Summary & Overview
CPT 89352: Thawing of Cryopreserved Embryos
CPT code 89352 represents the laboratory procedure of thawing one or more cryopreserved embryos stored for a female patient for later use in assisted reproductive treatment. This code captures a discrete embryology lab service that is central to in vitro fertilization (IVF) cycles and other fertility procedures where previously frozen embryos are transferred. Nationally, accurate coding of embryo thawing affects billing consistency, reporting of laboratory activity, and patient cost-sharing for fertility services.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines how CPT code 89352 is used in clinical workflows, the typical sites where the service is delivered, and payer coverage considerations. It also summarizes available benchmarks and coding practices where data exists and notes when input data are not available.
Readers will find a concise explanation of the clinical context for thawing cryopreserved embryos, the service line classification, and typical site-of-service information. The report highlights areas relevant to reimbursement and billing operations, including common modifiers (listed separately) and how the code relates to embryology laboratory throughput. Data not available in the input are identified as such; no missing fields are invented.
Billing Code Overview
CPT code 89352 describes the laboratory service of thawing one or more cryopreserved embryos previously stored for a female patient for later use. The core activity is embryo thawing and preparation for assisted reproductive procedures.
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Service type: Laboratory reproductive services (embryology laboratory procedure)
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Typical site of service: Fertility clinic or hospital-based embryology laboratory where in vitro fertilization (IVF) and related assisted reproductive technologies are performed.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 34-year-old patient with a prior in vitro fertilization (IVF) cycle presents to the assisted reproductive technology (ART) laboratory on the day of a planned frozen embryo transfer (FET). The fertility clinic coordinated the cycle and the reproductive endocrinologist ordered thawing of one or more cryopreserved embryos previously vitrified and stored at the facility. On arrival, nursing staff confirm patient identity, cycle protocol (natural or medicated), and embryo selection per consent. The lab analyst retrieves the cryostorage container, performs controlled warming and stepwise dilution of cryoprotectants, assesses embryo survival and quality under microscopy, documents the number and developmental stage of embryos post-thaw, and communicates findings to the clinical team for embryo transfer scheduling. Typical sites of service are the outpatient fertility clinic, hospital-based reproductive medicine unit, or an independent ART laboratory. The service is billed when the laboratory performs the technical thaw procedure; it does not include embryo transfer, anesthesia, or physician evaluation, which are reported separately.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier | Default when no special circumstances apply |
22 | Increased procedural services | Use when thawing requires substantially greater work due to complexity (rare) |
26 | Professional component | Use if reporting the professional interpretation or assessment separate from technical thaw (uncommon) |
52 | Reduced services | Use when thawing service is partially performed or limited (e.g., aborted before full thaw) |
53 | Discontinued procedure | Use when thawing is started but stopped for patient safety or specimen concern |
59 | Distinct procedural service | Use when thawing is a separately identifiable service on the same day as other procedures |
90 | Reference (Outside) Laboratory | Use when the thawing is performed by an outside laboratory and only reference testing is billed |
AS | Physician assistant, nurse practitioner, or clinical nurse specialist services | Use when a qualifying non-physician practitioner provides the professional component of the service |
TC | Technical component | Use when billing only the laboratory technical component of thawing |
TG | Service performed under a global maternity code | Rare; use if policy requires identification of services related to reproductive procedures under a global obstetric package |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207V00000X | Reproductive Endocrinology & Infertility (REI) | Physicians who direct IVF programs and order thawing |
103K00000X | Clinical Laboratory | Laboratory directors and analysts who perform technical thawing |
363A00000X | Assisted Reproductive Technology (ART) Staff | Fertility clinic staff specializing in embryology procedures |
367A00000X | Obstetrics & Gynecology | Gynecologists involved in fertility care and embryo transfer |
367H00000X | Nurse Practitioner | Advanced practice clinicians participating in cycle management |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
N97.9 | Female infertility, unspecified | Common indication for IVF with cryopreserved embryos and planned thaw for transfer |
N97.0 | Female infertility due to tubal origin | Patients with tubal factor often pursue IVF and embryo thaw for FET |
N97.1 | Female infertility due to uterine origin | Uterine factors managed prior to thaw and transfer; relevant to FET planning |
N97.2 | Female infertility due to ovarian origin | Ovarian causes leading to IVF and use of cryopreserved embryos |
Z31.84 | Encounter for assisted reproductive fertility services cycle, complete | Administrative code commonly used during ART cycles that include thaw and transfer |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
89250 | Embryo transfer, intrauterine | Performed after successful thaw and embryo selection for transfer |
89258 | Assisted hatching, zona manipulation | May be performed after thawing if indicated to improve implantation chances |
89253 | Thawing of oocyte(s) or embryo(s) for in vitro fertilization | Related thawing/retrieval code; distinguishes specific thaw procedures in billing |
89260 | Cryopreservation of embryos (per embryo) | Represents the initial freezing procedure that precedes future thawing |
99499 | Unlisted evaluation and management service | Occasionally used for non-routine or bundled counseling/services related to thawing when no specific code applies |