Total Complement (CH50)

CPT: 86162
Immune

What This Test Measures

Functional test of the entire classic complement pathway; screens for complement component deficiencies.

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

Low CH50 indicates deficiency in one or more complement components

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.

BioReference Laboratories
0534-8(order)
LabCorp
001685(order)
LabCorp
001834(order_code)
Quest Diagnostics
496(order)

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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.