Codes / ICD10CM / S52.002R

S52.002R Unspecified fracture of upper end of left ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion

ICD10CM code

ICD10CM

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Name of the Condition

  • Unspecified fracture of upper end of left ulna, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with malunion
  • ICD-10 Code: S52.002R

Summary

This condition describes a fracture of the upper end of the left ulna (the inner forearm bone near the elbow) that is open (skin pierced by bone) and classified as Type IIIA, IIIB, or IIIC, with malunion (improper healing). The term "subsequent encounter" indicates this is a follow-up visit for ongoing care of the fracture. Open fractures with malunion require evaluation to address healing complications and functional recovery.

Causes

The fracture typically results from trauma to the elbow or forearm, such as falls, direct blows, or accidents. Open fractures occur when the bone pierces the skin, and malunion may develop if the fracture does not heal in proper alignment, often due to inadequate initial treatment or severe injury.

Risk Factors

  • Participation in high-impact sports or activities
  • Osteoporosis or weakened bones
  • Advanced age
  • Previous fractures or bone conditions
  • Delayed or inadequate initial fracture management

Symptoms

  • Persistent pain at the injury site
  • Visible deformity or misalignment of the arm
  • Limited range of motion in the elbow or wrist
  • Swelling or bruising around the fracture area
  • Possible signs of infection (e.g., redness, drainage) at the open wound site

Diagnosis

Diagnosis involves a physical examination to assess pain, swelling, and wound healing. Imaging tests, such as X-rays, are used to evaluate fracture alignment and malunion. Additional tests may check for infection or assess functional impairment.

Treatment Options

Treatment focuses on addressing malunion and promoting proper healing. Options may include surgical realignment (osteotomy), physical therapy to restore mobility, and monitoring for infection. Open wounds require ongoing care to prevent complications.

Prognosis and Follow-Up

Prognosis depends on the severity of malunion and tissue damage. Follow-up care is essential to monitor healing, manage pain, and restore function. Long-term outcomes may include residual stiffness or weakness, depending on the extent of the injury and treatment response.

Complications

  • Chronic pain or discomfort
  • Persistent limited range of motion
  • Increased risk of future fractures
  • Nerve or blood vessel damage
  • Infection at the open wound site

Lifestyle & Prevention

  • Avoid high-impact activities until cleared by a healthcare provider
  • Use protective gear during sports or work
  • Maintain bone health through diet and exercise
  • Follow post-treatment instructions to support healing

When to Seek Professional Help

Seek care if you experience increasing pain, swelling, or drainage from the wound, signs of infection (e.g., fever, redness), or sudden loss of function in the arm.

Tips for Medical Coders

Document the fracture type (IIIA, IIIB, or IIIC), malunion, and subsequent encounter status clearly. Ensure the open fracture classification and malunion are supported by clinical notes to justify the code.

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