Gamma-glutamyl transferase (GGT) is a liver enzyme measured in blood tests. Elevated GGT can indicate cholestasis, alcohol use, medication effects, or metabolic disease and often rises alongside ALT or AST. In Underwriting, isolated GGT elevation prompts inquiry into alcohol intake and liver imaging; combined abnormalities warrant broader hepatic evaluation. Stabilized values with documented abstinence or treatment can improve offers. Because GGT tracks biliary injury and alcohol exposure, it is a sensitive but nonspecific marker that must be interpreted with other labs and clinical history.

Advisors request follow-up labs and alcohol histories when GGT is elevated.Stabilization and normal imaging can improve offers. Persistently high values prompt deeper hepatic workups before proceeding with large coverage.