E16.4
Billable codeIncreased secretion of gastrin
The ICD-10 code for increased secretion of gastrin is E16.4.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Hypergastrinemia
- Hyperplasia of pancreatic endocrine cells with gastrin excess
- Zollinger-Ellison syndrome
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- E16.0Drug-induced hypoglycemia without coma
- E16.1Other hypoglycemia
- E16.2Hypoglycemia, unspecified
- E16.3Increased secretion of glucagon
- E16.8Other specified disorders of pancreatic internal secretion
- E16.9Disorder of pancreatic internal secretion, unspecified
- E16.AHypoglycemia levelnon-billable header
- E16.4Increased secretion of gastrin
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 2515
Associated MS-DRGs
E16.4 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.
- DRG 314Other Circulatory System Diagnoses with MCC
- DRG 315Other Circulatory System Diagnoses with CC
- DRG 316Other Circulatory System Diagnoses without CC/MCC
- DRG 380Complicated Peptic Ulcer with MCC
- DRG 381Complicated Peptic Ulcer with CC
- DRG 382Complicated Peptic Ulcer without CC/MCC
- DRG 383Uncomplicated Peptic Ulcer with MCC
- DRG 384Uncomplicated Peptic Ulcer without MCC