T46.4X5
⚠ Non-billable (Header)Adverse effect of angiotensin-converting-enzyme inhibitors
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.
❌ Excludes1
inheritedRules inherited from parent codes in the hierarchy.
- • poisoning by, adverse effect of and underdosing of metaraminol (T44.4)
Child Codes (3)
Clinical Description
ICD-10-CM code T46.4X5 represents adverse effect of angiotensin-converting-enzyme inhibitors. 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 T46.4X5. Coders should note that T46.4X5 has 1 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.
Frequently Asked Questions
What is ICD-10 code T46.4X5?
ICD-10-CM code T46.4X5 is "Adverse effect of angiotensin-converting-enzyme inhibitors". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).
Is T46.4X5 a billable ICD-10 code?
No, T46.4X5 is a non-billable header code. A more specific child code must be used for billing.
What codes are excluded with T46.4X5?
T46.4X5 has 1 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.
Related Codes in T46.4X
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)