Immersion foot, right foot, sequela

This code signifies the long-term or residual effects of immersion foot (also known as trench foot) affecting the right foot. Immersion foot is a non-freezing cold injury resulting from prolonged exposure to cold and wet conditions, leading to nerve damage, tissue maceration, and circulatory impairment. Sequelae can include chronic pain, numbness, hypersensitivity, skin changes, and impaired circulation.

Use this code when documenting a patient presenting with persistent symptoms or complications in their right foot directly attributable to a past episode of immersion foot. This applies to follow-up visits where the acute injury has resolved, but the patient continues to experience chronic issues. It should be used when the sequela is the primary reason for the encounter.

• Always link this sequela code with an external cause code (V00-Y99) if the original cause of the immersion foot is known and relevant to the current encounter.
• Do not use this code for acute or active immersion foot; instead, use the appropriate acute immersion foot code.
• Ensure documentation clearly specifies "right foot" and indicates the chronic nature or residual effects of the condition.