Codes / ICD10CM / S46.921

S46.921 Laceration of unspecified muscle, fascia and tendon at shoulder and upper arm level, right arm

ICD10CM code

ICD10CM

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Name of the Condition

  • Laceration of unspecified muscle, fascia and tendon at shoulder and upper arm level, right arm.

Summary

This condition involves a cut or tear of muscles, fascia, and tendons in the shoulder and upper arm region of the right arm, where the specific structures affected are not identified. It may result from trauma or injury and can impact movement and function.

Causes

Causes include acute injuries such as falls, direct blows, or sudden forceful movements. Repetitive strain from activities like lifting or overhead work may also contribute.

Risk Factors

  • Participation in contact sports or physically demanding occupations
  • Poor muscle conditioning or imbalances
  • Previous shoulder or arm injuries
  • Advancing age, as tissue elasticity decreases

Symptoms

  • Pain or tenderness in the shoulder or upper arm
  • Swelling and bruising over the affected area
  • Limited range of motion
  • Weakness or fatigue in the arm

Diagnosis

Diagnosis typically involves a physical examination to assess function and tenderness. Imaging tests like MRI or ultrasound may be used to evaluate soft tissue damage, though the unspecified nature of the injury may limit detailed structural identification.

Treatment Options

  • Rest and activity modification to prevent further injury
  • Ice and compression to reduce swelling
  • Physical therapy to restore mobility and strength
  • Pain management as needed

Prognosis and Follow-Up

Recovery depends on the injury severity and treatment adherence. Most patients improve with appropriate care, but follow-up may be needed to monitor healing and prevent complications.

Complications

  • Infection at the injury site
  • Chronic pain or reduced mobility
  • Nerve or vascular damage
  • Delayed healing or scar tissue formation

Lifestyle & Prevention

  • Use proper lifting techniques to avoid strain
  • Warm up before physical activity
  • Maintain muscle strength and flexibility
  • Wear protective gear during sports or high-risk activities

When to Seek Professional Help

Seek medical attention if pain is severe, swelling worsens, or movement is significantly limited. Prompt care can help prevent complications and support recovery.

Tips for Medical Coders

Document the location (right arm) and nature of the injury (laceration) clearly. Ensure clinical notes specify the affected region and absence of identified structures to support the unspecified code.

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