External hirudiniasis

This code represents an infestation of the external surface of the body by leeches. These parasitic annelids attach to the skin and feed on blood, often causing localized bleeding, itching, and discomfort.

Use this code when documentation clearly indicates a leech infestation affecting the skin or other external body surfaces. This typically occurs after exposure to freshwater environments. Supporting documentation would include physician notes detailing the presence of leeches externally, their removal, and any associated symptoms.

• Differentiate carefully between external and internal hirudiniasis; internal infestations are coded elsewhere.
• Code any secondary infections or complications resulting from the leech bite separately.
• Ensure documentation specifies the external nature of the infestation to avoid confusion with internal parasitic conditions.