Hyperesthesia

This code represents an abnormal and excessive sensitivity to sensory stimuli, particularly touch, pain, or temperature. It signifies a heightened perception of sensations that would normally be perceived as mild or non-noxious.

Use this code when documentation explicitly states a diagnosis of hyperesthesia, indicating an increased sensitivity to sensory input. This diagnosis is often supported by patient complaints of exaggerated responses to touch, light pressure, or temperature changes, without evidence of nerve damage or other specific neurological conditions.

• Differentiate from paresthesia (R20.2), which describes abnormal sensations like tingling or numbness, rather than heightened sensitivity.
• Always look for the underlying cause of hyperesthesia; if a definitive cause is identified (e.g., neuropathy, inflammation), code the underlying condition first.
• Avoid using this code if the heightened sensitivity is a normal physiological response to a known painful stimulus (e.g., acute injury).