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Anti-Scl70 (Scleroderma) Antibody (8000100417)
Test Mnemonic:
Specimen Requirements:

Serum separator tube (SST)


Serum separator tube (SST)

Minimum Volume:

1 mL of serum


Refrigerate (2-8°C) up to 7 days; Samples should be frozen (<-20°C)

Specimen Preparation:

Within 2 hours of collection, centrifuge


Refrigerate (2-8°C) up to 7 days; Samples should be frozen (<-20°C)

Causes for Rejection:

Improper collection, gross hemolysis.  Specimen container unlabeled or labeled incorrectly. No date and time of collection on requisition form.

Reference Range:
Turnaround Time:

Test is performed daily, Sunday through Friday


Multiplexing bead immunoassay


Clinical Microbiology


SCL70 Antibody; Scleroderma Antibody

Clinical Indication:

Autoimmune disease testing

CPT 4 Code:



Scleroderma (Scl-70) antibody is seen in 20-60% of patients with scleroderma and is considered diagnostic and specific for scleroderma if it is the only ENA antibody present. Scl-70 is also seen in approximately 25% of progressive systemic sclerosis (PSS).

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent.
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