T40.41
Header — not billablePoisoning by, adverse effect of and underdosing of fentanyl or fentanyl analogs
The ICD-10 code for poisoning by, adverse effect of and underdosing of fentanyl or fentanyl analogs is T40.41.
T40.41 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 T40.41
- T40.411Poisoning by fentanyl or fentanyl analogs, accidental (unintentional)
- T40.412Poisoning by fentanyl or fentanyl analogs, intentional self-harm
- T40.413Poisoning by fentanyl or fentanyl analogs, assault
- T40.414Poisoning by fentanyl or fentanyl analogs, undetermined
- T40.415Adverse effect of fentanyl or fentanyl analogs
- T40.416Underdosing of fentanyl or fentanyl analogs
Related codes in this category
- T40.42Poisoning by, adverse effect of and underdosing of tramadolnon-billable header
- T40.49Poisoning by, adverse effect of and underdosing of other synthetic narcoticsnon-billable header
- T40.41Poisoning by, adverse effect of and underdosing of fentanyl or fentanyl analogsnon-billable header