Appendix A:

ICD-9 Codes Used for Surgical Site Infection Definition

Code	Definition
996.60	Infection and inflammatory reaction due to internal prosthetic device, implant, and graft.
996.67	Infection and inflammatory reaction due to other internal orthopedic device, implant, and graft.
998.30	Disruption of wound, unspecified.
998.31	Disruption of internal surgical wound (fascia, muscle).
998.32	Disruption of external surgical wound (subcutaneous/skin layer).
998.5	Postoperative infection not elsewhere classified.
998.51	Infected postoperative seroma.
998.59	Other postoperative infection.
998.6	Persistent postoperative fistula.
998.83	Non-healing surgical wound.