ICDwise
E08 ⚠ Non-billable

Diabetes mellitus due to underlying condition

ICD-10-CM · FY2026 · Endocrine, Nutritional and Metabolic Diseases

Code
E08
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Endocrine, Nutritional and Metabolic Diseases
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Official coding notes

From CMS's ICD-10-CM Tabular List.

Excludes1 — never code together
  • drug or chemical induced diabetes mellitus (E09.-)
  • gestational diabetes (O24.4-)
  • neonatal diabetes mellitus (P70.2)
  • postpancreatectomy diabetes mellitus (E13.-)
  • postprocedural diabetes mellitus (E13.-)
  • secondary diabetes mellitus NEC (E13.-)
  • type 1 diabetes mellitus (E10.-)
  • type 2 diabetes mellitus (E11.-)
Code first
  • the underlying condition, such as:
  • congenital rubella (P35.0)
  • Cushing's syndrome (E24.-)
  • cystic fibrosis (E84.-)
  • malignant neoplasm (C00-C96)
  • malnutrition (E40-E46)
  • pancreatitis and other diseases of the pancreas (K85-K86.-)
Use additional code
  • code to identify control using:
  • injectable non-insulin antidiabetic drugs (Z79.85)
  • insulin (Z79.4)
  • oral antidiabetic drugs (Z79.84)
  • oral hypoglycemic drugs (Z79.84)

Frequently asked questions

What is ICD-10 code E08?
ICD-10-CM code E08 represents Diabetes mellitus due to underlying condition. It is a non-billable header code requiring a more specific subcategory in the Endocrine, Nutritional and Metabolic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is E08 billable?
No. E08 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is E08 in?
E08 belongs to the Endocrine, Nutritional and Metabolic Diseases chapter (E00–E89) of ICD-10-CM.

Related codes in the E08 category

E08.0 Diabetes mellitus due to underlying condition with hyperosmolarity Non-billable E08.1 Diabetes mellitus due to underlying condition with ketoacidosis Non-billable E08.2 Diabetes mellitus due to underlying condition with kidney complications Non-billable E08.3 Diabetes mellitus due to underlying condition with ophthalmic complications Non-billable E08.00 Diabetes mellitus due to underlying condition with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC) Billable E08.01 Diabetes mellitus due to underlying condition with hyperosmolarity with coma Billable E08.10 Diabetes mellitus due to underlying condition with ketoacidosis without coma Billable E08.11 Diabetes mellitus due to underlying condition with ketoacidosis with coma Billable

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