Y64.9

Billable code

Contaminated medical or biological substance administered by unspecified means

The ICD-10 code for contaminated medical or biological substance administered by unspecified means is Y64.9.

Clinical notes

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.