All ICD10 Codes

B66

Non-Billable
ChapterA00–B99
Rankcategory
Official Description

Other fluke infections

Use a more specific code (8 billable)
B66.0OpisthorchiasisB66.1ClonorchiasisB66.2DicroceliasisB66.3FascioliasisB66.4ParagonimiasisB66.5FasciolopsiasisB66.8Other specified fluke infectionsB66.9Fluke infection, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 1: Certain Infectious and Parasitic Diseases (A00-B99).

CH1 Parent Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • carrier or suspected carrier of infectious disease (Z22.-)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
Use Additional Code
  • code to identify resistance to antimicrobial drugs (Z16.-)

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
B65-B83Helminthiases (B65-B83)
B66Other fluke infectionsNot billable
B66.0OpisthorchiasisBillable
B66.1ClonorchiasisBillable
B66.2DicroceliasisBillable
B66.3FascioliasisBillable
B66.4ParagonimiasisBillable
B66.5FasciolopsiasisBillable
B66.8Other specified fluke infectionsBillable
B66.9Fluke infection, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to B66:

chapterCH1
Certain infectious and parasitic diseases (A00-B99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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