2024 ICD-10-CM Diagnosis Code Z00.121

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Encounter for routine child health examination with abnormal findings

  • Z00.121 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Encounter for routine child health exam w abnormal findings
  • The 2024 edition of ICD-10-CM Z00.121 became effective on October 1, 2023.
  • This is the American ICD-10-CM version of Z00.121 – other international versions of ICD-10 Z00.121 may differ.

ICD-10-CM Coding Rules

  • Z00.121 is applicable to pediatric patients aged 0 – 17 years inclusive.

Use Additional

  • code to identify abnormal findings

The following code(s) above Z00.121 contain annotation back-references

 that may be applicable to Z00.121:

  • Z00-Z99  Factors influencing health status and contact with health services
  • Z00-Z13  Persons encountering health services for examinations
  • Z00  Encounter for general examination without complaint, suspected or reported diagnosis
  • Z00.12  Encounter for routine child health examination

Present On Admission

  • Z00.121 is considered exempt from POA reporting.

ICD-10-CM Z00.121 is grouped within Diagnostic Related Group(s) (MS-DRG v41.0):

  • 795 Normal newborn
  • 951 Other factors influencing health status

Convert Z00.121 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

Diagnosis Index entries containing back-references to Z00.121:

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