B66.3

ICD-10Billable

Fascioliasis

Official ICD-10-CM descriptor (FY2026)

Fascioliasis

B66.3 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Infection due to Fasciola gigantica
  • Infection due to Fasciola hepatica
  • Infection due to Fasciola indica
  • Sheep liver fluke disease

Related codes in B66

Where this code sits

Parent code
B66

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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