Codes / ICD10CM / S90.31

S90.31 Contusion of right foot

ICD10CM code

ICD10CM

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Name of the Condition

  • Contusion of right foot

Summary

A contusion of the right foot is a bruise resulting from blunt force trauma that damages underlying soft tissues without breaking the skin. It involves localized injury to the right foot region, typically causing pain, swelling, and discoloration.

Causes

Direct impact or trauma to the right foot, such as a fall, collision, or forceful contact with a hard object. Sudden twisting or bending of the right foot during physical activity. Blunt force from objects striking the right foot area.

Risk Factors

  • Participation in sports or activities with high foot injury risk (e.g., running, jumping, contact sports).
  • Wearing improper footwear or inadequate support.
  • Pre-existing foot instability or previous injuries.
  • Occupations or environments where foot injuries are more likely (e.g., construction, retail).

Symptoms

  • Pain and tenderness in the affected area.
  • Swelling and bruising (discoloration) of the skin.
  • Limited range of motion or difficulty bearing weight.

Diagnosis

Physical examination to assess tenderness, swelling, and discoloration. Review of the patient’s history to determine the mechanism of injury. Imaging (e.g., X-rays) may be used to rule out fractures or other injuries.

Treatment Options

  • Rest and elevation to reduce swelling.
  • Ice application to alleviate pain and inflammation.
  • Compression with bandages or braces for support.
  • Pain relief medications if needed.

Prognosis and Follow-Up

Most contusions of the right foot heal within 1–2 weeks with proper care. Follow-up may be recommended if symptoms worsen or persist, to ensure no underlying issues (e.g., fractures) are present. Gradual return to activity is advised as pain subsides.

Complications

  • Prolonged pain or swelling if not properly managed.
  • Risk of secondary injury during recovery.
  • Rarely, compartment syndrome or infection if severe trauma occurs.

Lifestyle & Prevention

  • Wear supportive, properly fitted footwear.
  • Use protective gear during high-risk activities.
  • Maintain balance and strength to reduce fall risk.
  • Warm up before physical activity to prepare muscles and joints.

When to Seek Professional Help

Seek care if pain is severe, swelling worsens, or weight-bearing is impossible. Also, consult a provider if discoloration spreads, or if there are signs of infection (e.g., redness, fever).

Tips for Medical Coders

Document the specific location (right foot) and mechanism of injury. Ensure clinical notes support the diagnosis, as coding requires clear anatomical and injury detail. Verify no fractures or other injuries are present to avoid miscoding.

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