E11.65 Type 2 diabetes mellitus with hyperglycemia

The ICD-10-CM code for Type 2 diabetes mellitus with hyperglycemia is E11.65 (FY2026). It is a billable, claim-ready diagnosis code.

Choosing between codes? See the guide: ICD-10 code for type 2 diabetes.

Classification

Chapter

4: Endocrine, nutritional and metabolic diseases (E00-E89)

Section

E08-E13: Diabetes mellitus (E08-E13)

Category E11

65 codes (48 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to E11.65:

• Diabetes, diabetic (mellitus) (sugar) › with › hyperglycemia
• Diabetes, diabetic (mellitus) (sugar) › type 2 › with › hyperglycemia

U.S. Hospital Utilization

• An estimated 2,091,855 U.S. inpatient stays in 2023 included E11.65 among the documented diagnoses.
• 46,680 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Use of insulin/oral/injectable drugs when type not indicated

3) Diabetes mellitus and the use of insulin, oral hypoglycemics, and injectable non-insulin drugs If the documentation in a medical record does not indicate the type of diabetes but does indicate that the patient uses insulin, code E11-, Type 2 diabetes mellitus, should be assigned. Additional code(s) should be assigned from category Z79 to identify the long-term (current) use of insulin, oral hypoglycemic drugs, or injectable non-insulin antidiabetic, as follows:

Diabetes mellitus (TOC entry)

a. Diabetes mellitus ................................................................................................................... 39

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

Cite This Page

Reference E11.65 with the canonical source and edition:

E11.65 — Type 2 diabetes mellitus with hyperglycemia. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/E11.65

Canonical URL: https://icd10codingpro.com/codes/E11.65