Cntct w & expsr to pediculosis, acariasis & oth infestations

This code signifies that a patient has had contact with or is suspected of being exposed to parasitic infestations such as lice (pediculosis), mites (acariasis like scabies), or other external parasites. It indicates a potential risk of acquiring such an infestation rather than a confirmed active infection.

Use this code when a patient presents for evaluation due to known exposure to an infested individual, or when there is a suspicion of exposure based on environmental factors or symptoms that have not yet been definitively diagnosed as an active infestation. This code is appropriate for screening or prophylactic treatment encounters following exposure.

• Do not use this code if an active infestation is confirmed; instead, code the specific infestation (e.g., B85.0 for pediculosis capitis).
• This code can be used as a primary or secondary diagnosis, depending on the reason for the encounter.
• Consider adding an additional code for any symptoms the patient may be experiencing (e.g., itching, rash) if they are not yet definitively linked to an active infestation.