S92.356S Nondisplaced fracture of fifth metatarsal bone, unspecified foot, sequela

Name of the Condition

• Technical Term: Nondisplaced fracture of fifth metatarsal bone, unspecified foot, sequela
• ICD-10 Code: S92.356S
• Common Name: Broken fifth metatarsal (unspecified foot, sequela)

Summary

A nondisplaced fracture of the fifth metatarsal bone in the unspecified foot, sequela, refers to a healed or healing fracture where residual effects persist after the acute phase. The bone fragments remained in normal alignment during the initial injury, and this code applies to complications or ongoing symptoms following the fracture. Sequela may include chronic pain, limited mobility, or other long-term consequences of the prior injury.

Causes

The sequela arises from a prior nondisplaced fracture of the fifth metatarsal bone, typically caused by direct trauma (e.g., falls, twists) or repetitive stress (e.g., sports, overuse). The residual effects are a direct result of the initial injury and its healing process.

Risk Factors

• Prior foot injuries or fractures
• Inadequate initial treatment or healing
• Underlying conditions affecting bone health (e.g., osteoporosis)
• High-impact activities or occupations
• Advanced age, which may slow recovery

Symptoms

• Chronic pain or discomfort in the outer foot
• Reduced range of motion or stiffness
• Difficulty bearing weight or walking
• Mild swelling or tenderness at the fracture site
• Possible deformity or altered gait

Diagnosis

Diagnosis involves reviewing the patient’s medical history, including the initial fracture and its treatment. Physical examination assesses residual symptoms, and imaging (e.g., X-rays) may confirm healing status or identify ongoing issues. The sequela is distinguished from active fractures by the absence of acute injury signs.

Treatment Options

Treatment focuses on managing residual symptoms and may include physical therapy to improve strength and mobility, pain management, orthotic devices for support, or activity modification. Surgical intervention is rare unless complications (e.g., nonunion) arise.

Prognosis and Follow-Up

Prognosis depends on the severity of residual effects and adherence to treatment. Most patients experience gradual improvement with conservative measures, but some may have persistent limitations. Regular follow-up ensures symptoms are monitored and treatment adjusted as needed.

Complications

• Chronic pain or arthritis at the fracture site
• Reduced mobility or functional impairment
• Delayed union or nonunion of the bone
• Nerve or tissue damage from the initial injury

Lifestyle & Prevention

• Wear supportive footwear to reduce stress on the foot
• Avoid high-impact activities that exacerbate symptoms
• Engage in low-impact exercises (e.g., swimming) to maintain fitness
• Maintain bone health through proper nutrition and exercise
• Use protective gear during activities with fall risks

When to Seek Professional Help

Seek care if residual symptoms worsen, new pain or swelling occurs, or mobility significantly declines. Prompt evaluation is necessary to rule out complications like infection or nonunion.

Tips for Medical Coders

Use S92.356S for nondisplaced fifth metatarsal fractures in the unspecified foot with residual effects after the acute phase. Document the sequela clearly, including the relationship to the prior fracture and any ongoing symptoms or complications. Ensure the code aligns with the patient’s current clinical status and treatment plan.