Cystatin C

CPT: 82610

Kidney

What This Test Measures

Alternative GFR marker; not affected by muscle mass, more sensitive for early CKD than creatinine.

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

Preferred in elderly, sarcopenic, or muscular patients where creatinine is unreliable

ICD-10 Codes

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

N17.9Acute kidney failure, unspecified

N18.9Chronic kidney disease, unspecified

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Lab Codes

Proprietary codes used by each lab for this test.

ARUP Laboratories

2005065(order_code)

LabCorp

120345(order_code)

Mayo Clinic Labs

CSTCE(order_code)

Quest Diagnostics

91203(order_code)

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Related Tests

BUN (Blood Urea Nitrogen)

CPT: 84520

Creatinine, Serum

CPT: 82565

eGFR (CKD-EPI)

Microalbumin:Creatinine Ratio (ACR)

CPT: 82043, 82570

Urine Creatinine

CPT: 82570

BUN/Creatinine Ratio

CPT: 80048

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.