T31 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Burns classified according to extent of body surface involved.
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.
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Burns involving less than 10% of body surface
Burns involving 10-19% of body surface
Burns involving 20-29% of body surface
Burns involving 30-39% of body surface
Burns involving 40-49% of body surface
Burns involving 50-59% of body surface
Burns involving 60-69% of body surface
Burns involving 70-79% of body surface
Burns involving 80-89% of body surface
Burns involving 90% or more of body surface
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