Summary & Overview
CPT 81354: Optical Genome Mapping for Structural and CNV Detection
CPT code 81354 identifies the technical laboratory service for optical genome mapping (OGM), a high-resolution genomic assay that images long DNA strands to detect structural variants and copy number variants across the entire genome. This technique is increasingly relevant for diagnosing congenital conditions and unexplained developmental delays where conventional methods may miss complex rearrangements. Nationally, adoption of OGM-based testing is growing as reference laboratories expand capabilities to provide comprehensive structural variant detection.
Key payers addressed in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise briefing on what the code represents, the clinical context for use, and what to expect when billing CPT code 81354. The publication outlines benchmarks and reimbursement context, common coverage considerations among major payers, and relevant clinical indications tied to developmental and congenital presentations.
This summary equips laboratory billing managers, hospital revenue staff, and policy analysts with a clear understanding of the service defined by CPT code 81354, the typical testing environment, and the payer landscape to inform billing classification and payer discussions. Data not available in the input has been omitted and will require payer-specific policy review for coverage criteria and reimbursement rates.
Billing Code Overview
CPT code 81354 describes a laboratory technical service that performs optical genome mapping (OGM). The laboratory analyst conducts the technical assay that generates high-resolution images of long DNA molecules to evaluate the entire genome for structural variants (such as inversions and translocations) and copy number variants (CNVs) (deletions or duplications). This testing is used to identify genomic structural changes that may be associated with developmental delays or other congenital conditions present from birth.
Service Type: Laboratory — Genomic Structural Variant and CNV Detection using Optical Genome Mapping
Typical Site of Service: Clinical reference laboratory or specialized genomic testing laboratory
Clinical & Coding Specifications
Clinical Context
A typical patient is an infant or child with unexplained developmental delay, multiple congenital anomalies, autistic features, or abnormal prenatal screening findings. The clinical workflow begins with referral from a pediatrician, clinical geneticist, or maternal-fetal medicine specialist after standard tests (karyotype, chromosomal microarray, or targeted gene panels) are nondiagnostic or when a broad structural genomic evaluation is indicated. A phlebotomy appointment is scheduled to collect peripheral blood in appropriate tubes; samples are sent to a molecular diagnostics laboratory capable of optical genome mapping (OGM). The laboratory analyst performs 81354 using OGM platforms to generate high-resolution images of long DNA molecules and identify structural variants and copy number variants across the genome. Results are reviewed by laboratory directors and reported to the ordering provider, who integrates findings with clinical assessment and genetic counseling. Typical sites of service include hospital-based molecular pathology labs, independent reference laboratories, and academic medical center genetics laboratories.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the professional interpretation component separated from the technical component if applicable and payer allows split billing. |