E16.8

HCC Category Mapping

What This Code Means

Other specific disorders affecting how the pancreas produces and regulates hormones.

Coding Tips

• •Use this code for documented pancreatic endocrine disorders not captured by other E16 codes
• •Provide specific documentation of the pancreatic disorder to support medical necessity

Clinical Significance

E16.8 captures other specified disorders of pancreatic internal secretion not classified elsewhere. This includes rare conditions such as somatostatinoma syndrome, VIPoma (vasoactive intestinal peptide-secreting tumor), or other functional pancreatic neuroendocrine tumors that cause clinically significant hormonal excess syndromes.

Documentation Requirements

• ✓The provider must document the specific pancreatic endocrine disorder, supporting laboratory evidence (elevated hormone levels), and clinical manifestations.
• ✓The condition must not be classifiable as increased glucagon (E16.3) or gastrin (E16.4) secretion.
• ✓Imaging and histopathology findings should be documented.

Commonly Confused Codes