S92.326 Nondisplaced fracture of second metatarsal bone, unspecified foot

Name of the Condition

• Technical Term: Nondisplaced fracture of second metatarsal bone, unspecified foot
• ICD-10 Code: S92.326
• Common Name: Broken second metatarsal (unspecified foot)

Summary

A nondisplaced fracture of the second metatarsal bone in an unspecified foot is a break in the long bone of the midfoot where the bone fragments remain aligned. This injury typically results from trauma, such as a direct impact or twisting force, and may cause pain and limited mobility. The second metatarsal is a weight-bearing bone, making it susceptible to injury during activities that stress the foot. Treatment focuses on stabilizing the bone and allowing healing, with outcomes generally favorable when managed appropriately.

Causes

Direct trauma to the foot, such as a fall, sports injury, or dropping a heavy object, is the most common cause. Repetitive stress from activities like running or jumping can also lead to stress fractures over time. Twisting the foot or sudden impact may result in a fracture, particularly in high-impact scenarios.

Risk Factors

• Participation in high-impact sports (e.g., basketball, soccer)
• Wearing improper or non-supportive footwear
• Conditions that weaken bones, such as osteoporosis
• Advanced age, which may reduce bone density and balance
• Previous foot injuries or fractures

Symptoms

• Pain and tenderness in the midfoot area, specifically over the second metatarsal
• Swelling and bruising around the affected bone
• Difficulty bearing weight or walking on the injured foot
• Possible mild deformity if the fracture is severe

Diagnosis

Diagnosis typically involves a physical examination to assess pain, swelling, and tenderness. Imaging studies, such as X-rays, are used to confirm the fracture and determine if it is displaced. Additional tests, like CT scans or MRIs, may be ordered if soft tissue damage or more detailed bone structure assessment is needed.

Treatment Options

Treatment often includes immobilization with a cast or walking boot to stabilize the bone and promote healing. Pain management with over-the-counter or prescription medications may be recommended. Physical therapy is sometimes used to restore strength and mobility once the fracture has healed. Severe cases may require surgical intervention, though this is less common for nondisplaced fractures.

Prognosis and Follow-Up

Prognosis is generally good for nondisplaced fractures, with most patients recovering fully within 6–8 weeks. Follow-up appointments may be scheduled to monitor healing through repeat imaging. Gradual return to weight-bearing activities is typically advised as pain subsides and mobility improves.

Complications

Potential complications include delayed healing, nonunion (failure to heal), or malunion (improper healing). In rare cases, infection or nerve damage may occur, particularly if surgery is required. Chronic pain or arthritis in the midfoot may develop if the fracture is not properly managed.

Lifestyle & Prevention

Wearing supportive footwear and using proper technique during physical activities can reduce risk. Avoiding repetitive high-impact stress and maintaining bone health through diet and exercise may also help prevent fractures. Prompt treatment of minor foot injuries can prevent progression to more severe damage.

When to Seek Professional Help

Seek medical attention if pain is severe, swelling worsens, or weight-bearing becomes impossible. Signs of infection, such as redness, warmth, or fever, also warrant immediate evaluation. Persistent pain or difficulty walking after initial treatment should be discussed with a healthcare provider.

Tips for Medical Coders

When coding S92.326, ensure documentation specifies a nondisplaced fracture of the second metatarsal bone in an unspecified foot. Verify that the injury is not displaced or associated with other foot injuries, as this may affect code assignment. Include details about the mechanism of injury and any imaging results to support the diagnosis.