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E13 ⚠ Non-billable

Other specified diabetes mellitus

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

Code
E13
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.

Includes
  • diabetes mellitus due to genetic defects of beta-cell function
  • diabetes mellitus due to genetic defects in insulin action
  • postpancreatectomy diabetes mellitus
  • postprocedural diabetes mellitus
  • secondary diabetes mellitus NEC
Excludes1 — never code together
  • diabetes (mellitus) due to autoimmune process (E10.-)
  • diabetes (mellitus) due to immune mediated pancreatic islet beta-cell destruction (E10.-)
  • diabetes mellitus due to underlying condition (E08.-)
  • drug or chemical induced diabetes mellitus (E09.-)
  • gestational diabetes (O24.4-)
  • neonatal diabetes mellitus (P70.2)
  • type 1 diabetes mellitus (E10.-)
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 E13?
ICD-10-CM code E13 represents Other specified diabetes mellitus. 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 E13 billable?
No. E13 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is E13 in?
E13 belongs to the Endocrine, Nutritional and Metabolic Diseases chapter (E00–E89) of ICD-10-CM.

Related codes in the E13 category

E13.0 Other specified diabetes mellitus with hyperosmolarity Non-billable E13.1 Other specified diabetes mellitus with ketoacidosis Non-billable E13.2 Other specified diabetes mellitus with kidney complications Non-billable E13.3 Other specified diabetes mellitus with ophthalmic complications Non-billable E13.00 Other specified diabetes mellitus with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC) Billable E13.01 Other specified diabetes mellitus with hyperosmolarity with coma Billable E13.10 Other specified diabetes mellitus with ketoacidosis without coma Billable E13.11 Other specified diabetes mellitus with ketoacidosis with coma Billable

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