U.S. ICD-10-CM · FY 2027

E13 ICD-10-CM Code: Other specified diabetes mellitus

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

E13

Other specified diabetes mellitus

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where E13 sits

  1. 1

    Chapter 4

    Endocrine, nutritional and metabolic diseases (E00-E89)

  2. 2

    Section

    Diabetes mellitus (E08-E13)

  3. 3

    Category E13

    Other specified diabetes mellitus

  4. 4

    Code E13

    Other specified diabetes mellitus

More specific choices

Codes under E13

E13 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for E13.

Code first

No “code first” instruction is listed for E13.

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)

Excludes1

Conditions that should not be reported together with this code.

  • 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.-)

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for E13.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code E13 mean?

E13 is the FY 2027 U.S. ICD-10-CM code for “Other specified diabetes mellitus.”

Is E13 a billable or specific ICD-10-CM code?

No. E13 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is E13 located in ICD-10-CM?

E13 is listed in Chapter 4, Endocrine, nutritional and metabolic diseases (E00-E89), within Diabetes mellitus (E08-E13) (E08–E13), under category E13, Other specified diabetes mellitus.

What coding notes are listed for E13?

No inclusion terms are listed for E13 in this reference record. No code-first instruction is listed. Additional-code instructions: 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). Excludes1 notes: 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.-). No Excludes2 note is listed.

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