Code
Hierarchy
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S00-T88 Injury, poisoning and certain other consequences of external causes (S00-T88)
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T30-T32 Burns and corrosions of multiple and unspecified body regions (T30-T32)
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T31 Burns classified according to extent of body surface involved
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T31.7 Burns involving 70-79% of body surface
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T31.70 Burns involving 70-79% of body surface with 0% to 9% third degree burns
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T31.71 Burns involving 70-79% of body surface with 10-19% third degree burns
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T31.72 Burns involving 70-79% of body surface with 20-29% third degree burns
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T31.73 Burns involving 70-79% of body surface with 30-39% third degree burns
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T31.74 Burns involving 70-79% of body surface with 40-49% third degree burns
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T31.75 Burns involving 70-79% of body surface with 50-59% third degree burns
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T31.76 Burns involving 70-79% of body surface with 60-69% third degree burns
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T31.77 Burns involving 70-79% of body surface with 70-79% third degree burns
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Notes
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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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Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
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The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.