Hypertrophy of bone, left hand

This code signifies an abnormal enlargement or overgrowth of bone tissue specifically located in the left hand. This hypertrophy can affect any bone within the hand structure, leading to increased bone density or size. It is a non-neoplastic condition, often resulting from chronic stress, inflammation, or developmental anomalies.

Apply this code when documentation explicitly states "hypertrophy of bone" affecting the left hand. This diagnosis is typically supported by imaging studies such as X-rays, CT scans, or MRI, which demonstrate increased bone mass or size. Clinical notes should describe the location as the left hand and confirm the nature of the bone change as hypertrophy.

• Ensure the laterality (left hand) is clearly documented; do not assume.
• Differentiate from bone spurs (osteophytes) or exostoses, which have distinct codes.
• Look for underlying causes, such as osteomyelitis or Paget's disease, which may require additional coding.