| Test Name: |
CELIAC HLA DQ ASSOCIATION |
| Test Code: |
2194269 |
| Alias: |
167652
Celiac HLA DQ
LAB2385
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| CPT Code(s): |
81337 x 2
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| Preferred Specimen: |
7 mL |
| Container: |
EDTA Lavender x 2 |
| Minimum Volume: |
3 mL |
| Collection Instructions: |
Draw blood in lavender top EDTA tube. Invert to mix with preservatives. Maintain specimen at room temperature. Protect from extreme heat or cold. |
| Transport Temperature: |
Room Temperature |
| Stability: |
Room temperature: 1 month Frozen: Indefinite |
| Rejection Criteria: |
Incorrect specimen container (tube type); yellow-top (ACD) tube |
| Limitations: |
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration. |
| Schedule: |
Report Available: 4-8 days |
| Method: |
Next-generation sequencing or other methods as needed |
| Performing Lab: |
Lab Corp #167652 |
| Clinical Significance: |
This test aids in the diagnosis of celiac disease. The HLA DQ Association test provides genotyping for detection of HLA-DQ2 (DQA1*05:01 or 05:05 and DQB1*02:01 or 02:02) and HLA-DQ8 (DQB1*03:02). Patients with DQ2, half DQ2 and/or DQ8 are predisposed to celiac disease. A negative result essentially rules out celiac disease. In addition to DQ2 and DQ8 status, the report also includes complete DQA and DQB genotypes, homozygosity for DQB1*02 and genetic risk assessment. |
| Use: |
Updated: 09/19/2025 |
| Reference Ranges: |
Negative |
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The CPT codes included in this publication are in accordance with Current Procedural Terminology, a publication of the American Medical Association. CPT codes are provided here for the convenience of our clients; however, correct coding often varies from one carrier to another, and HealthLab may bill specific carriers using codes other than those shown. Clients who bill for services should verify the code(s) with the applicable payor to confirm that their use is appropriate in each case.
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| Test Type: |
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