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    v1.0.30
    OpenPayerBilling CodesReproductive Medicine ProceduresCPT cpt-89356-thawing-cryopreserved-oocytes-laboratory
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    CPT 89356: Thawing of Cryopreserved Oocytes, Per Aliquot

    CPT code 89356 describes the laboratory service in which a trained lab analyst performs the controlled thawing of each aliquot of a female patient’s cryopreserved oocytes for later use; this is a clinical laboratory service typically performed in an assisted reproductive technology (ART) laboratory or fertility clinic and is part of oocyte thawing and preparation procedures for in vitro fertilization or related fertility treatments.

    For related coverage guidance, see recent payer policy updates: Prenatal (Fetal) Diagnostic Testing, Oral Cancer Screening and Testing, RTM Testing for Alpha-1 Antitrypsin Deficiency.

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    Clinical & Coding Specifications

    Clinical Context

    A 34-year-old woman with a history of planned fertility preservation returns to the assisted reproductive technology (ART) clinic to have previously cryopreserved mature oocytes thawed for use in an in vitro fertilization cycle. The lab receives a request from the reproductive endocrinologist after counseling and consent are completed. On the scheduled date the embryology laboratory technician documents identity verification, retrieves the correct cryovial aliquot from long-term storage, and performs controlled warming and stepwise dilution of cryoprotectants to minimize osmotic shock. Thawed oocytes are assessed for survival and then either inseminated by intracytoplasmic sperm injection (ICSI) or prepared for conventional insemination depending on sperm quality. The embryology report records number of oocytes thawed, number surviving, and any abnormalities. Typical site of service is an outpatient fertility clinic or specialized reproductive laboratory within a hospital-affiliated fertility center. Patient scenario variants include thawing for immediate IVF attempt, thawing for oocyte donation, or thawing for fertility preservation after prior gonadotoxic therapy.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    58970Oocyte retrieval, any technique; with transvaginal ultrasound guidancePerformed earlier in the cycle when oocytes were initially retrieved and later cryopreserved prior to thawing
    89250Embryo culture; less than 72 hoursUsed after thawing if fertilization has occurred and embryos are cultured short term
    89252Embryo culture; day 5-6 (blastocyst)Used when embryos derived from thawed oocytes are cultured to blastocyst stage
    89291Sperm preparation for intrauterine insemination (IUI) or in vitro fertilization (IVF)Sperm preparation commonly performed in parallel so thawed oocytes can be inseminated
    86850Sperm wash/processing for cryopreservation or inseminationRelated to gamete handling often performed in the same ART cycle
    89260Embryo cryopreservation, storage, and maintenanceMay be used if surviving embryos after thawing are re-cryopreserved or for describing storage services

    Related Modifiers

    8 rows

    ModifierDescriptionWhen to Use
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    55Modifier –55 indicates the billing provider furnished only postoperative management for a procedure that has a global surgical period. According to AAPC, this modifier is appended to the same CPT…- Use modifier -55 when billing the same CPT surgical code that has a 10- or 90-day global period and you, as a provider other than the original surgeon, furnished ONLY postoperative management (no…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…
    82Modifier 82 is appended to a surgical CPT code to indicate that an attending physician acted as an assistant because a qualified resident surgeon was unavailable. In teaching hospitals it documents…- When to use: Append modifier 82 in teaching-hospital settings to indicate a physician served as an assistant surgeon because a qualified resident surgeon was unavailable (includes situations where…
    90Modifier ‑90 (Reference/Outside Laboratory) indicates that a laboratory test was performed by an entity other than the treating or reporting provider. The American Medical Association defines…- Use CPT modifier -90 when a laboratory test is performed by an outside/reference laboratory (an entity other than the treating or reporting physician or qualified professional) and the claim needs…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207V00000X
    163W00000X
    103K00000X
    2080P0205X
    261QR1100X
    261QE0002X
    207RT0003X
    2081P0010X

    Related Payer Policy Updates

    Specialty: Genetic & Molecular Testing1 / 3

    10 rows

    PolicyPayerEffective Date
    Prenatal (Fetal) Diagnostic TestingBlue Cross Blue Shield - Rhode Island2027-01-01
    Oral Cancer Screening and TestingOscar Health2027-01-01
    RTM Testing for Alpha-1 Antitrypsin DeficiencyOscar Health2027-01-01
    Cytochrome P450 Genotype-Guided Treatment Strategy Corporate Medical Policybcbsvermont2027-01-01
    Polygenic Risk ScoreBlue Cross Blue Shield - Rhode Island2026-12-01
    Gene Expression Profiling for Cutaneous MelanomaBlue Cross Blue Shield - Rhode Island2026-12-01
    Genetic Testing for Diagnosis and Management of Mental Health ConditionsBlue Cross Blue Shield - Rhode Island2026-11-01
    Molecular Testing in the Management of Pulmonary NodulesBlue Cross Blue Shield - Rhode Island2026-11-01
    Genetic Testing for Hereditary Cancer (for North Carolina Only)Colorado Rocky Mountain Health Plans2026-10-01
    Expanded Molecular Testing of Cancers to Select Targeted TherapiesBlue Cross Blue Shield - North Dakota2026-10-01

    Related Codes

    CPT-89250-SHORT-TERM-OOCYTE-EMBRYO-CULTURE-ART

    CPT 89250: Oocyte or Embryo Culture <4 Days

    CPT-89251-OOCYTE-EMBRYO-SHORT-TERM-COCULTURE-ART

    CPT 89251: Oocyte/Embryo Culture with Coculture (<4 days)

    CPT-89253-ASSISTED-EMBRYO-HATCHING-PARTIAL-ZONA-DISSECTION

    CPT 89253: Assisted Embryo Hatching, Partial Zona Dissection

    CPT-89254-FOLLICULAR-FLUID-OOCYTE-IDENTIFICATION-LAB

    CPT 89254: Oocyte Identification from Follicular Fluid

    CPT-89255-EMBRYO-PREPARATION-FOR-TRANSFER-ART

    CPT 89255: Embryo Preparation for Transfer (ART)

    CPT-89257-SPERM-IDENTIFICATION-FROM-ASPIRATION

    CPT 89257: Identification of Sperm from Non-Seminal Aspirates

    CPT-89258-EMBRYO-CRYOPRESERVATION-IVF

    CPT 89258: Embryo Cryopreservation During IVF Cycle

    CPT-89259-SPERM-CRYOPRESERVATION-AND-PRESERVATION

    CPT 89259: Sperm Cryopreservation, Laboratory Processing

    CPT-89260-LABORATORY-SPERM-PREPARATION-SPERM-WASH-SWIM-UP

    CPT 89260: Sperm Isolation for Sperm Wash and Swim‑Up Preparation

    CPT-89261-SPERM-PREPARATION-AND-SEMEN-ANALYSIS

    CPT 89261: Complex Sperm Preparation and Semen Analysis

    Showing 1–10 of 36

    Frequently Asked Questions

    References

    1. 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. 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. 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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