Pediculosis, acariasis and other infestations (B85-B89) ICD-10-CM
The B85–B89 section covers pediculosis, acariasis and other infestations with 28 ICD-10-CM diagnosis codes, of which 23 are billable in fiscal year 2027. The section is organized into the 5 code ranges listed below.
Code Ranges in This Section 5 ranges · 28 codes
| Code Range | Title | Codes | Billable |
|---|---|---|---|
| B85 | Pediculosis and phthiriasis (B85) | 6 | 5 |
| B86 | Scabies (B86) | 1 | 1 |
| B87 | Myiasis (B87) | 11 | 9 |
| B88 | Other infestations (B88) | 9 | 7 |
| B89 | Unspecified parasitic disease (B89) | 1 | 1 |
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the B85–B89 Code Range
Lice infestations, scabies and myiasis are among the conditions in this group. Scabies is contagious skin inflammation caused by a mite bite. Myiasis occurs when larvae enter living tissue.
B85 separates pediculosis, or lice infestation, by the named type of louse. It also identifies phthiriasis, or pubic lice infestation, and mixed cases. B86 is scabies. B87 divides myiasis by affected site, including skin, wounds, eyes, the nose and throat, and ears.
B88 groups other infestations, including other acariasis, sandflea infestation and other arthropod infestations. B89 is unspecified parasitic disease.
FY 2027 changes: The FY 2027 ICD-10-CM update, effective October 1, 2026, deleted B88.0.
Questions About This Page
How many codes are in the B85-B89 range?
The B85-B89 range contains 28 ICD-10-CM diagnosis codes in FY 2027. 23 of them are billable, and the rest are category headers that organize the section.
What conditions does B85-B89 cover?
The range covers pediculosis, acariasis and other infestations. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
