Procalcitonin (PCT)

CPT: 84145
Inflammation

What This Test Measures

Peptide elevated specifically in bacterial infection and sepsis; helps guide antibiotic therapy decisions.

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

<0.25 ng/mL argues against bacterial infection; >0.5 suggests bacterial sepsis

ICD-10 Codes

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

E07.9Disorder of thyroid, unspecified
E20.9Hypoparathyroidism, unspecified
E21.0Primary hyperparathyroidism

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Lab Codes

Proprietary codes used by each lab for this test.

ARUP Laboratories
0020763(order_code)
LabCorp
143990(order_code)
LabCorp
164750(order_code)
Mayo Clinic Labs
PRCAL(order_code)
Quest Diagnostics
11363(order_code)

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Related Tests

hs-CRP (High Sensitivity) - Inflammation

CPT: 86141

CRP, Quantitative

CPT: 86140

ESR (Sed Rate, Westergren)

CPT: 85652

Interleukin-6 (IL-6)

CPT: 83519

TNF-Alpha

CPT: 83519

White Blood Cell Differential

CPT: 85025

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.