Parastomal hernia with gangrene

This code describes a parastomal hernia that has developed gangrene. A parastomal hernia is a type of incisional hernia occurring adjacent to an ostomy site (e.g., colostomy, ileostomy), where abdominal contents protrude through the weakened abdominal wall. Gangrene indicates tissue death due to a lack of blood supply, representing a severe and life-threatening complication of the hernia.

Use this code when documentation clearly states a parastomal hernia with evidence of gangrenous changes in the herniated contents or surrounding tissue. This typically involves clinical findings such as severe pain, discoloration (black, purple, red), foul odor, and systemic signs of infection or sepsis. Surgical reports confirming gangrenous bowel or other tissue within a parastomal hernia support this diagnosis.

• Always confirm the presence of gangrene; do not assume it based on severe symptoms alone.
• Sequence this code first if it is the primary reason for the encounter, especially in emergent surgical cases.
• Code any associated complications, such as peritonitis (K65.0) or sepsis (A41.-), separately.