2024 ICD-10-CM Diagnosis Code Y64.9

Contaminated medical or biological substance administered by unspecified means

ICD-10-CM Code:
Y64.9
ICD-10 Code for:
Contaminated med/biolog sub administered by unsp means
Is Billable?
Yes - Valid for Submission
Code Navigator:

Code Classification

  • External causes of morbidity and mortality
    (V01–Y99)
    • Complications of medical and surgical care
      (Y62-Y84)
      • Contaminated medical or biological substances
        (Y64)

Y64.9 is a billable diagnosis code used to specify a medical diagnosis of contaminated medical or biological substance administered by unspecified means. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Unspecified diagnosis codes like Y64.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Contaminant given to patient
  • Serious reportable event associated with product or device
  • Transmission of infectious agent via medicinal product

Clinical Classification

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Administered contaminated medical or biological substance NOS

Index of External Cause of Injuries

References found for this diagnosis code in the External Cause of Injuries Index:

    • Misadventure(s) to patient(s) during surgical or medical care
      • contaminated medical or biological substance (blood, drug, fluid)
    • Misadventure(s) to patient(s) during surgical or medical care
      • contaminated medical or biological substance (blood, drug, fluid)
        • administered (by) NEC

Convert Y64.9 to ICD-9-CM

  • ICD-9-CM Code: E875.9 - Contamination NOS

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.