Compression of brain

This code signifies a condition where external pressure is exerted on the brain, leading to neurological dysfunction. This compression can result from various etiologies, including hemorrhage, edema, tumors, or foreign bodies, and can compromise cerebral blood flow and neuronal function.

Apply this code when documentation explicitly states "compression of brain" or describes symptoms and findings consistent with increased intracranial pressure directly impacting brain tissue. This includes cases of epidural hematoma, subdural hematoma, or intracerebral hemorrhage causing mass effect on the brain.

• Differentiate from cerebral edema (348.5) unless the edema is explicitly causing compression.
• Always code the underlying cause of the compression first, if known (e.g., specific type of hemorrhage, tumor).
• Ensure documentation clearly links the compression to the brain, not just general intracranial pressure.