Summary & Overview
CPT 0221U: Navigator ABO Blood Group NGS Test
CPT code 0221U designates a Proprietary Laboratory Analysis (PLA) for the Navigator ABO Blood Group NGS test from Grifols Immunohematology Center. The assay uses next-generation sequencing of specific gene regions to identify ABO blood group antigens, a clinically significant result that can reduce the risk of hemolytic transfusion reactions, organ transplant incompatibility, and perinatal blood-type complications. As a PLA code, 0221U applies to a single, manufacturer- or lab-specific test and signals specialized laboratory technology.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Coverage and coding practices for PLA tests vary among these payers; this publication summarizes payer coverage approaches, common billing modifiers, and clinical contexts where the test is applied.
Readers will learn what CPT code 0221U represents, why sequencing-based ABO typing is clinically important, and how payers commonly treat proprietary lab tests. The report provides benchmark insights on service setting and clinical use cases, highlights policy and coding considerations relevant to PLA codes, and outlines operational details for laboratory and billing staff to identify when this test is reportable. Data not available in the input: payer-specific coverage policies, reimbursement amounts, associated taxonomies, and ICD-10 diagnoses.
Billing Code Overview
CPT code 0221U is a Proprietary Laboratory Analyses (PLA) code for the Navigator ABO Blood Group NGS test offered by Grifols Immunohematology Center. The test analyzes specific gene sequences to determine ABO blood group antigens from a specimen such as blood. Results inform clinical decisions to minimize adverse blood–type incompatibility reactions in blood transfusions, organ transplants, and in pregnancy and newborn care.
Service type: Genetic sequencing-based blood group determination (Proprietary Laboratory Analysis)
Typical site of service: Clinical laboratory or specialized immunohematology reference laboratory; specimen collection in outpatient clinics, hospitals, or blood banks
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult or neonate requiring precise ABO blood group determination to prevent transfusion or transplant incompatibility. A common scenario is a hospitalized patient with acute blood loss who requires transfusion and has discrepant serologic ABO typing results due to recent transfusion, hematologic disorder, or weak/subgroup A/B antigens. Another scenario is prenatal testing for a pregnant patient with a history of hemolytic disease of the fetus/newborn, or testing of a newborn with unexpected serologic typing results. The clinical workflow: a clinician orders the Navigator ABO Blood Group NGS test (0221U) through the hospital or reference laboratory. A whole blood specimen is collected and sent to the Grifols Immunohematology Center. The laboratory performs targeted next-generation sequencing of the ABO gene loci per the proprietary assay, interprets sequence variants to determine ABO antigen genotype, and reports results to the ordering clinician. Results assist transfusion medicine, obstetrics, neonatology, or transplant teams in selecting compatible blood products or managing maternal–fetal blood group incompatibility.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier — standard reporting | Use when no other modifier applies and full service is reported. |
26 | Professional component | Use when reporting only the professional interpretation component separate from the technical component. |
TC | Technical component | Use when reporting only the technical component (laboratory processing and instrumentation). |
62 | Two surgeons | Use when two qualified providers share responsibility for a service (rare for lab tests). Not commonly applied to this PLA. |
78 | Unplanned return to OR by same physician following initial procedure | Generally not applicable to lab testing; include only if tied to a surgical return related to test findings. |
80 | Assistant surgeon | Generally not applicable to laboratory service; used if an assistant surgeon is billed for a surgical service tied to test use. |
82 | Assistant surgeon (when qualified resident not available) | As above; rarely used for this procedure. |
52 | Reduced services | Use when the lab performs a reduced or partial version of the test and the charge is reduced accordingly. |
53 | Discontinued service | Use if the specimen was collected but testing discontinued prior to completion for documented clinical reasons. |
59 | Distinct procedural service — NOTE: not in provided list; not used per instructions | Data not available in the input. |
QK | Qualified nonphysician may bill separately (advanced practitioner) | Use when an advanced practitioner meets billing criteria for ordering/reporting in their scope. |
QX | Service performed by CRNA with medically directed services by physician | Use only if applicable billing rules allow nonphysician billing for specimen handling/processing. |
QY | Service ordered by an attending physician while resident provides service | Use when applicable under supervision billing rules. |
AS | Physician assistant, nurse practitioner, or clinical nurse specialist under certain payer rules | Use when an advanced practice provider performs components allowed by payer rules. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
207Q00000X | Clinical Pathology | Most common specialty overseeing laboratory testing and interpretation for transfusion medicine. |
2080P0000X | Transfusion Medicine | Specialists in blood bank and immunohematology who order and interpret 0221U. |
207L00000X | Hematology | Hematologists who manage patients with hemoglobinopathies or transfusion needs and order genotyping. |
207K00000X | Obstetrics & Gynecology | OB providers ordering testing for maternal–fetal blood group incompatibility and pregnancy management. |
208000000X | Neonatology | Neonatologists involved in newborns with serologic discrepancies or hemolytic disease. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
D75.9 | Disorder of blood and blood-forming organs, unspecified | Used when a specific hematologic disorder is suspected and precise ABO genotyping is needed for transfusion planning. |
O36.5XX0 | Maternal care for other known or suspected fetal abnormality and damage, unspecified fetus; initial visit — (use appropriate subcode for isoimmunization) | Indicates pregnancy where fetal–maternal blood group incompatibility is a concern and maternal or fetal genotyping may be ordered. |
P55.0 | Hemolytic disease of fetus or newborn due to ABO incompatibility | Direct indication for ABO genotyping in the newborn or mother to clarify antigen status. |
Z51.81 | Encounter for therapeutic drug level monitoring — (placeholder for outpatient lab encounter) | Used for outpatient laboratory encounters when monitoring or specialized testing occurs; indicates service setting. |
R79.0 | Abnormal blood chemistry | May be used when abnormal serologic tests prompt molecular ABO testing. |
Z31.83 | Encounter for genetic counseling | May accompany genotyping when results impact reproductive counseling. |
D56.9 | Thalassemia, unspecified | Hematologic conditions with transfusion needs where precise blood grouping is critical. |
Z51.0 | Encounter for antineoplastic chemotherapy and immunotherapy — included only if transfusion planning occurs during cancer therapy | Indicates hospitalized patients receiving therapies that increase transfusion risk and may require genotyping. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
36415 | Collection of venous blood by venipuncture | Commonly performed immediately prior to 0221U to obtain the blood specimen for genotyping. |
86850 | Blood typing; red blood cell antibody screen (includes Rh typing) | Performed as part of immunohematologic workup; may precede or accompany 0221U when serologic typing is inconclusive. |
86900 | Blood typing; ABO | Routine serologic ABO typing that may be performed before ordering molecular ABO genotyping with 0221U. |
86860 | Compatibility testing (crossmatch) | Performed when transfusion is planned; genotyping results from 0221U inform selection of compatible units. |
81375 | HBB (beta globin) gene analysis, targeted sequence analysis (example of molecular hematology testing) | Represents molecular genetic testing workflows; not the same assay but commonly ordered in parallel when genetic causes of hemolysis are investigated. |
G0480 | High complexity clinical laboratory tests (Note: carrier/Medicare-specific) | Laboratory and payer workflows for specialized testing may reference high complexity test billing; used in billing contexts for complex assays. |