Endocrine, nutritional, and metabolic diseases (E00-E90).
- Diabetes mellitus
Skin and subcutaneous tissue (L00-L99)
- Vitiligo (white spot disease)
Mouth, esophagus (food pipe), stomach, and intestines (K00-K67; K90-K93).
- Small intestinal stenosis – narrowing of the small intestine.
- Gastritis (inflammation of the gastric mucosa)
- Gastric outlet stenosis – narrowing of the gastric outlet.
Musculoskeletal system and connective tissue (M00-M99).
- Rheumatoid arthritis
Neoplasms – tumor diseases (C00-D48)
- Pheochromocytoma – tumors that produce primarily epinephrine and norepinephrine and occur predominantly in the adrenal medulla.
Genitourinary system (kidneys, urinary tract – sex organs) (N00-N99).
- Renal insufficiency (kidney weakness).
Injuries, poisoning, and other consequences of external causes (S00-T98).
Medications that may cause hypergastrinemia (gastrin level > 100 pg/ml):
- H2-blockers, H2-receptor antagonists are antihistamines – drugs used to inhibit gastric acid secretion in peptic ulcers (gastric ulcers), gastric acid hypersecretion and secondary syndromes (reflux).
- Proton pump inhibitors (PPIs; acid blockers) – medications such as omeprazole that are used to treat gastric ulcers (stomach ulcers)
