T28 Burn and corrosion of other internal organs

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Burn and corrosion of other internal organs is T28 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
T26-T28: Burns and corrosions confined to eye and internal organs (T26-T28)
Category T28
23 codes (18 billable)
FY2026 Status
Stable since FY2024
Use Additional Code
  • external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98)
  • external cause code to identify place (Y92)

Official Coding Guidelines

Burn degree classification; T26-T28 site-only (not degree)

Burns are classified by depth as first degree (erythema), second degree (blistering), and third degree (full-thickness involvement). Burns of the eye and internal organs (T26-T28) are classified by site, but not by degree.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.19.d
Sequence blood vessel/nerve injury first (fragment)

injury is to the blood vessels or nerves, that injury should be sequenced first.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.19.b.2

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Related Codes

More Specific Codes

T28.0 Burn of mouth and pharynx T28.1 Burn of esophagus T28.2 Burn of other parts of alimentary tract T28.3 Burn of internal genitourinary organs T28.4 Burns of other and unspecified internal organs T28.40 Burn of unspecified internal organ T28.41 Burn of ear drum T28.411 Burn of right ear drum T28.412 Burn of left ear drum T28.419 Burn of unspecified ear drum T28.49 Burn of other internal organ T28.5 Corrosion of mouth and pharynx T28.6 Corrosion of esophagus T28.7 Corrosion of other parts of alimentary tract T28.8 Corrosion of internal genitourinary organs T28.9 Corrosions of other and unspecified internal organs T28.90 Corrosions of unspecified internal organs T28.91 Corrosions of ear drum T28.911 Corrosions of right ear drum T28.912 Corrosions of left ear drum T28.919 Corrosions of unspecified ear drum T28.99 Corrosions of other internal organs

Related Codes in T28

T28.0 Burn of mouth and pharynx T28.1 Burn of esophagus T28.2 Burn of other parts of alimentary tract T28.3 Burn of internal genitourinary organs T28.4 Burns of other and unspecified internal organs T28.40 Burn of unspecified internal organ T28.41 Burn of ear drum T28.411 Burn of right ear drum T28.412 Burn of left ear drum T28.419 Burn of unspecified ear drum T28.49 Burn of other internal organ T28.5 Corrosion of mouth and pharynx T28.6 Corrosion of esophagus T28.7 Corrosion of other parts of alimentary tract T28.8 Corrosion of internal genitourinary organs T28.9 Corrosions of other and unspecified internal organs T28.90 Corrosions of unspecified internal organs T28.91 Corrosions of ear drum T28.911 Corrosions of right ear drum T28.912 Corrosions of left ear drum
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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