T40.41 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Poisoning by, adverse effect of and underdosing of fentanyl or fentanyl analogs.
Codes
T40.411
Poisoning by fentanyl or fentanyl analogs, accidental (unintentional)
T40.412
Poisoning by fentanyl or fentanyl analogs, intentional self-harm
T40.413
Poisoning by fentanyl or fentanyl analogs, assault
T40.414
Poisoning by fentanyl or fentanyl analogs, undetermined
T40.415
Adverse effect of fentanyl or fentanyl analogs
T40.416
Underdosing of fentanyl or fentanyl analogs
Versions
2026
No changes
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
New code