S66.122 Laceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand level

Name of the Condition

• Laceration of flexor muscle, fascia and tendon of right middle finger at wrist and hand level
• ICD-10 Code: S66.122

Summary

This condition involves a laceration (cut or tear) of the flexor muscle, fascia, or tendon of the right middle finger at the wrist and hand level. These structures are critical for finger flexion and hand function. The injury typically results from trauma that disrupts the integrity of these tissues, potentially affecting movement and strength.

Causes

Common causes include penetrating injuries (e.g., cuts from sharp objects), direct trauma (e.g., falls or blows to the hand), or forceful movements that tear the flexor structures. The laceration may involve partial or complete disruption of the muscle, fascia, or tendon.

Risk Factors

• Participation in activities with a high risk of hand injury (e.g., manual labor, sports, or handling sharp tools).
• Lack of protective gear during high-risk tasks.
• Previous injuries to the fingers, wrist, or hand.
• Use of equipment that increases the risk of laceration.

Symptoms

• Pain, swelling, or tenderness in the affected finger or wrist.
• Visible signs of injury, such as cuts, bleeding, or deformity.
• Reduced range of motion or weakness in the finger.
• Difficulty performing tasks requiring grip or dexterity.
• Possible numbness or tingling if nerves are involved.

Diagnosis

Physical examination typically assesses the injury site, range of motion, and functional impairment. Imaging (e.g., ultrasound or MRI) may be used to evaluate tendon or muscle damage. Nerve function tests can help determine if adjacent nerves are affected.

Treatment Options

Treatment depends on the severity of the laceration. Minor injuries may be managed with wound care, immobilization, and physical therapy. Severe or complete tears often require surgical repair of the flexor structures, followed by rehabilitation to restore function.

Prognosis and Follow-Up

Prognosis varies based on injury extent and treatment. Early intervention improves outcomes. Follow-up care includes monitoring healing, assessing functional recovery, and adjusting therapy as needed. Long-term outcomes depend on the success of repair and adherence to rehabilitation.

Complications

Potential complications include infection, tendon adhesion, reduced finger mobility, chronic pain, or nerve damage. Incomplete healing or improper repair may lead to permanent functional impairment.

Lifestyle & Prevention

• Use protective gear (e.g., gloves) during high-risk activities.
• Avoid handling sharp objects carelessly.
• Maintain hand strength and flexibility through regular exercise.
• Seek prompt care for hand injuries to prevent complications.

When to Seek Professional Help

Seek immediate medical attention for deep cuts, uncontrolled bleeding, visible tendon damage, or loss of finger movement. Persistent pain, swelling, or numbness after injury also warrants evaluation.

Tips for Medical Coders

Document the specific finger (right middle), anatomical structures involved (flexor muscle, fascia, tendon), and injury location (wrist and hand level). Ensure clinical notes support the laceration and any associated trauma or treatment to justify code assignment.