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Helicobacter Pylori IgG Antibody Lab Test

CPT Code(s)



Immunoassay (IA)


Negative antibody tests indicate absence of current and potentially past infection. Antibody tests are not recommended after treatment of H. pylori. Stool antigen and urea breath tests are effective in identifying present infection.

Reference Range(s)

H. pylori Ab (IgG)Negative
Measurement of antibodies to H. pylori is not recommended for the diagnosis of active infection. The American College of Gastroenterology and the American Gastroenterological Association recommend either the urea breath test or the fecal antigen test for diagnosis and confirmation of eradication in cases of suspected or proven H. pylori infection.

Clinical Significance

Colonization with H. Pylori is associated with risk of patients developing gastritis, peptic ulcer disease, and gastric adenocarcinoma. Serologic testing is recommended only for symptomatic patients. H. Pylori IgG may be detected for years in infected individuals, even after successful antibiotic treatment.

Alternative Name(s)

H. pylori IgG,H. pylori Antibody (IgG),H pylori IgG

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