E16.3

ICD-10Billable

Increased secretion of glucagon

Official ICD-10-CM descriptor (FY2026)

Increased secretion of glucagon

E16.3 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Hyperplasia of pancreatic endocrine cells with glucagon excess

Related codes in E16

Where this code sits

Chapter: 4. Endocrine, nutritional and metabolic diseases (E00-E89)
Block: Other disorders of glucose regulation and pancreatic internal secretion (E15-E16)
Parent code: E16

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.