ICD-10 Code B88.09 – Other acariasis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B88.09 – Other acariasis
What it is
B88.09 identifies other acariasis, meaning infestation or illness caused by mites or related acari not classified elsewhere. Use it when the record documents a mite-related condition but not a more specific ICD-10 code.
Clinical signs
Clinical features vary; refer to documentation. Commonly noted findings may include itching, skin irritation, papules, or evidence of mite infestation on examination.
When to use this code
Use this code when the clinician documents acariasis and the type of mite infestation is not specified further. It is also appropriate when the chart describes a mite-related disorder that does not fit a more specific category. Check documentation if the note suggests a different parasitic condition.
Do not use for
Do not use B88.09 if the record identifies a more specific acariasis code or a non-mite parasitic infestation. Do not assign it for nonspecific pruritus or dermatitis without documentation of acariasis.
Coding tip
Confirm that the provider documents mite infestation or acariasis before coding, and code the most specific documented diagnosis available.