ICD-10 Code I83.12 – Varicose veins of left lower extremity with inflammation (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I83.12 – Varicose veins of left lower extremity with inflammation
What it is
This code identifies varicose veins in the left leg that are documented with inflammation. Use it when the provider describes dilated, twisted superficial veins on the left lower extremity with inflammatory findings.
Clinical signs
Typical findings include visible or palpable varicosities in the left leg with localized redness, tenderness, swelling, or warmth. Clinical features vary; refer to documentation.
When to use this code
Use I83.12 when the record clearly links inflammation to varicose veins of the left lower extremity. It fits office, outpatient, or inpatient documentation that specifies left-sided varicosities with inflammatory changes. If the laterality or inflammation is not stated, check documentation.
Do not use for
Do not use this code for varicose veins without inflammation, or when the condition is documented on the right leg or both legs instead. Do not assign it if the note is too vague; check documentation.
Coding tip
Confirm both laterality and the inflammatory component before coding, because missing either detail can lead to a different ICD-10-CM code.