Corrosions classified according to extent of body surface involved (T32) ICD-10-CM
The T32 code range covers corrosions classified according to extent of body surface involved with 65 ICD-10-CM diagnosis codes. 55 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the T32 Range 65 codes · 55 billable
- T32 Corrosions classified according to extent of body surface involvedNon-billable
- T32.0 Corrosions involving less than 10% of body surface
- T32.1 Corrosions involving 10-19% of body surfaceNon-billable
- 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 surfaceNon-billable
- 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 surfaceNon-billable
- 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 surfaceNon-billable
- 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 surfaceNon-billable
- 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 surfaceNon-billable
- 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 surfaceNon-billable
- 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 surfaceNon-billable
- 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 surfaceNon-billable
- 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
About the T32 Code Range
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.
Questions About This Page
How many billable codes are in the T32 range?
Of the 65 codes in this range, 55 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the T32 range classify?
The range classifies corrosions classified according to extent of body surface involved. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
