T63.91
⚠ Non-billable (Header)Toxic effect of contact with unspecified venomous animal, accidental (unintentional)
Injury, poisoning and certain other consequences of external causes (S00-T88)
⚠️ This is a category header code — not billable. Use a more specific child code below.
⚠️ Excludes2
inheritedRules inherited from parent codes.
- • ingestion of toxic animal or plant (T61.-, T62.-)
Child Codes (3)
Clinical Description
ICD-10-CM code T63.91 represents toxic effect of contact with unspecified venomous animal, accidental (unintentional). This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.
This is a 6-character code at the 5th level of specificity. There are 3 more specific child codes under T63.91.
Frequently Asked Questions
What is ICD-10 code T63.91?
ICD-10-CM code T63.91 is "Toxic effect of contact with unspecified venomous animal, accidental (unintentional)". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is T63.91 a billable ICD-10 code?
No, T63.91 is a non-billable header code. A more specific child code must be used for billing.
Can T63.91 be coded with other codes?
T63.91 has 1 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in T63.9
Other codes in the same category that may be relevant for differential coding:
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Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)