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    v1.0.28
    OpenPayerBilling CodesOther and unspecified disorders of the circulatory systemICD-10-CM i96-gangrene-not-elsewhere-classified
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    ICD-10-CM Code For Gangrene Not Elsewhere Classified: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group I96 includes diagnoses of gangrene not elsewhere classified, encompassing tissue necrosis due to ischemia or infection when no more specific gangrene code applies. These ICD-10-CM diagnosis codes are used to document clinical scenarios such as peripheral arterial occlusion, diabetic or non-diabetic ischemic necrosis, and gangrenous infection that affect extremities or other tissues, capturing disease severity and complications. Accurate coding within the ICD-10-CM I96 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM I96: Gangrene, Not Elsewhere Classified Overview

    The ICD-10-CM I96 group represents gangrene not otherwise classified, a condition involving tissue death due to loss of blood supply or severe infection affecting peripheral tissues. These diagnoses target the vascular and integumentary consequences of ischemia and infection and often involve extremities. Accurate coding matters for reimbursement because it conveys severity, potential complications, and resource needs to payers.

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    When to Use

    Use a code from this group when clinical documentation indicates gangrene but does not specify a more precise etiologic or anatomic code within the classification. These codes apply when gangrene is present due to peripheral vascular compromise or infection and no other specific gangrene code is documented.

    ICD-10-CM Codes

    1 rows

    ICD-10-CM CodeDescription
    I96Gangrene, not elsewhere classified

    DRG Codes

    5 rows

    DRG CodeDescription
    299Peripheral Vascular Disorders with MCC
    300Peripheral Vascular Disorders with CC
    301Peripheral Vascular Disorders without CC/MCC
    791Prematurity with Major Problems
    793Full Term Neonate with Major Problems

    Typical Clinical Scenarios

    • An elderly patient with peripheral arterial disease presents to the emergency department with rapidly progressing blackened tissue of the toes after weeks of worsening ischemic rest pain; exam shows dry, mummified tissue without obvious infection and Doppler signals are absent. A diagnosis from this group is assigned to capture gangrenous tissue due to vascular insufficiency requiring urgent assessment for revascularization or amputation. Typical codes: I96
    • A middle-aged patient with poorly controlled diabetes and neuropathy is seen in outpatient wound clinic for a chronic foot ulcer that has developed surrounding necrosis and tissue loss despite local care; there is no clear active systemic infection but the tissue is nonviable. This code from the group is used to document gangrene as a chronic complication of diabetic peripheral vascular disease to guide care planning and monitoring. Typical codes: I96
    • A hospitalized patient recovering from sepsis and hypotension develops focal black discoloration of the distal fingers consistent with ischemic necrosis after prolonged vasopressor support; the team documents nonviable tissue as a complication of critical illness. A code from this group is assigned to record gangrene as a complication/comorbidity related to ischemic injury in the inpatient course. Typical codes: I96

    Related Codes

    I95-HYPOTENSION-DISORDERS

    ICD-10-CM Code For Hypotension: Group Overview

    I97-INTRAOPERATIVE-CIRCULATORY-COMPLICATIONS

    ICD-10-CM Code For Intraoperative And Postprocedural Circulatory Complications: Group Overview

    I99-OTHER-AND-UNSPECIFIED-CIRCULATORY-DISORDERS

    ICD-10-CM Code For Other And Unspecified Disorders Of Circulatory System: 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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