Complement C3

CPT: 86160
Immune

What This Test Measures

Complement protein; decreased in active lupus and complement deficiency; elevated in acute inflammation.

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

Classic complement pathway; low in active SLE with renal involvement

ICD-10 Codes

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

D84.9Immunodeficiency, unspecified
M32.9Systemic lupus erythematosus, unspecified

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Lab Codes

Proprietary codes used by each lab for this test.

ARUP Laboratories
0050150(order_code)
BioReference Laboratories
0532-2(order)
LabCorp
006452(order)
LabCorp
006379(order_code)
LabCorp
140673(order_code)
Mayo Clinic Labs
C3(order_code)
Quest Diagnostics
34485(order_code)
Quest Diagnostics
4477(order_code)

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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.