Billable / Specific Code
ICD-10-CM Y64.9 is the diagnosis code for Contaminated medical or biological substance administered by unspecified means. This code falls under the section "Misadventures to patients during surgical and medical care" within Chapter 20 — External causes of morbidity (V00-Y99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where Y64.9 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, Y64.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Y64.9 is the ICD-10-CM diagnosis code for "Contaminated medical or biological substance administered by unspecified means". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of Y64.9 is Y64 ("Contaminated medical or biological substances"). Y64.9 provides a more specific classification within this category.
Y64.9 is located in Section Y62-Y69 — "Misadventures to patients during surgical and medical care" within Chapter 20 of the ICD-10-CM Tabular List.
Use Y64.9 when the patients documented diagnosis matches "Contaminated medical or biological substance administered by unspecified means" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Contaminated medical or biological substance administered by unspecified means is Y64.9.
Yes, Y64.9 can be used as a primary diagnosis code since it is billable and specific.
Y64.9 is in Chapter 20 of the ICD-10-CM Tabular List.
Yes, Y64.9 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.