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    v1.0.28
    OpenPayerBilling CodesDiabetes mellitusICD-10-CM e11-type-2-diabetes-mellitus
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    ICD-10-CM Code For Type 2 Diabetes Mellitus: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group E11 includes diagnoses for type 2 diabetes mellitus and its various manifestations, including hyperglycemia without complications and diabetes with specified complications affecting organs such as the kidneys, eyes, nerves, and circulatory system. These ICD-10-CM diagnosis codes are used to document clinical scenarios that capture disease severity, presence of acute or chronic complications, and organ system involvement relevant to diabetes care. Accurate coding within the ICD-10-CM E11 group supports appropriate reimbursement and complete clinical documentation.

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    ICD-10-CM E11: Type 2 Diabetes Mellitus Overview

    The ICD-10-CM E11 code group represents diagnoses for type 2 diabetes mellitus, a chronic metabolic disorder characterized by insulin resistance and relative insulin deficiency. These diagnoses target the endocrine and metabolic system and include documentation of disease complications and organ system involvement. Accurate coding is important for complete clinical documentation and for appropriate reimbursement.

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    When to Use

    Assign a code from ICD-10-CM E11 when a patient has a clinical diagnosis of type 2 diabetes mellitus documented in the medical record. Use specific subcodes when there is documentation of complications, associated conditions, or when sequencing for encounter type and treatment necessitates specificity.

    ICD-10-CM Codes

    87 rows

    ICD-10-CM CodeDescription
    E11.00Type 2 diabetes mellitus with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC)
    E11.01Type 2 diabetes mellitus with hyperosmolarity with coma
    E11.10Type 2 diabetes mellitus with ketoacidosis without coma
    E11.11Type 2 diabetes mellitus with ketoacidosis with coma
    E11.21Type 2 diabetes mellitus with diabetic nephropathy
    E11.22Type 2 diabetes mellitus with diabetic chronic kidney disease
    E11.29Type 2 diabetes mellitus with other diabetic kidney complication
    E11.311Type 2 diabetes mellitus with unspecified diabetic retinopathy with macular edema
    E11.319Type 2 diabetes mellitus with unspecified diabetic retinopathy without macular edema
    E11.3211Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, right eye
    E11.3212Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, left eye
    E11.3213Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, bilateral
    E11.3219Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, unspecified eye
    E11.3291Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, right eye
    E11.3292Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, left eye
    E11.3293Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, bilateral
    E11.3299Type 2 diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, unspecified eye
    E11.3311Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, right eye
    E11.3312Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, left eye
    E11.3313Type 2 diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, bilateral

    Showing 1–20 of 87

    DRG Codes

    19 rows

    DRG CodeDescription
    008Simultaneous Pancreas and Kidney Transplant
    010Pancreas Transplant
    019Simultaneous Pancreas and Kidney Transplant with Hemodialysis
    073Cranial and Peripheral Nerve Disorders with MCC
    074Cranial and Peripheral Nerve Disorders without MCC
    124Other Disorders of the Eye with MCC or Thrombolytic Agent
    125Other Disorders of the Eye without MCC
    299Peripheral Vascular Disorders with MCC
    300Peripheral Vascular Disorders with CC
    301Peripheral Vascular Disorders without CC/MCC
    637Diabetes with MCC
    638Diabetes with CC
    639Diabetes without CC/MCC
    673Other Kidney and Urinary Tract Procedures with MCC
    674Other Kidney and Urinary Tract Procedures with CC
    675Other Kidney and Urinary Tract Procedures without CC/MCC
    698Other Kidney and Urinary Tract Diagnoses with MCC
    699Other Kidney and Urinary Tract Diagnoses with CC
    700Other Kidney and Urinary Tract Diagnoses without CC/MCC

    Typical Clinical Scenarios

    • An adult patient with known type 2 diabetes presents to primary care for routine follow-up reporting elevated fasting glucose and hemoglobin A1c above goal despite oral medications; there are no acute complications, but chart review documents chronic hyperglycemia and ongoing management needs. A diagnosis from this group is assigned to capture the stable chronic type 2 diabetes without complications to guide longitudinal care and medication management. Typical codes: E11.9.
    • An older patient with long-standing type 2 diabetes arrives to the emergency department with new onset foot ulcer showing depth to subcutaneous tissue and surrounding cellulitis; wound culture and debridement are performed and diabetes is a contributing factor to poor wound healing. A code from this group that specifies type 2 diabetes with a skin/soft tissue complication and associated infection is assigned to reflect the diabetes-related complication driving acute treatment. Typical codes: E11.621, E11.622.
    • A middle-aged patient with type 2 diabetes is seen in ophthalmology for progressive vision changes and is found to have diabetic retinopathy with macular edema requiring treatment; the visit documents diabetes as the underlying cause of the retinal disease. A code from this group that denotes type 2 diabetes with ophthalmic complications is assigned to capture the diabetes-related end-organ complication impacting specialty care. Typical codes: E11.311, E11.319.

    Related Codes

    E08-DIABETES-MELLITUS-DUE-TO-UNDERLYING-CONDITION

    ICD-10-CM Code For Diabetes Mellitus Due To Underlying Condition: Group Overview

    E09-DRUG-OR-CHEMICAL-INDUCED-DIABETES-MELLITUS

    ICD-10-CM Code For Drug Or Chemical Induced Diabetes Mellitus: Group Overview

    E10-TYPE-1-DIABETES-MELLITUS

    ICD-10-CM Code For Type 1 Diabetes Mellitus: Group Overview

    E13-OTHER-SPECIFIED-DIABETES-MELLITUS

    ICD-10-CM Code For Other Specified Diabetes Mellitus: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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