How is data on stoma formation and reversal obtained?

HES/PEDW data is used to capture whether anterior resection (AR) patients received a stoma and the type of stoma that was created in all patients. In patients having an AR or Hartmann’s procedure, information on subsequent stoma reversal was also obtained.

An OPCS procedure code for reversal of ileostomy (OPCS code G753) or colostomy (OPCS code H154) within 18-months of surgery was assumed to mean that the patient had their stoma reversed, regardless of whether the stoma was originally coded as an ileostomy or colostomy.