ICD-10 Code I83.001 – Varicose veins of unspecified lower extremity with ulcer of thigh (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I83.001 – Varicose veins of unspecified lower extremity with ulcer of thigh
What it is
This code identifies varicose veins in an unspecified lower extremity complicated by an ulcer on the thigh. Use it when the record documents both the venous disease and the location of the ulcer.
Clinical signs
Typical findings include visibly enlarged, tortuous leg veins with a chronic skin ulcer on the thigh. Clinical features vary; refer to documentation for laterality, ulcer depth, and whether inflammation or infection is present.
When to use this code
Use I83.001 when the provider documents varicose veins and specifically states an ulcer of the thigh, but does not specify right or left lower extremity. It is appropriate for outpatient, inpatient, or problem-list documentation that clearly links the ulcer to venous disease. If the side is documented, use the more specific code.
Do not use for
Do not use this code for ulcers of the calf, ankle, foot, or other sites. Do not assign it if the record does not confirm varicose veins or if the ulcer is unrelated to venous insufficiency.
Coding tip
Check laterality and ulcer location carefully, because those details often determine a more specific ICD-10-CM code.