Summary & Overview
CPT 0201U: Navigator YT Sequencing for YT Blood Group Antigen Typing
CPT code 0201U is a Proprietary Laboratory Analyses (PLA) code for the Navigator YT Sequencing test from Grifols Immunohematology Center that identifies YT blood group antigens through targeted gene sequence analysis. The test supports clinical decision-making in transfusion medicine, transplantation, and perinatal care by reducing the risk of antigen incompatibility–related reactions. Nationally, such specialized PLA codes matter because they represent single-source laboratory tests with potential implications for clinical workflows, coding practices, and payer coverage policies.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context and the role of YT antigen testing, a summary of payer coverage considerations, and what to expect in terms of billing classification and service setting. The publication also outlines common modifiers associated with laboratory molecular testing and notes where input data is not available. The content is intended to inform billing staff, laboratory administrators, and policy analysts about the clinical purpose of CPT code 0201U, typical sites of service, and the payer landscape relevant to this PLA-coded sequencing assay.
Billing Code Overview
CPT code 0201U is a Proprietary Laboratory Analyses (PLA) code for the Navigator YT Sequencing test from Grifols Immunohematology Center. The test analyzes specific gene sequences to determine YT blood group antigens, information that can help clinicians minimize adverse blood–type incompatibility reactions in blood transfusions, organ transplants, and in pregnancy and newborn care.
Service type: Genetic sequencing / molecular diagnostic test for blood group antigen typing
Typical site of service: Clinical laboratory or hospital laboratory
Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.
Clinical & Coding Specifications
Clinical Context
A 32-year-old pregnant woman with a prior history of transfusion and an inconclusive serologic Yt blood group typing is referred for molecular genotyping. The obstetrician orders the Navigator YT Sequencing test from Grifols Immunohematology Center to determine YT antigen status from a maternal blood specimen to assess fetal/newborn hemolytic risk and to guide selection of compatible blood products if transfusion is needed. Blood is drawn in a phlebotomy setting and sent to the reference laboratory; results are reported to the ordering provider and transfusion medicine service. This test is also used pre-transplant and pre-transfusion when serologic results are discrepant or when patient has been recently transfused and phenotype is indeterminate.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Modifier not used/placeholder (manufacturer-specific PLA guidance) | Rarely used; present in input list but not typically appended to PLA codes for professional/technical split billing |
11 | Office or other outpatient service/standard billing | Use when test performed and billed under routine circumstances without unusual procedural services |