E16.4
Increased secretion of gastrin
HCC risk adjustment mapping
RxHCC V08
Pancreatic Disorders and Intestinal Malabsorption, Except Pancreatitis
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
Hypergastrinemia Hyperplasia of pancreatic endocrine cells with gastrin excess Zollinger-Ellison syndrome
transitory endocrine and metabolic disorders specific to newborn (P70-P74)
All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.
Official Guidelines for E16.4
FY 2026 ›Find E16.4 in the alphabetic index
8 index paths lead to this code
- Ellison-Zollinger syndrome
- Hypergastrinemia
- Zollinger-Ellison syndrome
- Abnormal, abnormality, abnormalities › gastrin secretion
- Hypersecretion › gastrin
- Abnormal, abnormality, abnormalities › secretion › gastrin
- Increase, increased › secretion › gastrin
- Hyperplasia, hyperplastic › pancreatic islet cells › alpha › with excess › gastrin