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T31 Burns classified according to extent of body surface involved
BackT31.0Burns involving less than 10% of body surfaceCategoryT31.1Burns involving 10-19% of body surfaceCategory2 →T31.10Burns involving 10-19% of body surface with 0% to 9% third degree burnsCategoryT31.11Burns involving 10-19% of body surface with 10-19% third degree burnsCategoryT31.2Burns involving 20-29% of body surfaceCategory3 →T31.20Burns involving 20-29% of body surface with 0% to 9% third degree burnsCategoryT31.21Burns involving 20-29% of body surface with 10-19% third degree burnsCategoryT31.22Burns involving 20-29% of body surface with 20-29% third degree burnsCategoryT31.3Burns involving 30-39% of body surfaceCategory4 →T31.30Burns involving 30-39% of body surface with 0% to 9% third degree burnsCategoryT31.31Burns involving 30-39% of body surface with 10-19% third degree burnsCategoryT31.32Burns involving 30-39% of body surface with 20-29% third degree burnsCategoryT31.33Burns involving 30-39% of body surface with 30-39% third degree burnsCategoryT31.4Burns involving 40-49% of body surfaceCategory5 →T31.40Burns involving 40-49% of body surface with 0% to 9% third degree burnsCategoryT31.41Burns involving 40-49% of body surface with 10-19% third degree burnsCategoryT31.42Burns involving 40-49% of body surface with 20-29% third degree burnsCategoryT31.43Burns involving 40-49% of body surface with 30-39% third degree burnsCategoryT31.44Burns involving 40-49% of body surface with 40-49% third degree burnsCategoryT31.5Burns involving 50-59% of body surfaceCategory6 →T31.50Burns involving 50-59% of body surface with 0% to 9% third degree burnsCategoryT31.51Burns involving 50-59% of body surface with 10-19% third degree burnsCategoryT31.52Burns involving 50-59% of body surface with 20-29% third degree burnsCategoryT31.53Burns involving 50-59% of body surface with 30-39% third degree burnsCategoryT31.54Burns involving 50-59% of body surface with 40-49% third degree burnsCategoryT31.55Burns involving 50-59% of body surface with 50-59% third degree burnsCategoryT31.6Burns involving 60-69% of body surfaceCategory7 →T31.60Burns involving 60-69% of body surface with 0% to 9% third degree burnsCategoryT31.61Burns involving 60-69% of body surface with 10-19% third degree burnsCategoryT31.62Burns involving 60-69% of body surface with 20-29% third degree burnsCategoryT31.63Burns involving 60-69% of body surface with 30-39% third degree burnsCategoryT31.64Burns involving 60-69% of body surface with 40-49% third degree burnsCategoryT31.65Burns involving 60-69% of body surface with 50-59% third degree burnsCategoryT31.66Burns involving 60-69% of body surface with 60-69% third degree burnsCategoryT31.7Burns involving 70-79% of body surfaceCategory8 →T31.70Burns involving 70-79% of body surface with 0% to 9% third degree burnsCategoryT31.71Burns involving 70-79% of body surface with 10-19% third degree burnsCategoryT31.72Burns involving 70-79% of body surface with 20-29% third degree burnsCategoryT31.73Burns involving 70-79% of body surface with 30-39% third degree burnsCategoryT31.74Burns involving 70-79% of body surface with 40-49% third degree burnsCategoryT31.75Burns involving 70-79% of body surface with 50-59% third degree burnsCategoryT31.76Burns involving 70-79% of body surface with 60-69% third degree burnsCategoryT31.77Burns involving 70-79% of body surface with 70-79% third degree burnsCategoryT31.8Burns involving 80-89% of body surfaceCategory9 →T31.80Burns involving 80-89% of body surface with 0% to 9% third degree burnsCategoryT31.81Burns involving 80-89% of body surface with 10-19% third degree burnsCategoryT31.82Burns involving 80-89% of body surface with 20-29% third degree burnsCategoryT31.83Burns involving 80-89% of body surface with 30-39% third degree burnsCategoryT31.84Burns involving 80-89% of body surface with 40-49% third degree burnsCategoryT31.85Burns involving 80-89% of body surface with 50-59% third degree burnsCategoryT31.86Burns involving 80-89% of body surface with 60-69% third degree burnsCategoryT31.87Burns involving 80-89% of body surface with 70-79% third degree burnsCategoryT31.88Burns involving 80-89% of body surface with 80-89% third degree burnsCategoryT31.9Burns involving 90% or more of body surfaceCategory10 →T31.90Burns involving 90% or more of body surface with 0% to 9% third degree burnsCategoryT31.91Burns involving 90% or more of body surface with 10-19% third degree burnsCategoryT31.92Burns involving 90% or more of body surface with 20-29% third degree burnsCategoryT31.93Burns involving 90% or more of body surface with 30-39% third degree burnsCategoryT31.94Burns involving 90% or more of body surface with 40-49% third degree burnsCategoryT31.95Burns involving 90% or more of body surface with 50-59% third degree burnsCategoryT31.96Burns involving 90% or more of body surface with 60-69% third degree burnsCategoryT31.97Burns involving 90% or more of body surface with 70-79% third degree burnsCategoryT31.98Burns involving 90% or more of body surface with 80-89% third degree burnsCategoryT31.99Burns involving 90% or more of body surface with 90% or more third degree burnsCategory
Category
T31
Burns classified according to extent of body surface involved
NOTE
This category is to be used as the primary code only when the site of the burn is unspecified. It should be used as a supplementary code with categories T20-T25 when the site is specified.
- Chapter
- XIX · Injury, poisoning and certain other consequences of external causes
- Section
- T30-T32
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.