T44.8X3
⚠ Non-billable (Header)Poisoning by centrally-acting and adrenergic-neuron-blocking agents, assault
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.
- • poisoning by, adverse effect of and underdosing of clonidine (T46.5)
- • poisoning by, adverse effect of and underdosing of guanethidine (T46.5)
Child Codes (3)
Clinical Description
ICD-10-CM code T44.8X3 represents poisoning by centrally-acting and adrenergic-neuron-blocking agents, assault. 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 7-character code at the 6th level of specificity. There are 3 more specific child codes under T44.8X3.
Frequently Asked Questions
What is ICD-10 code T44.8X3?
ICD-10-CM code T44.8X3 is "Poisoning by centrally-acting and adrenergic-neuron-blocking agents, assault". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is T44.8X3 a billable ICD-10 code?
No, T44.8X3 is a non-billable header code. A more specific child code must be used for billing.
Can T44.8X3 be coded with other codes?
T44.8X3 has 2 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.
Related Codes in T44.8X
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)