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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ICD-10-CM Code For Corrosions Classified According To Extent Of Body Surface Involved: Group Overview

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

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

Showing 1–20 of 55

DRG Codes

6 rows

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

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.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.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.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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When to Use

ICD-10-CM Codes

55 rows

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

Showing 1–20 of 55

DRG Codes

6 rows

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

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.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.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.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.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

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ICD-10-CM Code For Corrosions Classified According To Extent Of Body Surface Involved: Group Overview

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

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

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

References

ICD-10-CM Code For Corrosions Classified According To Extent Of Body Surface Involved: Group Overview

Sign up for ICD-10-CM Code For Corrosions Classified According To Extent Of Body Surface Involved: Group Overview policy alerts

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

ICD-10-CM Code For Corrosions Classified According To Extent Of Body Surface Involved: Group Overview

Sign up for ICD-10-CM Code For Corrosions Classified According To Extent Of Body Surface Involved: Group Overview policy alerts

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

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-CM codes describe corrosions involving 10-19% of body surface?

How does the T32 group capture severity of skin corrosions?

Which codes apply when 50-59% of body surface is involved with 30-39% third-degree corrosion?

What related DRGs correspond to extensive or full-thickness burn care in the context of T32 codes?

How should coders document corrosions to ensure accurate reimbursement?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-CM codes describe corrosions involving 10-19% of body surface?

How does the T32 group capture severity of skin corrosions?

Which codes apply when 50-59% of body surface is involved with 30-39% third-degree corrosion?

What related DRGs correspond to extensive or full-thickness burn care in the context of T32 codes?

How should coders document corrosions to ensure accurate reimbursement?

References