M65.07 Abscess of tendon sheath, ankle and foot

Name of the Condition

• Abscess of tendon sheath, ankle and foot

Summary

Abscess of the tendon sheath in the ankle and foot is a localized infection characterized by pus accumulation within the protective sheath surrounding tendons in this region. This condition can cause pain, swelling, and impaired movement if not treated promptly.

Causes

Bacterial infections are the primary cause, often resulting from trauma, puncture wounds, or the spread of infection from other body areas. Less commonly, it may arise from systemic infections or direct inoculation of bacteria into the tendon sheath.

Risk Factors

• Recent injuries or penetrative wounds to the ankle or foot
• Pre-existing conditions like diabetes or immune deficiencies
• Poor wound hygiene, especially after minor injuries
• Occupational or recreational activities involving repetitive ankle or foot use

Symptoms

• Swelling and redness around the affected tendon sheath
• Pain or tenderness, particularly with movement
• Warmth in the affected area
• Possible fever or chills indicating systemic infection
• Limited range of motion in the ankle or foot

Diagnosis

Diagnosis involves a physical examination to assess tenderness, swelling, and movement limitations. Blood tests may identify infectious agents, and imaging studies like MRI or ultrasound can confirm abscess presence.

Treatment Options

• Antibiotic therapy to address bacterial infection
• Surgical intervention may be necessary to drain the abscess

Prognosis and Follow-Up

With timely treatment, most cases resolve without long-term issues. Follow-up care ensures infection resolution and monitors for recurrence.

Complications

• Spread of infection to surrounding tissues or bones
• Chronic pain or stiffness in the affected area
• Reduced mobility or function in the ankle or foot

Lifestyle & Prevention

• Clean and properly care for any wounds to the ankle or foot
• Manage underlying conditions like diabetes to reduce infection risk
• Avoid activities that increase injury risk to the ankle or foot

When to Seek Professional Help

Seek medical attention if you experience persistent pain, swelling, redness, or fever in the ankle or foot, as these may indicate an abscess or infection.

Tips for Medical Coders

Document the specific location (ankle and foot) and confirm the presence of a tendon sheath abscess. Ensure clinical notes support the diagnosis and treatment provided.