S92.313G Displaced fracture of first metatarsal bone, unspecified foot, subsequent encounter for fracture with delayed healing

Name of the Condition

• Displaced fracture of first metatarsal bone, unspecified foot, subsequent encounter for fracture with delayed healing
• ICD-10 Code: S92.313G

Summary

This condition describes a displaced fracture of the first metatarsal bone in an unspecified foot, where healing is delayed during a subsequent encounter. The fracture involves misalignment of bone fragments, and the "delayed healing" modifier indicates the fracture has not progressed as expected in the typical healing timeline. This is a follow-up visit for a fracture that requires ongoing monitoring or intervention due to prolonged recovery.

Causes

Direct trauma to the foot, such as a fall, sports injury, or impact, is the primary cause of the initial fracture. Delayed healing may result from factors like poor blood supply to the bone, inadequate immobilization, or underlying conditions that impair bone repair (e.g., diabetes, smoking, or nutritional deficiencies). High-energy injuries or open fractures can also increase the risk of delayed union.

Risk Factors

• Participation in high-impact activities (e.g., running, jumping)
• Conditions affecting bone health (e.g., osteoporosis, vitamin D deficiency)
• Smoking or poor circulation
• Inadequate initial treatment or immobilization
• Advanced age, which may reduce bone density and healing capacity

Symptoms

• Persistent pain at the fracture site, often worsening with activity
• Swelling or bruising that does not resolve over time
• Difficulty bearing weight on the affected foot
• Possible visible deformity if displacement remains

Diagnosis

A healthcare provider will assess the foot for tenderness, swelling, or deformity. Imaging, such as X-rays or CT scans, is used to evaluate fracture alignment and healing progress. If healing is delayed, additional tests (e.g., bone scans) may be ordered to identify underlying issues affecting recovery.

Treatment Options

• Prolonged immobilization (e.g., casting or bracing) to support healing
• Physical therapy to restore strength and mobility
• Medications to manage pain or address underlying conditions (e.g., osteoporosis)
• Surgical intervention (e.g., internal fixation) if displacement or nonunion persists
• Lifestyle modifications (e.g., smoking cessation, nutritional support) to promote healing

Prognosis and Follow-Up

Most fractures with delayed healing eventually heal with appropriate management, but recovery may take longer than typical. Follow-up visits are essential to monitor progress, adjust treatment, and address complications. Prognosis depends on the severity of the fracture, adherence to treatment, and any underlying health factors.

Complications

• Nonunion (failure of the bone to heal)
• Malunion (healing in an incorrect position)
• Chronic pain or arthritis
• Reduced mobility or gait abnormalities
• Infection (if surgical intervention is required)

Lifestyle & Prevention

• Wear supportive footwear to reduce foot stress
• Avoid high-impact activities until cleared by a provider
• Maintain a balanced diet rich in calcium and vitamin D
• Manage underlying conditions (e.g., diabetes) to support healing
• Practice fall prevention strategies to reduce injury risk

When to Seek Professional Help

Seek care if pain worsens, swelling increases, or new symptoms (e.g., numbness, discoloration) develop. Prompt evaluation is needed if the foot cannot bear weight or if signs of infection (e.g., fever, redness) occur.

Tips for Medical Coders

Use S92.313G for a displaced first metatarsal fracture with delayed healing during a subsequent encounter. Document the fracture’s displacement, the foot (unspecified), and the reason for delayed healing (e.g., clinical or radiographic evidence of slow progress). Ensure the encounter is coded as "subsequent" (not initial or acute) and that modifiers for delayed healing are appropriately applied.