M65.02 Abscess of tendon sheath, upper arm

Name of the Condition

• Abscess of tendon sheath, upper arm

Summary

Abscess of the tendon sheath in the upper arm is a localized infection characterized by pus accumulation within the protective sheath surrounding the tendons of the upper arm. 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.

Risk Factors

• Recent injuries or penetrative wounds to the upper arm
• Pre-existing conditions like diabetes or immune deficiencies
• Poor wound hygiene, especially after minor injuries

Symptoms

• Swelling and redness around the upper arm tendon sheath
• Pain or tenderness, particularly with movement
• Warmth in the affected area
• Possible fever or chills indicating systemic infection

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 bloodstream
• Chronic pain or stiffness in the upper arm
• Tendon damage or impaired function if untreated

Lifestyle & Prevention

• Clean and care for any upper arm wounds promptly
• Manage underlying conditions like diabetes to reduce infection risk
• Avoid activities that may cause upper arm trauma without proper protection

When to Seek Professional Help

Seek medical attention if you experience persistent pain, swelling, or warmth in the upper arm, especially with fever or difficulty moving the arm.

Tips for Medical Coders

Document the specific location (upper arm) and confirm the presence of a tendon sheath abscess. Ensure clinical notes support the diagnosis and any associated procedures, such as drainage or antibiotic therapy.