GGT (Gamma-Glutamyl Transferase)

CPT: 82977
Cardiovascular

What This Test Measures

Liver enzyme also serving as a cardiovascular risk biomarker; elevated by alcohol, fatty liver, and metabolic syndrome.

Preparation

No fasting required
No special prep. More sensitive than B12 alone for detecting functional deficiency.

General guidelines only. Requirements vary by lab and individual. Confirm with your provider before adjusting any medications.

Turnaround Time

Varies by lab

Clinical Notes

Elevated GGT is an independent CVD risk factor beyond its liver function role

ICD-10 Codes

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

D51.9Vitamin B12 deficiency anemia, unspecified
G62.0Drug-induced polyneuropathy

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Lab Codes

Proprietary codes used by each lab for this test.

ACL Laboratories
LAB8263(order_code)
American Esoteric Labs
C153(order_code)
ARUP Laboratories
0020026(order_code)
Cleveland Clinic
GGT(mnemonic)
Clinical Labs of Hawaii
0077(order_code)
CPL
2216(order_code)
Geisinger Medical Labs
LAB2350(lab_id)
Interpath Laboratory
2019(order_code)
LabCorp
001172(order_code)
LabCorp
001958(order_code)
Mayo Clinic Labs
GGT/8677(order_code)
Northwell Health Labs
5300140(order_code)
NYU Langone Health
LAB85(order_code)
Quest Diagnostics
330(order_code)
Stanford Health Care
GGT(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.