2020 ICD-10-CM Diagnosis Code B81.2

Trichostrongyliasis

    2016 2017 2018 2019 2020 Billable/Specific Code
  • B81.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM B81.2 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of B81.2 - other international versions of ICD-10 B81.2 may differ.
The following code(s) above B81.2 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to B81.2:
  • A00-B99
    2020 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • 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 to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • B81
    ICD-10-CM Diagnosis Code B81

    Other intestinal helminthiases, not elsewhere classified

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • angiostrongyliasis due to:
    • Angiostrongylus cantonensis (B83.2)
    • Parastrongylus cantonensis (B83.2)
    Other intestinal helminthiases, not elsewhere classified
Clinical Information
  • Infestation with nematode worms of the genus trichostrongylus. Man and animals become infected by swallowing larvae, usually with contaminated food or drink, although the larvae may penetrate human skin.
ICD-10-CM B81.2 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 391 Esophagitis, gastroenteritis and miscellaneous digestive disorders with mcc
  • 392 Esophagitis, gastroenteritis and miscellaneous digestive disorders without mcc

Convert B81.2 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to B81.2:
  • Type 1 Excludes: B78
    ICD-10-CM Diagnosis Code B78

    Strongyloidiasis

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • trichostrongyliasis (B81.2)

Diagnosis Index entries containing back-references to B81.2:
  • Infection, infected, infective (opportunistic) B99.9
    ICD-10-CM Diagnosis Code B99.9

    Unspecified infectious disease

      2016 2017 2018 2019 2020 Billable/Specific Code
    • Trichostrongylus B81.2
  • Infestation B88.9
    ICD-10-CM Diagnosis Code B88.9

    Infestation, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Infestation (skin) NOS
    • Infestation by mites NOS
    • Skin parasites NOS
    • helminth B83.9
      ICD-10-CM Diagnosis Code B83.9

      Helminthiasis, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Worms NOS
      Type 1 Excludes
      • intestinal helminthiasis NOS (B82.0)
      • intestinal B82.0
        ICD-10-CM Diagnosis Code B82.0

        Intestinal helminthiasis, unspecified

          2016 2017 2018 2019 2020 Billable/Specific Code
        • trichostrongyliasis B81.2
    • nematode NEC (intestinal) B82.0
      ICD-10-CM Diagnosis Code B82.0

      Intestinal helminthiasis, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code
      • trichostrongylus B81.2
    • Trichostrongylus B81.2
  • Trichostrongyliasis, trichostrongylosis B81.2 (small intestine)
  • Trichostrongylus infection B81.2

ICD-10-CM Codes Adjacent To B81.2
B78 Strongyloidiasis
B78.0 Intestinal strongyloidiasis
B78.1 Cutaneous strongyloidiasis
B78.7 Disseminated strongyloidiasis
B78.9 Strongyloidiasis, unspecified
B79 Trichuriasis
B80 Enterobiasis
B81 Other intestinal helminthiases, not elsewhere classified
B81.0 Anisakiasis
B81.1 Intestinal capillariasis
B81.2 Trichostrongyliasis
B81.3 Intestinal angiostrongyliasis
B81.4 Mixed intestinal helminthiases
B81.8 Other specified intestinal helminthiases
B82 Unspecified intestinal parasitism
B82.0 Intestinal helminthiasis, unspecified
B82.9 Intestinal parasitism, unspecified
B83 Other helminthiases
B83.0 Visceral larva migrans
B83.1 Gnathostomiasis
B83.2 Angiostrongyliasis due to Parastrongylus cantonensis

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.