Chronic venous hypertension w ulcer of unsp low extrm

This code signifies a persistent elevation of venous pressure in the lower extremities, not due to an identifiable underlying cause, which has led to the development of an open sore or lesion on an unspecified part of the leg or foot. This condition is characterized by impaired venous return, causing blood to pool and damage the surrounding tissues, ultimately resulting in ulcer formation.

Apply this code when documentation clearly indicates chronic venous hypertension of idiopathic origin, accompanied by an ulcer on a lower extremity where the specific laterality (left or right) is not documented. Supporting documentation should detail the presence of a venous ulcer and rule out secondary causes of venous hypertension.

• Ensure documentation specifies "idiopathic" or "primary" venous hypertension to differentiate from secondary causes.
• If laterality of the ulcer is specified (e.g., left or right lower extremity), a more specific code from the I87.31- series should be used.
• Code any associated infections of the ulcer separately, following the sequencing guidelines for complications.