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  5. Corrosions classified according to extent of body surface involved (T32)

Corrosions classified according to extent of body surface involved (T32)

The ICD-10 code T32 series is specifically used to classify corrosions based on the percentage of the body surface area involved. These codes help precisely document the extent of corrosive injury, which can range from less than 10% to 90% or more of the body’s surface.

These codes cover detailed subcategories that include both the total body surface area affected and the proportion of third-degree corrosions, indicating the severity. For example, T32.0 applies to corrosions affecting less than 10% of the body surface, while T32.99 describes corrosions involving 90% or more of body surface with 90% or more third-degree corrosions. Common terms such as “corrosion involving less than 10 percent of body surface” or “burn any degree involving 20-29 percent of body surface” correspond to specific T32 codes. This categorization supports precise reporting and treatment planning by linking common descriptions of burn or corrosion injuries to their exact ICD-10 code for corrosions classified by extent of body surface involved.

  • Injury, poisoning and certain other consequences of external causes (S00–T88)

    • Burns and corrosions of multiple and unspecified body regions (T30-T32)

        • Corrosions classified according to extent of body surface involved (T32)

        • T32 Corrosions classified according to extent of body surface involved
        • T32.0 Corrosions involving less than 10% of body surface
        • T32.1 Corrosions involving 10-19% 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
        • T32.2 Corrosions involving 20-29% of body surface
        • 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
        • T32.3 Corrosions involving 30-39% of body surface
        • 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
        • T32.4 Corrosions involving 40-49% of body surface
        • 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
        • T32.5 Corrosions involving 50-59% of body surface
        • 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
        • T32.55 Corrosions involving 50-59% of body surface with 50-59% third degree corrosion
        • T32.6 Corrosions involving 60-69% of body surface
        • T32.60 Corrosions involving 60-69% of body surface with 0% to 9% third degree corrosion
        • T32.61 Corrosions involving 60-69% of body surface with 10-19% third degree corrosion
        • T32.62 Corrosions involving 60-69% of body surface with 20-29% third degree corrosion
        • T32.63 Corrosions involving 60-69% of body surface with 30-39% third degree corrosion
        • T32.64 Corrosions involving 60-69% of body surface with 40-49% third degree corrosion
        • T32.65 Corrosions involving 60-69% of body surface with 50-59% third degree corrosion
        • T32.66 Corrosions involving 60-69% of body surface with 60-69% third degree corrosion
        • T32.7 Corrosions involving 70-79% of body surface
        • T32.70 Corrosions involving 70-79% of body surface with 0% to 9% third degree corrosion
        • T32.71 Corrosions involving 70-79% of body surface with 10-19% third degree corrosion
        • T32.72 Corrosions involving 70-79% of body surface with 20-29% third degree corrosion
        • T32.73 Corrosions involving 70-79% of body surface with 30-39% third degree corrosion
        • T32.74 Corrosions involving 70-79% of body surface with 40-49% third degree corrosion
        • T32.75 Corrosions involving 70-79% of body surface with 50-59% third degree corrosion
        • T32.76 Corrosions involving 70-79% of body surface with 60-69% third degree corrosion
        • T32.77 Corrosions involving 70-79% of body surface with 70-79% third degree corrosion
        • T32.8 Corrosions involving 80-89% of body surface
        • T32.80 Corrosions involving 80-89% of body surface with 0% to 9% third degree corrosion
        • T32.81 Corrosions involving 80-89% of body surface with 10-19% third degree corrosion
        • T32.82 Corrosions involving 80-89% of body surface with 20-29% third degree corrosion
        • T32.83 Corrosions involving 80-89% of body surface with 30-39% third degree corrosion
        • T32.84 Corrosions involving 80-89% of body surface with 40-49% third degree corrosion
        • T32.85 Corrosions involving 80-89% of body surface with 50-59% third degree corrosion
        • T32.86 Corrosions involving 80-89% of body surface with 60-69% third degree corrosion
        • T32.87 Corrosions involving 80-89% of body surface with 70-79% third degree corrosion
        • T32.88 Corrosions involving 80-89% of body surface with 80-89% third degree corrosion
        • T32.9 Corrosions involving 90% or more of body surface
        • T32.90 Corrosions involving 90% or more of body surface with 0% to 9% third degree corrosion
        • T32.91 Corrosions involving 90% or more of body surface with 10-19% third degree corrosion
        • T32.92 Corrosions involving 90% or more of body surface with 20-29% third degree corrosion
        • T32.93 Corrosions involving 90% or more of body surface with 30-39% third degree corrosion
        • T32.94 Corrosions involving 90% or more of body surface with 40-49% third degree corrosion
        • T32.95 Corrosions involving 90% or more of body surface with 50-59% third degree corrosion
        • T32.96 Corrosions involving 90% or more of body surface with 60-69% third degree corrosion
        • T32.97 Corrosions involving 90% or more of body surface with 70-79% third degree corrosion
        • T32.98 Corrosions involving 90% or more of body surface with 80-89% third degree corrosion
        • T32.99 Corrosions involving 90% or more of body surface with 90% or more third degree corrosion

Instructional Notations

  • This category is to be used as the primary code only when the site of the corrosion is unspecified. It may be used as a supplementary code with categories T20 T25