Burns are classified according to severity as critical, moderate, or minor.

The following burns are classified as critical.

a. Burns complicated by respiratory tract injuries or other major injuries or fractures.

b. Third-degree burns involving the face, hands, feet, or genital area.

c. Third-degree burns that cover more than 10 percent of an adult’s body.

d. Third-degree burns that cover more than 2-3 percent of a child’s body.

e. Second-degree burns that cover more than 30 percent of an adult’s body or 20 percent of a child’s body.

f. First-degree burns that cover more than 75 percent of the body.

g. Burns of the hands, feet, or genitalia.

h. Most chemical burns.

i. Most electrical burns.

j. Burns in patients with serious underlying medical conditions such as diabetes, seizure disorders, and hypertension.

k. Burns complicated by fracture or soft-tissue injury.