ICD-10-CM B66: Other fluke infections

ICD-10-CM Diagnosis Code (2025)

Official Description for B66

Other fluke infections

Coding Notes & Guidelines for B66

Inclusion Terms
  • Infection due to cat liver fluke
  • Infection due to Opisthorchis (felineus)(viverrini)
Inclusion Terms
  • Chinese liver fluke disease
  • Infection due to Clonorchis sinensis
  • Oriental liver fluke disease
Inclusion Terms
  • Infection due to Dicrocoelium dendriticum
  • Lancet fluke infection
Inclusion Terms
  • Infection due to Fasciola gigantica
  • Infection due to Fasciola hepatica
  • Infection due to Fasciola indica
  • Sheep liver fluke disease
Inclusion Terms
  • Infection due to Paragonimus species
  • Lung fluke disease
  • Pulmonary distomiasis
Inclusion Terms
  • Infection due to Fasciolopsis buski
  • Intestinal distomiasis
Inclusion Terms
  • Echinostomiasis
  • Heterophyiasis
  • Metagonimiasis
  • Nanophyetiasis
  • Watsoniasis

Child Codes (More Specific Codes for B66):

B66.0 - Opisthorchiasis B66.1 - Clonorchiasis B66.2 - Dicroceliasis B66.3 - Fascioliasis B66.4 - Paragonimiasis B66.5 - Fasciolopsiasis B66.8 - Other specified fluke infections B66.9 - Fluke infection, unspecified

About ICD-10-CM Code B66 (Other fluke infections)

ICD-10-CM code B66 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM B66 became effective on October 1, 2024.

This page provides detailed information about B66 - Other fluke infections. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other fluke infections.