E11 ICD-10-CM Code: Type 2 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
E11Type 2 diabetes mellitus
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where E11 sits
- 1
Chapter 4
Endocrine, nutritional and metabolic diseases (E00-E89)
- 2
Section
Diabetes mellitus (E08-E13)
- 3
Category E11
Type 2 diabetes mellitus
- 4
Code E11
Type 2 diabetes mellitus
More specific choices
Codes under E11
E11 is a non-billable category. Choose the child code that best matches the documented diagnosis.
E11.0Type 2 diabetes mellitus with hyperosmolarity
E11.1Type 2 diabetes mellitus with ketoacidosis
E11.2Type 2 diabetes mellitus with kidney complications
E11.3Type 2 diabetes mellitus with ophthalmic complications
E11.4Type 2 diabetes mellitus with neurological complications
E11.5Type 2 diabetes mellitus with circulatory complications
E11.6Type 2 diabetes mellitus with other specified complications
E11.8Type 2 diabetes mellitus with unspecified complications
E11.9Type 2 diabetes mellitus without complications
E11.AType 2 diabetes mellitus without complications in remission
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for E11.
Code first
No “code first” instruction is listed for E11.
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 underlying condition (E08.-)
- 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.-)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for E11.
Transparency
Source and release
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 sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code E11 mean?
E11 is the FY 2027 U.S. ICD-10-CM code for “Type 2 diabetes mellitus.”
Is E11 a billable or specific ICD-10-CM code?
No. E11 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 E11 located in ICD-10-CM?
E11 is listed in Chapter 4, Endocrine, nutritional and metabolic diseases (E00-E89), within Diabetes mellitus (E08-E13) (E08–E13), under category E11, Type 2 diabetes mellitus.
What coding notes are listed for E11?
No inclusion terms are listed for E11 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 underlying condition (E08.-); 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.-). No Excludes2 note is listed.
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