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E13.40

✓ Billable

Other specified diabetes mellitus with diabetic neuropathy, unspecified

Endocrine, nutritional and metabolic diseases (E00-E89)

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

E13
  • • 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.-)

📋 Code Instructions

inherited
E13
  • • 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)

Clinical Description

ICD-10-CM code E13.40 represents other specified diabetes mellitus with diabetic neuropathy, unspecified. This code falls under the Endocrine, nutritional and metabolic diseases (E00-E89) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.

This is a 6-character code at the 5th level of specificity. This is the most specific code available in this subcategory. Coders should note that E13.40 has 7 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code E13.40?

ICD-10-CM code E13.40 is "Other specified diabetes mellitus with diabetic neuropathy, unspecified". It belongs to the category: Endocrine, nutritional and metabolic diseases (E00-E89).

Is E13.40 a billable ICD-10 code?

Yes, E13.40 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What codes are excluded with E13.40?

E13.40 has 7 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Related Codes in E13.4

Other codes in the same category that may be relevant for differential coding:

E13.41Other specified diabetes mellitus with diabetic mononeuropathyE13.42Other specified diabetes mellitus with diabetic polyneuropathyE13.43Other specified diabetes mellitus with diabetic autonomic (poly)neuropathyE13.44Other specified diabetes mellitus with diabetic amyotrophyE13.49Other specified diabetes mellitus with other diabetic neurological complication

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Code Information

CodeE13.40
BillableYes
ParentE13.4
CategoryEndocrine, nutritional and metabolic diseases (E00-E89)
Excludes17 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)