Acrodermatitis chronica atrophicans

This code identifies a late-stage manifestation of Lyme disease, characterized by progressive skin atrophy. It presents as thin, wrinkled, and often discolored skin, typically on the extremities, resulting from chronic inflammation.

Apply this code when documentation clearly indicates a diagnosis of acrodermatitis chronica atrophicans, often in patients with a history of tick bites or Lyme disease. Supporting documentation should describe the characteristic skin changes and may include serological evidence of Borrelia infection.

• Ensure documentation specifies "chronica atrophicans" to differentiate from other forms of acrodermatitis.
• Consider sequencing this code after the underlying cause, such as Lyme disease (A69.2), if actively treated or relevant to the current encounter.
• Do not confuse with other atrophic skin conditions unless specifically diagnosed as acrodermatitis chronica atrophicans.