E16.9
Billable

Disorder of pancreatic internal secretion, unspecified

Billable / Specific Code

What is Disorder of pancreatic internal secretion, unspecified?

ICD-10-CM E16.9 is the diagnosis code for Disorder of pancreatic internal secretion, unspecified. This code falls under the section "Other disorders of glucose regulation and pancreatic internal secretion" within Chapter 4 — Endocrine, nutritional and metabolic diseases (E00-E89). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions

Coding Guidelines for E16.9

✅ This Code Includes

  • Islet-cell hyperplasia NOS
  • Pancreatic endocrine cell hyperplasia NOS

ICD-10-CM Code Hierarchy

Understanding where E16.9 sits in the ICD-10-CM classification helps ensure proper coding:

Related Codes

Frequently Asked Questions

Is E16.9 a billable ICD-10-CM code?

Yes, E16.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does E16.9 mean?

E16.9 is the ICD-10-CM diagnosis code for "Disorder of pancreatic internal secretion, unspecified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of E16.9?

The parent code of E16.9 is E16 ("Other disorders of pancreatic internal secretion"). E16.9 provides a more specific classification within this category.

What section is E16.9 in?

E16.9 is located in Section E15-E16 — "Other disorders of glucose regulation and pancreatic internal secretion" within Chapter 4 of the ICD-10-CM Tabular List.

When should I use E16.9?

Use E16.9 when the patients documented diagnosis matches "Disorder of pancreatic internal secretion, unspecified" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Disorder of pancreatic internal secretion, unspecified?

The ICD-10-CM code for Disorder of pancreatic internal secretion, unspecified is E16.9.

Can E16.9 be used for primary diagnosis?

Yes, E16.9 can be used as a primary diagnosis code since it is billable and specific.

What chapter is E16.9 in?

E16.9 is in Chapter 4 of the ICD-10-CM Tabular List.

Is E16.9 valid for 2026?

Yes, E16.9 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousE16.8Other specified disorders of pancreatic internal secretionNext →E16.AHypoglycemia level
Code Details
E16.9
Disorder of pancreatic internal secretion, unspecified
Billable / Specific Code
4 — Endocrine, nutritional and metabolic diseases (E00-E89)
E15-E16 — Other disorders of glucose regulation and pancreatic internal secretion
2026 ICD-10-CM