Summary & Overview
CPT 81468: High-Resolution HLA Class I & II Typing, DNA Analysis
CPT code 81468 is a laboratory procedure for high-resolution Human Leukocyte Antigen (HLA) Class I and II typing, performed via DNA analysis for each locus. This advanced testing is crucial for organ and tissue transplantation, ensuring optimal donor-recipient compatibility and reducing the risk of rejection. Nationally, HLA typing is a cornerstone in transplant medicine, supporting clinical decisions for kidney, heart, lung, liver, and other transplants.
This publication provides a comprehensive overview of CPT code 81468, including its clinical significance, laboratory service context, and typical site of service. Readers will gain insights into payer coverage, with a focus on Blue Cross Blue Shield, and understand how this code fits within broader laboratory and pathology billing practices. The summary also highlights related codes for HLA typing at different resolution levels and unlisted molecular pathology procedures, offering context for coding and reimbursement.
Key benchmarks, policy updates, and clinical applications are discussed to inform stakeholders about current trends and requirements in HLA typing. The publication is designed for healthcare professionals, laboratory administrators, and policy analysts seeking clarity on coding, coverage, and the evolving landscape of transplant-related laboratory services.
CPT Code Overview
CPT code 81468 represents high-resolution typing of Human Leukocyte Antigen (HLA) Class I and II alleles, such as HLA-A, -B, -C, -DRB1, and -DQB1, using DNA analysis for each locus. This laboratory service is essential for determining precise HLA compatibility, which plays a critical role in organ and tissue transplantation. The typical site of service for this procedure is an independent laboratory, designated as Place of Service 81. High-resolution HLA typing provides detailed genetic information that supports clinical decision-making in transplant medicine and immunology.
Clinical & Coding Specifications
Clinical Context
A patient with a history of organ transplantation, such as kidney, heart, lung, or liver, is being evaluated for ongoing transplant management or potential re-transplantation. The clinical workflow involves ordering high-resolution HLA Class I and II typing to determine compatibility between the patient and a potential donor. The laboratory receives a blood sample, performs DNA-based testing to identify specific HLA alleles at loci such as HLA-A, HLA-B, HLA-C, HLA-DRB1, and HLA-DQB1. Results are used by the clinical team to assess immunologic risk and guide transplant decisions. This service is typically performed in an independent laboratory setting (Place of Service 81).
Coding Specifications
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Modifier
26: Indicates the professional component of the laboratory service, typically used when a physician interprets the results but does not perform the technical work. -
Modifier
TC: Indicates the technical component, used when the laboratory performs the actual testing but does not interpret the results.
| Taxonomy Code | Specialty Name |
|---|---|
207ZP0102X |