B66.3Billable
Fascioliasis
- Chapter
- 1. Certain infectious and parasitic diseases
- Category
- B66
- Effective date
- October 1, 2026
Related codes in category B66
Frequently asked questions
What is ICD-10 code B66.3?
B66.3 is an ICD-10-CM diagnosis code for Fascioliasis.
Is B66.3 a billable code?
Yes. B66.3 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is B66.3 in?
B66.3 falls under Chapter 1: Certain infectious and parasitic diseases.
When did B66.3 become effective?
B66.3 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to B66.3?
B66.3 belongs to category B66, which includes 8 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.