Hernia of other specified sites, with gangrene

This code signifies a hernia occurring in an anatomical location other than those specifically categorized (e.g., inguinal, femoral, umbilical), where the herniated tissue has developed gangrene. Gangrene indicates tissue death due to a lack of blood supply, representing a severe complication of the hernia. This condition typically presents as an acute, life-threatening surgical emergency.

Use this code when documentation clearly states a hernia at an "other specified site" (e.g., lumbar, obturator, spigelian, incisional not otherwise specified) and explicitly mentions the presence of gangrene. This diagnosis requires definitive clinical findings of tissue necrosis within the herniated contents, often confirmed during surgical exploration.

• Ensure the documentation specifies a hernia site not covered by more specific ICD-9 hernia codes (e.g., 550.x, 552.x, 553.x).
• Always look for explicit mention of "gangrene," "necrosis," or "infarction" of the herniated tissue; "incarcerated" or "strangulated" alone are insufficient without evidence of tissue death.
• This code should be sequenced as the primary diagnosis when the gangrenous hernia is the reason for the encounter and surgical intervention.