Codes / ICD10CM / S56.124S

S56.124S Laceration of flexor muscle, fascia and tendon of left middle finger at forearm level, sequela

ICD10CM code

ICD10CM

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Name of the Condition

  • Laceration of flexor muscle, fascia and tendon of left middle finger at forearm level, sequela (ICD-10 Code: S56.124S)

Summary

This condition represents a sequela (late effect) of a laceration involving the flexor muscle, fascia, and tendon of the left middle finger at the forearm level. It reflects residual impairment or complications following the initial injury, such as persistent functional limitations or structural changes in the affected tissues.

Causes

The sequela arises from prior trauma that lacerated the flexor structures of the left middle finger at the forearm. This may include sharp or penetrating injuries, avulsion, or forceful trauma that disrupted the muscle, fascia, or tendon, leading to long-term consequences.

Risk Factors

  • History of forearm or finger trauma, particularly involving sharp objects or forceful impacts.
  • Delayed or inadequate initial treatment of the original laceration.
  • Pre-existing conditions affecting tissue healing (e.g., diabetes, vascular disease).

Symptoms

  • Persistent pain or discomfort at the forearm near the left middle finger.
  • Reduced ability to flex the left middle finger, with possible stiffness or contracture.
  • Swelling, scarring, or deformity at the injury site.
  • Weakness in grip or fine motor tasks involving the left middle finger.

Diagnosis

Evaluation includes a physical exam to assess finger mobility, tendon function, and residual tissue damage. Imaging (e.g., ultrasound, MRI) may be used to identify structural changes or incomplete healing. Clinical history of the original injury is critical for diagnosis.

Treatment Options

Management focuses on addressing functional limitations and complications. Options may include physical therapy to restore mobility, splinting or bracing, pain management, or surgical intervention for severe scarring or tendon adhesions.

Prognosis and Follow-Up

Prognosis depends on the extent of initial injury and response to treatment. Regular follow-up monitors recovery, functional improvement, and addresses any new symptoms. Long-term outcomes may include partial or full restoration of function, depending on tissue healing and rehabilitation adherence.

Complications

  • Chronic pain or stiffness in the left middle finger.
  • Tendon re-rupture or adhesion formation.
  • Nerve or vascular damage affecting sensation or circulation.
  • Reduced grip strength or fine motor control.

Lifestyle & Prevention

  • Avoid repetitive or forceful hand movements that strain the affected finger.
  • Use ergonomic tools or adaptive devices to support daily activities.
  • Follow prescribed therapy and activity modifications to optimize healing.
  • Maintain regular medical follow-up to address emerging issues promptly.

When to Seek Professional Help

Seek care if symptoms worsen (e.g., increased pain, swelling, or loss of function), new numbness or discoloration occurs, or if there is difficulty performing daily tasks. Prompt evaluation is important for managing complications or adjusting treatment.

Tips for Medical Coders

Document the sequela status clearly, noting the original injury and its relationship to the current condition. Ensure clinical details (e.g., residual impairment, treatment history) support the sequela designation. Verify that the code aligns with the specific finger (left middle) and anatomical level (forearm) as documented.

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