T40.99
Header — not billablePoisoning by, adverse effect of and underdosing of other psychodysleptics [hallucinogens]
The ICD-10 code for poisoning by, adverse effect of and underdosing of other psychodysleptics [hallucinogens] is T40.99.
T40.99 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 6 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under T40.99
- T40.991Poisoning by other psychodysleptics [hallucinogens], accidental (unintentional)
- T40.992Poisoning by other psychodysleptics [hallucinogens], intentional self-harm
- T40.993Poisoning by other psychodysleptics [hallucinogens], assault
- T40.994Poisoning by other psychodysleptics [hallucinogens], undetermined
- T40.995Adverse effect of other psychodysleptics [hallucinogens]
- T40.996Underdosing of other psychodysleptics [hallucinogens]
Related codes in this category
- T40.90Poisoning by, adverse effect of and underdosing of unspecified psychodysleptics [hallucinogens]non-billable header
- T40.99Poisoning by, adverse effect of and underdosing of other psychodysleptics [hallucinogens]non-billable header