1. ICD-10-CM Codes
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2. A00-B99
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3. B65-B83
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4. B81-
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5. 2023 ICD-10-CM Diagnosis Code B81.2

2023 ICD-10-CM Diagnosis Code B81.2

Trichostrongyliasis

2016 2017 2018 2019 2020 2021 2022 2023 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 2023 edition of ICD-10-CM B81.2 became effective on October 1, 2022.
• This is the American ICD-10-CM version of B81.2 - other international versions of ICD-10 B81.2 may differ.

• 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.

• 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

• 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
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change

• Type 1 Excludes: B78
  ICD-10-CM Diagnosis Code B78

  Strongyloidiasis

  2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code

  Type 1 Excludes

  • trichostrongyliasis (B81.2)

• Infection, infected, infective (opportunistic) B99.9
  ICD-10-CM Diagnosis Code B99.9

  Unspecified infectious disease

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • Trichostrongylus B81.2
• Infestation B88.9
  ICD-10-CM Diagnosis Code B88.9

  Infestation, unspecified

  2016 2017 2018 2019 2020 2021 2022 2023 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 2021 2022 2023 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 2021 2022 2023 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 2021 2022 2023 Billable/Specific Code
    • trichostrongylus B81.2
  • Trichostrongylus B81.2
• Trichostrongyliasis, trichostrongylosis B81.2 (small intestine)
• Trichostrongylus infection B81.2

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