Codes / ICD10CM / M65.842

M65.842 Other synovitis and tenosynovitis, left hand

ICD10CM code

ICD10CM

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Name of the Condition

  • Other synovitis and tenosynovitis, left hand
  • Synovitis and tenosynovitis are terms used for inflammation of the synovial membrane and tendon sheaths, respectively.

Summary

Synovitis and tenosynovitis refer to inflammation around the joint or tendon of the left hand, causing pain and swelling. This condition may limit hand movement and could be due to overuse, injury, or underlying health issues.

Causes

Overuse or repetitive motion. Trauma or injury to the hand. Inflammatory diseases (e.g., rheumatoid arthritis) Infections. Metabolic disorders such as gout.

Risk Factors

  • Engaging in occupations or activities that involve repetitive hand movements
  • Participation in sports or hobbies with high hand usage
  • Existing inflammatory or degenerative joint conditions
  • Aging, which may increase susceptibility to joint issues

Symptoms

  • Pain and tenderness around the affected joints or tendons
  • Swelling in the hand, particularly near joints
  • Warmth and redness over the affected area
  • Stiffness or limited movement in the hand

Diagnosis

Diagnosis is typically made through physical examination, patient history, and imaging tests like MRI or ultrasound to assess inflammation or any structural issues.

Treatment Options

  • Treatments include rest and avoidance of activities exacerbating symptoms, application of ice to reduce swelling, nonsteroidal anti-inflammatory drugs (NSAIDs) to relieve pain, corticosteroid injections for severe inflammation, and physical therapy to improve mobility.

Prognosis and Follow-Up

Most cases resolve with appropriate treatment, but recovery time varies. Follow-up may involve monitoring for recurrence or complications, especially if underlying conditions are present.

Complications

  • Chronic pain or stiffness
  • Reduced hand function
  • Tendon rupture (rare)
  • Spread of infection (if present)

Lifestyle & Prevention

  • Avoid repetitive hand movements or take frequent breaks
  • Use ergonomic tools or techniques during activities
  • Maintain joint health through regular exercise and a balanced diet
  • Protect the hand from injury during sports or work

When to Seek Professional Help

Seek care if symptoms worsen, persist beyond a few days, or interfere with daily activities. Immediate attention is needed for severe pain, fever, or signs of infection.

Tips for Medical Coders

Document the specific site (left hand) and any contributing factors (e.g., trauma, overuse, or underlying conditions) to support code assignment. Ensure clinical correlation with symptoms and diagnostic findings.

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