Retroperitoneal hematoma

This code signifies an accumulation of blood within the retroperitoneal space, the anatomical area behind the peritoneum. This hematoma can result from trauma, surgical complications, or spontaneous bleeding, and its size and location can vary, impacting surrounding organs.

Assign this code when documentation clearly indicates a retroperitoneal hematoma. This is often seen following abdominal or pelvic surgery, blunt force trauma to the abdomen, or in patients on anticoagulation therapy experiencing spontaneous bleeding. Supporting documentation includes imaging reports (CT, MRI, ultrasound) confirming the hematoma's presence and location.

• Always specify the cause of the hematoma with an additional code if known (e.g., T81.0- for hemorrhage complicating a procedure, or a trauma code).
• Do not confuse with intra-abdominal hematomas (K66.1) which are within the peritoneal cavity.
• Ensure the documentation differentiates between a retroperitoneal hematoma and other retroperitoneal masses.