T40.413
Poisoning by fentanyl or fentanyl analogs, assault
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 3 never code together
T40code
Excludes2 — not included here, but the patient may have both. Code both when documented.
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 3
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here filed at null
No alphabetic index entry points at this code.
Alongside this code 5 same parent — T40.41
T40.411 Poisoning by fentanyl or fentanyl analogs, accidental category T40.412 Poisoning by fentanyl or fentanyl analogs, self-harm category T40.414 Poisoning by fentanyl or fentanyl analogs, undetermined category T40.415 Adverse effect of fentanyl or fentanyl analogs category T40.416 Underdosing of fentanyl or fentanyl analogs category
Subordinate codes 3
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.