Pararenal abdominal aortic aneurysm, ruptured

This code signifies a life-threatening condition where the wall of the abdominal aorta, specifically in the pararenal segment (adjacent to the kidneys), has torn open, leading to internal bleeding. This rupture is a critical medical emergency requiring immediate intervention.

Apply this code when documentation clearly indicates a ruptured abdominal aortic aneurysm located in the pararenal region. This diagnosis is typically made based on imaging studies (e.g., CT scan) showing extravasation of contrast or retroperitoneal hemorrhage in the context of an aneurysm, often accompanied by signs of hypovolemic shock.

• Ensure documentation specifies "ruptured" and the "pararenal" location; otherwise, an unruptured or unspecified location code may be more appropriate.
• Always sequence this code as the principal diagnosis when it is the primary reason for the encounter and treatment.
• Distinguish carefully from juxtarenal or infrarenal aneurysms; the specific anatomical location is crucial for accurate coding.