Tungiasis [sandflea infestation]

This code represents an infestation of the skin by the female sand flea, Tunga penetrans, which burrows into the epidermis, typically of the feet. The embedded flea causes localized inflammation, itching, and pain, often leading to secondary bacterial infections or ulceration.

Apply this code when documentation confirms a diagnosis of tungiasis, characterized by the presence of embedded sand fleas or their sequelae. This is commonly seen in patients who have traveled to or reside in endemic tropical and subtropical regions. Documentation should describe the characteristic lesions or the identification of the parasite.

• Ensure documentation clearly distinguishes tungiasis from other parasitic skin infestations.
• Code any secondary bacterial infections or complications (e.g., cellulitis, abscess) separately.
• Consider Z20.828 (Contact with and (suspected) exposure to other parasitic diseases) if exposure is suspected but infestation is not confirmed.