S85.499D Other specified injury of lesser saphenous vein at lower leg level, unspecified leg, subsequent encounter

Name of the Condition

• Other specified injury of lesser saphenous vein at lower leg level, unspecified leg, subsequent encounter

Summary

An other specified injury of the lesser saphenous vein at the lower leg level, unspecified leg, subsequent encounter, refers to a documented injury to this superficial venous structure in the lower leg during a follow-up visit. This condition typically results from prior trauma and requires evaluation to assess healing, residual venous involvement, or potential complications, such as thrombosis or persistent symptoms.

Causes

Direct trauma to the lower leg, such as from blunt force, penetrating injuries, or fractures. Surgical procedures or medical interventions in the lower leg area. Accidental or intentional injuries that disrupt venous integrity.

Risk Factors

• Participation in high-impact activities or contact sports.
• History of lower leg fractures or venous disease.
• Use of anticoagulant medications that increase bleeding risk.
• Advanced age or conditions affecting tissue integrity.

Symptoms

• Visible bleeding or hematoma at the injury site.
• Pain, swelling, or tenderness in the lower leg.
• Changes in skin color (e.g., pallor or cyanosis) due to reduced venous return.
• Weak or absent pulses in the affected limb (if arterial involvement is present).
• Numbness, tingling, or coldness in the foot or toes (if ischemia occurs).

Diagnosis

Physical examination to assess pulses, skin color, and signs of ischemia. Doppler ultrasound or angiography to evaluate blood flow and identify residual vascular damage. Review of prior imaging or clinical notes to confirm the nature of the injury and subsequent encounter context.

Treatment Options

Conservative management with compression, elevation, and activity modification. Pain management with analgesics. Anticoagulation or antiplatelet therapy if thrombosis is present. Surgical intervention for severe or persistent complications, such as vein repair or thrombectomy.

Prognosis and Follow-Up

Prognosis depends on the extent of injury and response to treatment. Most cases resolve with conservative care, but residual venous insufficiency or thrombosis may occur. Follow-up visits monitor healing, symptom resolution, and functional recovery.

Complications

Venous thrombosis or post-thrombotic syndrome. Persistent pain or swelling. Skin changes or ulceration due to venous insufficiency. Infection at the injury site.

Lifestyle & Prevention

Avoid activities that risk lower leg trauma. Use protective gear during sports or high-risk tasks. Maintain a healthy weight to reduce venous strain. Follow post-injury care instructions to promote healing.

When to Seek Professional Help

Worsening pain, swelling, or discoloration. Signs of infection, such as fever or pus. Sudden numbness, weakness, or coldness in the foot or toes. Persistent or new symptoms during follow-up.

Tips for Medical Coders

Code S85.499D is used for a subsequent encounter of an other specified injury of the lesser saphenous vein at the lower leg level, unspecified leg. Documentation must specify the injury, leg (unspecified), and subsequent encounter context. Ensure clinical notes support the nature of the injury and follow-up visit to justify code assignment.