Other arthropod infestations

This code represents parasitic infestations caused by arthropods other than those specifically classified elsewhere (e.g., scabies, pediculosis, myiasis). It encompasses a range of conditions where insects, arachnids, or other arthropods infest the skin or hair, leading to symptoms such as itching, rash, or lesions. These infestations are typically superficial but can cause significant discomfort and secondary infections.

Use this code when documentation specifies an arthropod infestation that does not have a more specific ICD-10-CM code, such as chiggers, ticks (when not causing Lyme disease or other specific tick-borne illnesses), or mites other than Sarcoptes scabiei. The provider's notes should clearly identify the arthropod responsible or describe the infestation as "other arthropod infestation."

• Always seek more specific codes first; this is a residual category.
• Do not use this code for tick bites without infestation, or for tick-borne diseases; those have specific codes.
• Ensure documentation differentiates between an arthropod bite (e.g., insect bite, unspecified) and an actual infestation.