Rectus sheath hematoma is an uncommon cause of acute abdominal pain. It is an accumulation of blood in the sheath of the rectus abdominis, secondary to rupture of an epigastric vessel or muscle tear. It could occur spontaneously or after trauma.
ICD-10-CM Code for Contusion of abdominal wall, initial encounter S30. 1XXA.
The rectus sheath is the durable, resilient, fibrous compartment that contains both the rectus abdominis muscle and the pyramidalis muscle. The fascial coverings of the external oblique, internal oblique, and transversus abdominis muscles comprise the rectus sheath.
Spontaneous retroperitoneal hematoma (SRH) is defined as bleeding into the retroperitoneal space without trauma or iatrogenic manipulation [1]. Rectus sheath hematoma (RSH) results from accumulation of blood within the rectus sheath.
ICD-10 Code for Nontraumatic hematoma of soft tissue- M79. 81- Codify by AAPC.
Rectus sheath hematomas (RSHs) are generally caused either by rupture of one of the epigastric arteries or by a muscular tear with shearing of a small vessel.
The rectus sheath is a tendon sheath (aponeurosis) which encloses the rectus abdominis and pyramidalis muscles. It is an extension of the tendons of the external abdominal oblique, internal abdominal oblique, and transversus abdominis muscles.
The rectus sheath encloses the rectus abdominis and pyramidalis muscles and forms an important component of the anterior abdominal wall.
In opening the abdomen, the peritoneum is incorporated in the lower abdomen with the transversalis fascia. Above the arcuate line, the posterior rectus sheath also lies under the rectus abdominus muscles, and these structures are incised along with what is clinically referred to as the peritoneum.
The area in the back of the abdomen behind the peritoneum (the tissue that lines the abdominal wall and covers most of the organs in the abdomen). The organs in the retroperitoneum include the adrenal glands, aorta, kidneys, esophagus, ureters, pancreas, rectum, and parts of the stomach and colon.
The retroperitoneal space contains the kidneys, adrenal glands, pancreas, nerve roots, lymph nodes, abdominal aorta, and inferior vena cava.
An abdominal hematoma can be intrabdominal or an abdominal wall hematoma. Abdominal wall hematoma usually results from bleeding inside the muscle layers of the abdominal wall, most commonly the vascular rectus muscle. A known category of this hematoma is rectus sheath hematoma.