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    v1.0.28
    OpenPayerBilling CodesDiabetes mellitusICD-10-CM e13-other-specified-diabetes-mellitus
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    ICD-10-CM Code For Other Specified Diabetes Mellitus: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group E13 includes other specified diabetes mellitus diagnoses such as diabetes due to an underlying condition, drug- or chemical-induced diabetes, and other specified forms not classified as type 1 or type 2. These ICD-10-CM diagnosis codes are used to document clinical scenarios that capture disease etiology, severity, and any associated complications or organ involvement relevant to diabetes management. Accurate coding within the ICD-10-CM E13 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM E13: Other Specified Diabetes Mellitus Overview

    The ICD-10-CM E13 diagnosis group captures other specified diabetes mellitus subtypes that do not fit the classic type 1 or type 2 categories but have identifiable causes or presentations. These codes target endocrine and metabolic disorders affecting glucose regulation and related organ systems. Accurate coding matters for reimbursement because it documents the specific diabetes etiology and complications that influence medical necessity and claim adjudication.

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    When to Use

    Use a code from this group when the clinical record identifies diabetes attributable to a specified cause or when the diabetes does not qualify as type 1 or type 2 but the etiology is documented. Select the most specific E13 subcode that reflects any documented complications, organ system involvement, or associated conditions.

    ICD-10-CM Codes

    86 rows

    ICD-10-CM CodeDescription
    E13.00Other specified diabetes mellitus with hyperosmolarity without nonketotic hyperglycemic-hyperosmolar coma (NKHHC)
    E13.01Other specified diabetes mellitus with hyperosmolarity with coma
    E13.10Other specified diabetes mellitus with ketoacidosis without coma
    E13.11Other specified diabetes mellitus with ketoacidosis with coma
    E13.21Other specified diabetes mellitus with diabetic nephropathy
    E13.22Other specified diabetes mellitus with diabetic chronic kidney disease
    E13.29Other specified diabetes mellitus with other diabetic kidney complication
    E13.311Other specified diabetes mellitus with unspecified diabetic retinopathy with macular edema
    E13.319Other specified diabetes mellitus with unspecified diabetic retinopathy without macular edema
    E13.3211Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, right eye
    E13.3212Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, left eye
    E13.3213Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, bilateral
    E13.3219Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy with macular edema, unspecified eye
    E13.3291Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, right eye
    E13.3292Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, left eye
    E13.3293Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, bilateral
    E13.3299Other specified diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema, unspecified eye
    E13.3311Other specified diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, right eye
    E13.3312Other specified diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, left eye
    E13.3313Other specified diabetes mellitus with moderate nonproliferative diabetic retinopathy with macular edema, bilateral

    Showing 1–20 of 86

    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

    • A middle-aged patient with known pancreatic exocrine disease presents for routine endocrinology follow-up reporting progressively elevated fasting glucose and recent HbA1c of 8.2% despite diet changes; there is no clear type 1 features and autoantibodies are negative, so the hyperglycemia is attributed to another specified etiology of diabetes requiring adjustment of oral agents. A diagnosis from this group is assigned to capture diabetes due to an underlying nonclassic cause rather than type 1 or type 2. Typical codes: E13.65, E13.9
    • An older adult is seen in the emergency department with nonketotic hyperosmolar hyperglycemic state triggered by an acute infection; historical records indicate diabetes secondary to a medication and chronic pancreatitis rather than primary type 2, and inpatient management is initiated for severe hyperglycemia without ketoacidosis. Because the diabetes is specified as due to another known cause and the presentation is an acute metabolic complication, an appropriate code from this group reflecting hyperglycemic crisis is assigned. Typical codes: E13.00, E13.01
    • A patient with long-standing diabetes due to a genetic pancreatic disorder attends a podiatry visit for a nonhealing foot ulcer with surrounding cellulitis; the visit documents chronic diabetic peripheral neuropathy and chronic kidney disease related to the secondary diabetes, necessitating coding for the underlying specified diabetes with associated microvascular complications. A code from this group that identifies the specified diabetes along with the neuropathic or renal complication is used to reflect the comorbidity affecting treatment and follow-up. Typical codes: E13.3491, E13.3311

    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

    E11-TYPE-2-DIABETES-MELLITUS

    ICD-10-CM Code For Type 2 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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