S35.318S
ICD-10-CMThis code signifies a long-term complication or late effect resulting from a previously sustained injury to the portal vein, excluding thrombosis. These sequelae can manifest as chronic portal hypertension, strictures, or other persistent functional impairments directly attributable to the initial trauma.
Apply this code when documenting a patient presenting with a current condition that is a direct consequence of an old, resolved injury to the portal vein. This is appropriate for follow-up encounters where the acute injury has healed but its lasting impact is being addressed.
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