What is the icd9 code for surgery to repair re-opening of incision?

The ICD-9 code for surgery to repair the reopening of an incision is 998.83, which is used for "Surgical wound dehiscence." This code refers specifically to the surgical repair of a wound that has reopened, typically after an initial surgical procedure. It's important to consult the latest coding guidelines, as coding practices may evolve over time.