CPT 0060U: Panorama Twin Zygosity Test, Cell-Free Fetal DNA Sequencing

CPT code 0060U designates the Panorama® Twin Zygosity Proprietary Laboratory Analyses test, a noninvasive genomic targeted sequencing assay on chromosome 2 applied to circulating cell–free fetal DNA in maternal blood to determine monozygosity versus dizygosity in twin pregnancies. This PLA code identifies a single manufacturer-specific test and matters nationally because it informs clinical management of twin gestations, impacts downstream prenatal care decisions, and is subject to payer coverage policies that vary across major insurers.

Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the service, common payer coverage considerations, and the clinical context in which the test is used. The publication provides benchmarks on coding and administrative handling for a manufacturer-specific PLA, summaries of typical sites of service, and notes on documentation clinicians and laboratories supply for medical necessity determinations.

This analysis emphasizes operational and policy-relevant information for national stakeholders: clinicians ordering the test, laboratory billing teams, and payer policy analysts. It highlights where data is available and explicitly notes when input fields were not provided. The content does not offer clinical recommendations but summarizes how CPT code 0060U is positioned within prenatal genetic testing workflows and payer interactions.

Billing Code Overview

CPT code 0060U is a Proprietary Laboratory Analyses (PLA) code for the Panorama® Twin Zygosity test by Natera, Inc. The test uses genomic targeted sequence analysis of chromosome 2 in circulating cell–free fetal DNA from maternal blood to determine whether twin fetuses are monozygotic (identical) or dizygotic (fraternal) by comparing fetal DNA profiles.

Service Type: Noninvasive prenatal laboratory testing using cell-free fetal DNA analysis

Typical Site of Service: Clinical laboratory or outpatient specimen collection site (maternal blood draw)

Clinical Context

A pregnant patient with a dichorionic or monochorionic twin pregnancy is referred for noninvasive zygosity testing when chorionicity is uncertain, dizygosity would alter counseling, or when one gestational sac lacks an identifiable fetus for prenatal workup. The ordering clinician (obstetrician-gynecologist or maternal-fetal medicine specialist) documents the indication in the prenatal visit note and obtains informed consent. A maternal blood draw is collected after the gestational age threshold appropriate for circulating cell-free fetal DNA analysis (commonly after 10 weeks gestation). The sample is sent to the performing laboratory (Natera, Inc.) which performs the Panorama® Twin Zygosity test using targeted sequencing of chromosome 2 in maternal plasma cell-free DNA to compare fetal genotypes and determine whether twins are monozygotic or dizygotic. Results are returned to the ordering clinician and used for counseling about recurrence risk, donor gamete considerations, twin-specific monitoring, and interpretation of aneuploidy screening results. Typical site of service is an outpatient obstetrics clinic or outpatient phlebotomy center; laboratory analysis occurs in a reference/central laboratory.

Coding Specifications

Modifier	Description	When to Use
`00`	Default, no modifier	Use when no special circumstances apply to the billing of the PLA test.

Taxonomy Code	Specialty	Notes
207Q00000X	Obstetrics & Gynecology	Ordering providers commonly include OB/GYNs who manage twin pregnancies.
207L00000X	Maternal-Fetal Medicine	Specialists order and interpret results for high-risk twin pregnancies.
208000000X	Pathology & Clinical Laboratory	Laboratory directors and clinical pathologists oversee test validation and result interpretation.
363LF0000X	Clinical Laboratory	Performing laboratories and lab managers use this taxonomy for billing and enrollment.
202M00000X	Genetics & Molecular Diagnostics	Clinical geneticists or molecular diagnostics specialists may order or consult on complex cases.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`O30.003`	Twin pregnancy, unspecified number, unspecified trimester, with antepartum condition or complication (placeholder)	Used in twin pregnancies when specifying twin pregnancy without further detail to justify zygosity testing.
`O30.013`	Twin pregnancy, monochorionic, first trimester (placeholder)	Relevant when chorionicity is suspected and zygosity testing helps confirm identical twins.
`O30.023`	Twin pregnancy, monochorionic, second trimester (placeholder)	Relevant to ongoing management when determining whether twins are monozygotic.
`O30.1XX0`	Twins, unspecified chorionicity and amnionicity (example placeholder)	Used when documentation seeks clarification of chorionicity/zygosity for counseling.
`Z36.01`	Encounter for antenatal screening for chromosomal abnormalities, first trimester	Relevant when NIPT-type services, including zygosity testing, are part of prenatal genetic screening.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`0060U`	Panorama® Twin Zygosity test — targeted sequence analysis of chromosome 2 in cell-free fetal DNA to determine zygosity in twin pregnancies	This is the primary PLA code describing the laboratory assay performed by Natera, Inc.
`81420`	Molecular pathology procedure; targeted genomic sequence analysis panel (e.g., sequencing of multiple genes or genomic regions)	May be used for other molecular assays ordered in parallel when additional fetal genetic testing is indicated.
`81025`	Urine pregnancy test, qualitative (single)	May be performed earlier in the prenatal workflow but not specific to this test.
`36415`	Collection of venous blood by venipuncture	Used for billing the blood draw if charged separately by the facility or provider.
`88381`	Consultation and review of cytogenetic or molecular test results (pathology consultation)	Used when a pathologist or geneticist provides formal consultation on test interpretation and results reporting.
`96040`	Medical genetics and genetic counseling service(s)	Used when a certified genetic counselor provides counseling based on the zygosity test results.

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Summary & Overview