2025 ICD-10-CM Diagnosis Code Z11.6

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Encounter for screening for other protozoal diseases and helminthiases

  • Z11.6 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Encntr screen for oth protozoal diseases and helminthiases
  • The 2025 edition of ICD-10-CM Z11.6 became effective on October 1, 2024.
  • This is the American ICD-10-CM version of Z11.6 – other international versions of ICD-10 Z11.6 may differ.

Type 2 Excludes

  • encounter for screening for protozoal intestinal disease (Z11.0)

The following code(s) above Z11.6 contain annotation back-references

 that may be applicable to Z11.6:

  • Z00-Z99  Factors influencing health status and contact with health services
  • Z00-Z13  Persons encountering health services for examinations
  • Z11  Encounter for screening for infectious and parasitic diseases

Approximate Synonyms

  • Screening for intestinal worms
  • Screening for intestinal worms done

Present On Admission

  • Z11.6 is considered exempt from POA reporting.

ICD-10-CM Z11.6 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

  • 951 Other factors influencing health status

Convert Z11.6 to ICD-9-CMCode 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
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change
  • 2024 (effective 10/1/2023): No change
  • 2025 (effective 10/1/2024): No change

Diagnosis Index entries containing back-references to Z11.6:

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