S62.242A Displaced fracture of shaft of first metacarpal bone, left hand, initial encounter for closed fracture

Name of the Condition

• Displaced fracture of shaft of first metacarpal bone, left hand, initial encounter for closed fracture

Summary

This condition involves a break in the shaft (midportion) of the first metacarpal bone, which connects the thumb to the wrist, with displacement of the bone fragments. The fracture is closed (skin intact) and occurs during the initial encounter for treatment. Displacement means the bone fragments are not aligned properly, which may affect healing and function.

Causes

Typically caused by direct trauma, such as a fall onto an outstretched hand, a blow to the thumb or hand, or a crushing injury. High-impact activities or accidents may also lead to fractures in this area.

Risk Factors

• Participation in contact sports or activities with a high risk of falls.
• Osteoporosis or weakened bone structure, especially in older adults.
• Previous hand or thumb injuries that may have compromised bone integrity.

Symptoms

• Pain, swelling, and tenderness in the thumb or base of the hand.
• Bruising or discoloration around the injury site.
• Limited range of motion or difficulty moving the thumb.
• Visible deformity in severe cases.

Diagnosis

Physical examination to assess pain, swelling, and mobility. Imaging tests, such as X-rays, CT scans, or MRIs, to confirm the fracture and evaluate its extent, including displacement and alignment of bone fragments.

Treatment Options

• Immobilization: Using a cast, splint, or brace to stabilize the fracture and allow healing.
• Reduction: Manual or surgical realignment of displaced bone fragments if necessary.
• Pain management: Medications to reduce discomfort and inflammation.
• Physical therapy: Rehabilitation exercises to restore strength and mobility after healing.

Prognosis and Follow-Up

Most fractures heal within 6–8 weeks with proper immobilization and care. Follow-up appointments monitor healing progress, and physical therapy may be recommended to restore full function. Complications are rare but may include stiffness or reduced grip strength.

Complications

• Stiffness or limited range of motion in the thumb or hand.
• Chronic pain or discomfort.
• Malunion (improper healing) if displacement is severe or untreated.
• Nerve or tendon damage in rare cases.

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., sports).
• Maintain bone health through adequate calcium and vitamin D intake.
• Avoid falls by using assistive devices if balance is impaired.

When to Seek Professional Help

Seek immediate care for severe pain, visible deformity, inability to move the thumb, or signs of infection (e.g., redness, fever).

Tips for Medical Coders

Document the fracture as displaced, specify the left hand, and confirm it is a closed fracture during the initial encounter. Include details on alignment, treatment provided, and any reduction procedures to support accurate coding.