Codes / ICD10CM / S42.126A

S42.126A Nondisplaced fracture of acromial process, unspecified shoulder, initial encounter for closed fracture

ICD10CM code

ICD10CM

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Name of the Condition

  • Nondisplaced fracture of acromial process, unspecified shoulder, initial encounter for closed fracture

Summary

A nondisplaced fracture of the acromial process refers to a break in the bony projection at the top of the scapula (shoulder blade) where the bone fragments remain aligned. The acromial process forms part of the shoulder joint's roof and connects to the clavicle, contributing to stability. This injury typically results from trauma and is classified as closed (no skin break) and initial (first encounter for treatment).

Causes

Traumatic injury is the primary cause, often from direct blows to the shoulder, falls onto the shoulder, or forceful impacts during activities like sports or accidents. High-energy events, such as motor vehicle collisions, may also lead to this type of fracture.

Risk Factors

  • Participation in contact sports or high-impact activities.
  • Osteoporosis or other bone-weakening conditions.
  • Advanced age, which may increase susceptibility to falls.
  • Previous shoulder injuries that affect bone integrity.

Symptoms

  • Pain in the shoulder, especially with movement or pressure.
  • Swelling, bruising, or tenderness over the acromial process.
  • Limited range of motion in the shoulder joint.
  • Difficulty lifting or rotating the arm.
  • In severe cases, visible deformity or instability.

Diagnosis

Diagnosis begins with a physical examination to assess pain, swelling, and range of motion. Imaging, typically X-rays, confirms the fracture and verifies that the bone fragments are aligned (nondisplaced). Additional tests may be ordered if soft tissue damage is suspected.

Treatment Options

  • Rest and activity modification to allow healing.
  • Ice and pain management to reduce swelling and discomfort.
  • Immobilization with a sling or brace to stabilize the shoulder.
  • Physical therapy to restore strength and mobility once healing progresses.
  • Surgical intervention is rare but may be considered for severe cases or associated injuries.

Prognosis and Follow-Up

Most nondisplaced fractures heal well with conservative treatment. Recovery time varies but often ranges from 6 to 8 weeks. Follow-up appointments monitor healing and functional recovery. Long-term outcomes are generally favorable, with most patients regaining full shoulder function.

Complications

  • Delayed healing or nonunion if the fracture is not properly immobilized.
  • Post-traumatic arthritis due to joint stress.
  • Nerve or blood vessel damage from the initial injury.
  • Chronic pain or stiffness if rehabilitation is incomplete.

Lifestyle & Prevention

  • Use protective gear during contact sports or high-risk activities.
  • Maintain bone health through diet and exercise to reduce fracture risk.
  • Practice fall prevention strategies, especially for older adults.
  • Avoid repetitive overhead motions that strain the shoulder.

When to Seek Professional Help

Seek immediate care for severe pain, visible deformity, inability to move the arm, or signs of infection (e.g., fever, redness). Follow up with a healthcare provider if symptoms worsen or do not improve with initial treatment.

Tips for Medical Coders

Document the encounter as initial for a closed fracture. Specify "unspecified shoulder" if the side is not documented. Ensure the fracture is confirmed as nondisplaced, with no mention of displacement or open wound. Include details on treatment provided and any imaging results to support the diagnosis.

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