Protein C Activity

CPT: 85303
Coagulation

What This Test Measures

Anticoagulant protein; deficiency causes increased thrombosis risk.

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

Part of hypercoagulability workup; can be acquired or inherited

ICD-10 Codes

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

D68.51Activated protein C resistance
I82.409Acute embolism and thrombosis of unspecified deep veins

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Lab Codes

Proprietary codes used by each lab for this test.

ARUP Laboratories
0030165(order)
LabCorp
005199(order)
Quest Diagnostics
7766(order)

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Related Tests

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CPT: 85730

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Antiphospholipid Panel

CPT: 85613, 86147, 86148

Antithrombin III Activity

CPT: 85300

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.