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

The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group T31 includes codes for burns classified by the extent of body surface involved, covering burns that affect multiple or unspecified body regions and varying degrees of total body surface area. These ICD-10-CM diagnosis codes are used to document clinical scenarios where burn size and distribution are essential to capture disease severity, required level of care, and potential complications. Accurate coding within the ICD-10-CM T31 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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ICD-10-CM T31: Burns Classified According To Extent Of Body Surface Involved Overview

This group represents codes for burns classified by the percentage of total body surface area affected and the extent of involvement across multiple or unspecified body regions. It targets thermal, chemical, or electrical injuries where the body surface area burned is a critical factor in clinical management and outcomes. Accurate coding matters for reimbursement because severity and extent drive resource utilization and payment determination.

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

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ICD-10-CM T31: Burns Classified According To Extent Of Body Surface Involved Overview

When to Use

Use a code from this group when documentation specifies the total body surface area burned or indicates burns involving multiple or unspecified body regions. These codes apply when the extent of body surface involved is relevant to care, prognosis, or billing.

ICD-10-CM Codes

55 rows

ICD-10-CM Code	Description
T31.0	Burns involving less than 10% of body surface
T31.10	Burns involving 10-19% of body surface with 0% to 9% third degree burns
T31.11	Burns involving 10-19% of body surface with 10-19% third degree burns
T31.20	Burns involving 20-29% of body surface with 0% to 9% third degree burns
T31.21	Burns involving 20-29% of body surface with 10-19% third degree burns
T31.22	Burns involving 20-29% of body surface with 20-29% third degree burns
T31.30	Burns involving 30-39% of body surface with 0% to 9% third degree burns
T31.31	Burns involving 30-39% of body surface with 10-19% third degree burns
T31.32	Burns involving 30-39% of body surface with 20-29% third degree burns
T31.33	Burns involving 30-39% of body surface with 30-39% third degree burns
T31.40	Burns involving 40-49% of body surface with 0% to 9% third degree burns
T31.41	Burns involving 40-49% of body surface with 10-19% third degree burns
T31.42	Burns involving 40-49% of body surface with 20-29% third degree burns
T31.43	Burns involving 40-49% of body surface with 30-39% third degree burns
T31.44	Burns involving 40-49% of body surface with 40-49% third degree burns
T31.50	Burns involving 50-59% of body surface with 0% to 9% third degree burns
T31.51	Burns involving 50-59% of body surface with 10-19% third degree burns
T31.52	Burns involving 50-59% of body surface with 20-29% third degree burns
T31.53	Burns involving 50-59% of body surface with 30-39% third degree burns
T31.54	Burns involving 50-59% of body surface with 40-49% third degree burns

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

Adult found unconscious after a house fire with second- and third-degree burns covering roughly one quarter of total body surface area, unstable vitals and respiratory distress from smoke inhalation; brought to the emergency department for airway protection, fluid resuscitation, and burn assessment. A percentage-based burn extent code from this group is assigned to document the extent of burns across multiple body regions for acute management and disposition. Typical codes: T31.20, T31.21
Elderly nursing home resident with extensive superficial partial-thickness burns following a scalding bath incident, involving multiple regions but estimated at less than 10% of total body surface area; seen in clinic for wound care planning and transfer to a specialized burn unit for ongoing wound management. A code from this group is used to capture the extent of body surface involved across multiple unspecified regions to guide care level and monitoring. Typical codes: T31.10, T31.11
Patient several weeks post-burn with persistent nonhealing graft sites and contractures after full-thickness burns that initially involved more than half of the body surface area; presenting to rehabilitation for functional restoration and documentation of burn sequelae and extent of original injury. A group extent code is recorded to reflect the original widespread burn involvement as a condition influencing current treatment and rehabilitation. Typical codes: T31.70, T31.71

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

T32-CORROSIONS-BY-BODY-SURFACE-EXTENT

ICD-10-CM Code For Corrosions 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
T31.0	Burns involving less than 10% of body surface
T31.10	Burns involving 10-19% of body surface with 0% to 9% third degree burns
T31.11	Burns involving 10-19% of body surface with 10-19% third degree burns
T31.20	Burns involving 20-29% of body surface with 0% to 9% third degree burns
T31.21	Burns involving 20-29% of body surface with 10-19% third degree burns
T31.22	Burns involving 20-29% of body surface with 20-29% third degree burns
T31.30	Burns involving 30-39% of body surface with 0% to 9% third degree burns
T31.31	Burns involving 30-39% of body surface with 10-19% third degree burns
T31.32	Burns involving 30-39% of body surface with 20-29% third degree burns
T31.33	Burns involving 30-39% of body surface with 30-39% third degree burns
T31.40	Burns involving 40-49% of body surface with 0% to 9% third degree burns
T31.41	Burns involving 40-49% of body surface with 10-19% third degree burns
T31.42	Burns involving 40-49% of body surface with 20-29% third degree burns
T31.43	Burns involving 40-49% of body surface with 30-39% third degree burns
T31.44	Burns involving 40-49% of body surface with 40-49% third degree burns
T31.50	Burns involving 50-59% of body surface with 0% to 9% third degree burns
T31.51	Burns involving 50-59% of body surface with 10-19% third degree burns
T31.52	Burns involving 50-59% of body surface with 20-29% third degree burns
T31.53	Burns involving 50-59% of body surface with 30-39% third degree burns
T31.54	Burns involving 50-59% of body surface with 40-49% third degree burns

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

Adult found unconscious after a house fire with second- and third-degree burns covering roughly one quarter of total body surface area, unstable vitals and respiratory distress from smoke inhalation; brought to the emergency department for airway protection, fluid resuscitation, and burn assessment. A percentage-based burn extent code from this group is assigned to document the extent of burns across multiple body regions for acute management and disposition. Typical codes: T31.20, T31.21
Elderly nursing home resident with extensive superficial partial-thickness burns following a scalding bath incident, involving multiple regions but estimated at less than 10% of total body surface area; seen in clinic for wound care planning and transfer to a specialized burn unit for ongoing wound management. A code from this group is used to capture the extent of body surface involved across multiple unspecified regions to guide care level and monitoring. Typical codes: T31.10, T31.11
Patient several weeks post-burn with persistent nonhealing graft sites and contractures after full-thickness burns that initially involved more than half of the body surface area; presenting to rehabilitation for functional restoration and documentation of burn sequelae and extent of original injury. A group extent code is recorded to reflect the original widespread burn involvement as a condition influencing current treatment and rehabilitation. Typical codes: T31.70, T31.71

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

T32-CORROSIONS-BY-BODY-SURFACE-EXTENT

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

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ICD-10-CM T31: Burns Classified According To Extent Of Body Surface Involved Overview

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

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ICD-10-CM T31: Burns 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 Burns Classified According To Extent Of Body Surface Involved: Group Overview

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ICD-10-CM T31: Burns Classified According To Extent Of Body Surface Involved Overview

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

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

ICD-10-CM T31: Burns 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 classify burns by total body surface percentage?

How do codes in the T31 group indicate third-degree burn extent?

When would a coder use `T31.33` versus `T31.30`?

How does accurate selection of a T31 code affect reimbursement?

Which DRGs are related to extensive or full-thickness burns noted in T31?

References

When to Use

ICD-10-CM Codes

DRG Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-CM codes classify burns by total body surface percentage?

How do codes in the T31 group indicate third-degree burn extent?

When would a coder use `T31.33` versus `T31.30`?

How does accurate selection of a T31 code affect reimbursement?

Which DRGs are related to extensive or full-thickness burns noted in T31?

References