Is T40.991A a billable code?
Yes. T40.991A is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.
ICD-10-CM FY2027 diagnosis code
T40.991A: Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional), initial encounter
Billable codeValid for dates of service October 1, 2026 to September 30, 2027
T40.991A is a billable ICD-10-CM diagnosis code for poisoning by other psychodysleptics [hallucinogens], accidental (unintentional), initial encounter. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.
Superbill GeneratorStart a superbill with T40.991A already added.Good Faith EstimateStart a cost estimate with T40.991A already added.CMS-1500 Claim FormFill a claim form with T40.991A in box 21.
Other codes in T40.991 Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional)
T40.991A questions
What does T40.991A mean?
T40.991A is the ICD-10-CM code for Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional), initial encounter. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.