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    v1.0.28
    OpenPayerBilling CodesBurns and corrosions of multiple and unspecified body regionsICD-10-CM t32-corrosions-by-body-surface-extent
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    ICD-10-CM Code For Corrosions Classified According To Extent Of Body Surface Involved: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group T32 includes corrosive injuries classified by the extent of body surface area involved, covering chemical and caustic skin injuries that vary by percent of body surface affected. These ICD-10-CM diagnosis codes are used to document the severity and extent of skin corrosion, capturing clinical complexity, wound burden, and involvement of multiple body regions. Accurate coding within the ICD-10-CM T32 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM T32: Corrosions Classified According To Extent Of Body Surface Involved Overview

    This group represents corrosive injuries to the skin characterized and classified by the percentage or extent of body surface area involved. These diagnoses target integumentary system damage from chemical or caustic exposures and often accompany burns and multiple-region injuries. Accurate coding matters for reimbursement because severity and body surface extent influence clinical management, resource use, and claim adjudication.

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    When to Use

    Use a code from this group when a patient has a documented corrosive injury with specified body surface area involvement or when the extent across multiple regions is clinically assessed. Codes are applied in settings where the percent of body surface affected informs treatment planning, resource allocation, and billing.

    ICD-10-CM Codes

    55 rows

    ICD-10-CM CodeDescription
    T32.0Corrosions involving less than 10% of body surface
    T32.10Corrosions involving 10-19% of body surface with 0% to 9% third degree corrosion
    T32.11Corrosions involving 10-19% of body surface with 10-19% third degree corrosion
    T32.20Corrosions involving 20-29% of body surface with 0% to 9% third degree corrosion
    T32.21Corrosions involving 20-29% of body surface with 10-19% third degree corrosion
    T32.22Corrosions involving 20-29% of body surface with 20-29% third degree corrosion
    T32.30Corrosions involving 30-39% of body surface with 0% to 9% third degree corrosion
    T32.31Corrosions involving 30-39% of body surface with 10-19% third degree corrosion
    T32.32Corrosions involving 30-39% of body surface with 20-29% third degree corrosion
    T32.33Corrosions involving 30-39% of body surface with 30-39% third degree corrosion
    T32.40Corrosions involving 40-49% of body surface with 0% to 9% third degree corrosion
    T32.41Corrosions involving 40-49% of body surface with 10-19% third degree corrosion
    T32.42Corrosions involving 40-49% of body surface with 20-29% third degree corrosion
    T32.43Corrosions involving 40-49% of body surface with 30-39% third degree corrosion
    T32.44Corrosions involving 40-49% of body surface with 40-49% third degree corrosion
    T32.50Corrosions involving 50-59% of body surface with 0% to 9% third degree corrosion
    T32.51Corrosions involving 50-59% of body surface with 10-19% third degree corrosion
    T32.52Corrosions involving 50-59% of body surface with 20-29% third degree corrosion
    T32.53Corrosions involving 50-59% of body surface with 30-39% third degree corrosion
    T32.54Corrosions involving 50-59% of body surface with 40-49% third degree corrosion

    Showing 1–20 of 55

    DRG Codes

    6 rows

    DRG CodeDescription
    927Extensive Burns or Full Thickness Burns with MV >96 Hours with Skin Graft
    928Full Thickness Burn with Skin Graft or Inhalation Injury with CC/MCC
    929Full Thickness Burn with Skin Graft or Inhalation Injury without CC/MCC
    933Extensive Burns or Full Thickness Burns with MV >96 Hours without Skin Graft
    934Full Thickness Burn without Skin Graft or Inhalation Injury
    935Non-Extensive Burns

    Typical Clinical Scenarios

    • An adult presents to the emergency department after accidentally spilling a strong household acid over both lower extremities and portions of the torso while handling a cleaning product. The patient has painful, red, and blistering corrosive injuries involving approximately 10% of total body surface area, requiring acute wound care, pain control, and burn team evaluation; a code from this group is assigned to capture corrosions by extent of body surface involved. Typical codes: T32.10, T32.11
    • An elderly nursing home resident develops diffuse superficial corrosive injuries after prolonged contact with a leaking caustic topical agent that affected multiple body regions including the axillae and groin; the injuries are subacute, with partial-thickness skin loss and risk of infection, prompting outpatient wound management and nursing follow-up. A code in this group is used to document the corrosive injury severity and the multiple-region involvement for care planning and monitoring. Typical codes: T32.50, T32.51
    • A patient admitted for treatment of extensive corrosions develops systemic complications (sepsis and acute kidney injury) following full-thickness corrosive burns involving large percentages of multiple body regions from a chemical exposure at a workplace. The inpatient stay documents the original corrosive injury extent and the subsequent organ complications; a code from this group is used to capture the extent-based corrosions as the primary injury underlying inpatient management. Typical codes: T32.90, T32.99}

    Related Codes

    T30-BURN-AND-CORROSION-BODY-REGION-UNSPECIFIED

    ICD-10-CM Code For Burn And Corrosion Body Region Unspecified: Group Overview

    T31-BURNS-CLASSIFIED-BY-BODY-SURFACE

    ICD-10-CM Code For Burns Classified According To Extent Of Body Surface Involved: 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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