Codes / ICD10CM / M1A.4120

M1A.4120 Other secondary chronic gout, left shoulder, without tophus (tophi)

ICD10CM code

ICD10CM

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Name of the Condition

  • Other Secondary Chronic Gout, Left Shoulder, Without Tophus (Tophi)

Summary

Other secondary chronic gout, left shoulder, without tophus is a form of arthritis affecting the left shoulder joint, resulting from elevated uric acid levels due to an identifiable underlying condition or cause. It leads to recurrent joint inflammation and potential tissue damage, with symptoms that may persist over time. Unlike cases with tophi, this condition does not involve visible urate crystal deposits in the left shoulder area.

Causes

Other secondary chronic gout, left shoulder, without tophus arises from an underlying condition that disrupts uric acid metabolism, causing accumulation in the blood. This can stem from overproduction of uric acid or reduced renal clearance due to factors like chronic kidney disease, certain medications, or hematologic disorders. Over time, urate crystals deposit in the left shoulder joint and surrounding tissues, triggering inflammation without forming tophi.

Risk Factors

  • Underlying conditions that affect uric acid metabolism (e.g., certain hematologic disorders, enzyme deficiencies)
  • Medications that increase uric acid levels (e.g., some diuretics, chemotherapy agents)
  • Chronic kidney disease or renal impairment
  • History of gout or hyperuricemia
  • Exposure to substances that disrupt uric acid excretion

Symptoms

  • Recurrent episodes of intense left shoulder pain, often with swelling and redness
  • Persistent warmth and tenderness in the affected joint
  • Stiffness and limited shoulder mobility
  • Flare-ups triggered by stress, diet, or illness

Diagnosis

Diagnosis involves a combination of clinical evaluation, patient history, and laboratory tests. A healthcare provider may assess joint symptoms, review medical history for underlying conditions or medications, and order blood tests to measure uric acid levels. Imaging studies like X-rays or ultrasound may be used to evaluate joint damage or rule out other conditions. Synovial fluid analysis can confirm the presence of urate crystals, though tophi are absent in this specific code.

Treatment Options

Treatment focuses on managing symptoms, reducing uric acid levels, and addressing the underlying cause. Nonsteroidal anti-inflammatory drugs (NSAIDs) or corticosteroids may alleviate pain and inflammation during flare-ups. Long-term management may include medications to lower uric acid production or increase excretion. Physical therapy can help maintain joint function and mobility.

Prognosis and Follow-Up

Prognosis depends on the underlying cause and adherence to treatment. With proper management, symptoms can be controlled, and joint damage may be minimized. Regular follow-up is important to monitor uric acid levels, adjust medications, and address any complications. Untreated or poorly managed cases may lead to progressive joint damage.

Complications

  • Chronic joint damage or deformity in the left shoulder
  • Persistent pain and reduced mobility
  • Increased risk of future gout flares
  • Potential impact on daily activities and quality of life

Lifestyle & Prevention

  • Maintain a balanced diet low in purines (e.g., limit red meat, seafood, and alcohol)
  • Stay hydrated to support uric acid excretion
  • Avoid medications that may elevate uric acid levels unless necessary
  • Manage underlying conditions (e.g., kidney disease) as directed by a healthcare provider
  • Engage in regular, low-impact exercise to support joint health

When to Seek Professional Help

Seek medical attention if you experience severe or persistent left shoulder pain, swelling, or stiffness, especially if symptoms worsen or interfere with daily activities. Prompt evaluation is important to prevent joint damage and manage flare-ups effectively.

Tips for Medical Coders

This code specifies "other secondary chronic gout" affecting the left shoulder without tophi. Ensure documentation supports the absence of tophus and confirms the left shoulder as the affected site. Verify that the underlying cause of secondary gout is documented, as this distinguishes it from primary gout. Code accurately based on clinical findings and avoid assumptions about tophi presence or joint involvement.

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