Criteria for superficial surgical incisional (SSI) infection – all of the following:
(1) onset <= 30 days after the surgical procedure
(2) only skin or subcutaneous tissue involved
(3) one or more of the following:
(3a) purulent drainage from a superficial incision
(3b) diagnosis of superficial incisional surgical site infection made by a physician
(3c) all of the following
(3c1) one or more of the following: pain, tenderness, redness, localized swelling, heat (signs of inflammation)
(3c2) incision deliberately opened by the surgeon
(3c3) culture positive or not done (NOT negative culture)
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Subclassification
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Features
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superficial incisional primary (SIP)
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infection in the primary (key) incision for an operation
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superficial incisional secondary (SIS)
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infection in a secondary incision when > 1 incision is made
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Exclusions:
(1) stitch or suture abscess
(2) stab wound
(3) circumcision site
(4) burn wound
(5) deep incisional SSI
