Anti-Smith (Sm) Antibody

CPT: 86235
Autoimmune

What This Test Measures

Highly specific for lupus (SLE); does not fluctuate with disease activity like anti-dsDNA.

Preparation

No fasting required

General guidelines only. Requirements vary by lab and individual. Confirm with your provider before adjusting any medications.

Turnaround Time

Varies by lab

Clinical Notes

High specificity (~99%); lower sensitivity (~25-30%) for SLE

ICD-10 Codes

Common diagnosis codes associated with this test. Codes are assigned by your provider.

M32.9Systemic lupus erythematosus, unspecified

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Lab Codes

Proprietary codes used by each lab for this test.

ARUP Laboratories
3000460(order_code)
LabCorp
006502(order_code)

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Related Tests

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CPT: 86038

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CPT: 86235

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CPT: 86200

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CPT: 86596

Anti-Beta-2 Glycoprotein I IgG/IgM

CPT: 86148

For informational purposes only

This page is for educational and research purposes only and does not constitute medical advice, diagnosis, or treatment recommendations. ICD-10 and CPT codes are assigned by your healthcare provider. Always consult a qualified healthcare provider before ordering any lab test or making decisions about your health.