S62.242 Displaced fracture of shaft of first metacarpal bone, left hand

Name of the Condition

• Displaced fracture of shaft of first metacarpal bone, left hand

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. Displacement means the broken pieces are no longer aligned properly. The severity and treatment depend on the extent of displacement and associated injuries.

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 area and allow healing.
• Reduction: Manual or surgical realignment of displaced bone fragments if necessary.
• Pain management: Medications to reduce discomfort and inflammation.
• Rehabilitation: Physical therapy 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 imaging may be needed to confirm alignment and healing. Full recovery of function is common, but stiffness or weakness may persist in some cases.

Complications

• Malunion or nonunion of the fracture.
• Chronic pain or arthritis in the joint.
• Nerve or tendon damage affecting thumb movement.
• Infection (if surgery is required).

Lifestyle & Prevention

• Use protective gear during high-risk activities (e.g., sports).
• Maintain bone health through diet and exercise to reduce fracture risk.
• Avoid falls by improving balance and home safety measures.

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 side (left hand), displacement status, and any associated injuries. Ensure clinical notes specify the fracture type and treatment provided to support accurate coding.