryo transfer bypassing tubal pathology.
`N46`	Male infertility	Male factor infertility frequently leads to IVF with sperm retrieval and embryo transfer.
`O09.89`	Supervision of high-risk pregnancy, other (use as follow-up in embryo transfer cycles progressing to pregnancy)	Used when pregnancies conceived via ART require high-risk surveillance; relevant after successful transfer.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`58321`	Removal of intrauterine device (IUD)	May be performed prior to embryo transfer when an IUD is present and removal is required for transfer.
`58976`	Placement of fertilized eggs in the uterus after 5 days of laboratory culture (blastocyst transfer)	Alternative timing of embryo transfer when embryos are cultured to day 5; clinically related as a different transfer timing option.
`89250`	Embryo culture, up to day 3 (cleavage stage)	Laboratory service that covers culture and monitoring of embryos through 48–72 hours prior to `58974`.
`58970`	Assisted reproductive services; oocyte retrieval	Performed previously in the IVF cycle to obtain oocytes that are fertilized and cultured prior to transfer.
`87490`	Semen analysis, automated; and `89329`	(Note: multiple semen analysis codes exist) Semen evaluation and related laboratory testing performed as part of infertility workup prior to IVF and transfer.

CPT 58970: Transvaginal Oocyte Retrieval by Needle Aspiration

CPT-58976-TUBAL-GAMETE-ZYGOTE-EMBRYO-TRANSFER

CPT 58976: Tubal Transfer of Gamete, Zygote, or Embryo

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`25`	Significant, separately identifiable evaluation and management service by the same physician on the day of a procedure	Use when a distinct E/M visit is performed and documented on the same day as the transfer (e.g., urgent counseling or medical decision-making separate from the transfer).
`26`	Professional component	Use when reporting only the physician professional interpretation or performance component separate from technical services (rare for this procedure).
`59`	Distinct procedural service	Use to indicate a separate, distinct service when another procedure on the same day is not typically bundled, and documentation supports separate performance.
`62`	Two surgeons	Use when two surgeons of different specialties work together as primary surgeons for a complex procedure requiring both.
`63`	Procedure performed on infants less than 4 kg	Use only if the transfer is performed on a neonate meeting the weight criteria (rare/unlikely).
`66`	Surgical team	Use when a surgical team model is documented and appropriate for the procedure.
`76`	Repeat procedure by same physician	Use when the same physician repeats the embryo transfer procedure during the same session or encounter (if clinically necessary).
`77`	Repeat procedure by another physician	Use when a different physician repeats the transfer during the same encounter.
`78`	Unplanned return to the operating/procedure room by the same physician following initial procedure for a related procedure during the postoperative period	Use if complications require urgent return to procedure room related to the initial transfer.
`79`	Unrelated procedure or service by the same physician during the postoperative period	Use when an unrelated procedure is performed during the postoperative period.
`52`	Reduced services	Use when the procedure is partially reduced or not completed as planned and documentation supports a reduced service.
`53`	Discontinued procedure	Use when the procedure is terminated due to extenuating circumstances or patient request.
`76`	Repeat procedure by same physician	Use when a repeat transfer is performed during the same operative session; document reason.
`QX`	Qualified non-physician practitioner billing with modifier QX as part of supervision requirement	Use when applicable laboratory or clinical services are performed by a practitioner requiring modifier linkage to the supervising physician (applicable in some payer policies).

Taxonomy Code	Specialty	Notes
2084P0800X	Reproductive Endocrinology/Infertility	Reproductive endocrinologists commonly perform embryo transfer procedures.
207V00000X	Obstetrics & Gynecology	General OB/GYNs with fertility training may perform transfers in fertility programs.
363A00000X	Clinical Laboratory	Embryology laboratory staff and embryologists perform embryo culture and technical aspects prior to transfer.
207L00000X	Maternal & Fetal Medicine	MFM specialists may be involved in complex cases or high-risk patients requiring specialized management.
331J00000X	Ambulatory Surgery Center	Facility taxonomy representing sites where transfers may occur if performed in an ASC setting.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`N97.9`	Female infertility, unspecified	Common indication for IVF and embryo transfer when infertility is the primary diagnosis.
`N97.1`	Female infertility associated with anovulation	Anovulation as a cause of infertility often leads to assisted reproductive technology including embryo transfer.
`N97.0`	Female infertility due to tubal origin	Tubal factor infertility is an indication for IVF with embryo transfer bypassing tubal pathology.
`N46`	Male infertility	Male factor infertility frequently leads to IVF with sperm retrieval and embryo transfer.
`O09.89`	Supervision of high-risk pregnancy, other (use as follow-up in embryo transfer cycles progressing to pregnancy)	Used when pregnancies conceived via ART require high-risk surveillance; relevant after successful transfer.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`58321`	Removal of intrauterine device (IUD)	May be performed prior to embryo transfer when an IUD is present and removal is required for transfer.
`58976`	Placement of fertilized eggs in the uterus after 5 days of laboratory culture (blastocyst transfer)	Alternative timing of embryo transfer when embryos are cultured to day 5; clinically related as a different transfer timing option.
`89250`	Embryo culture, up to day 3 (cleavage stage)	Laboratory service that covers culture and monitoring of embryos through 48–72 hours prior to `58974`.
`58970`	Assisted reproductive services; oocyte retrieval	Performed previously in the IVF cycle to obtain oocytes that are fertilized and cultured prior to transfer.
`87490`	Semen analysis, automated; and `89329`	(Note: multiple semen analysis codes exist) Semen evaluation and related laboratory testing performed as part of infertility workup prior to IVF and transfer.

CPT 58970: Transvaginal Oocyte Retrieval by Needle Aspiration

CPT-58976-TUBAL-GAMETE-ZYGOTE-EMBRYO-TRANSFER

CPT 58976: Tubal Transfer of Gamete, Zygote, or Embryo

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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CPT 58974: Embryo Transfer After 48–72 Hour Laboratory Culture

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Billing Code Overview

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CPT 58974: Embryo Transfer After 48–72 Hour Laboratory Culture

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Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References