T42.3
Non-billablePoisoning by, adverse effect of and underdosing of barbiturates
T42.3 is the ICD-10-CM code for Poisoning by, adverse effect of and underdosing of barbiturates. It is a non-billable category code — use a more specific child code such as T42.3X for billing.
S00-T88 Injury, poisoning and certain other consequences of external causes
Excludes1 — not coded here
- •poisoning by, adverse effect of and underdosing of thiobarbiturates (T41.1-)
Frequently asked questions
- What is ICD-10 code T42.3?
- T42.3 is the ICD-10-CM code for "Poisoning by, adverse effect of and underdosing of barbiturates". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
- Is T42.3 a billable code?
- No — T42.3 is a non-billable header code. Use a more specific child code (such as T42.3X) for billing.
- What is excluded from T42.3?
- Excludes1 (not coded here): poisoning by, adverse effect of and underdosing of thiobarbiturates (T41.1-).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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