T40.41 — Poisoning by, adverse effect of and underdosing of fentanyl or fentanyl analogs
Is T40.41 billable?
No — T40.41 is a non-billable header code. T40.41 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 18 billable codes beneath T40.41.
Billable codes under this header
- T40.411APoisoning by fentanyl or fentanyl analogs, accidental (unintentional), initial encounter
- T40.411DPoisoning by fentanyl or fentanyl analogs, accidental (unintentional), subsequent encounter
- T40.411SPoisoning by fentanyl or fentanyl analogs, accidental (unintentional), sequela
- T40.412APoisoning by fentanyl or fentanyl analogs, intentional self-harm, initial encounter
- T40.412DPoisoning by fentanyl or fentanyl analogs, intentional self-harm, subsequent encounter
- T40.412SPoisoning by fentanyl or fentanyl analogs, intentional self-harm, sequela
- T40.413APoisoning by fentanyl or fentanyl analogs, assault, initial encounter
- T40.413DPoisoning by fentanyl or fentanyl analogs, assault, subsequent encounter
- T40.413SPoisoning by fentanyl or fentanyl analogs, assault, sequela
- T40.414APoisoning by fentanyl or fentanyl analogs, undetermined, initial encounter
- T40.414DPoisoning by fentanyl or fentanyl analogs, undetermined, subsequent encounter
- T40.414SPoisoning by fentanyl or fentanyl analogs, undetermined, sequela
- T40.415AAdverse effect of fentanyl or fentanyl analogs, initial encounter
- T40.415DAdverse effect of fentanyl or fentanyl analogs, subsequent encounter
- T40.415SAdverse effect of fentanyl or fentanyl analogs, sequela
- T40.416AUnderdosing of fentanyl or fentanyl analogs, initial encounter
- T40.416DUnderdosing of fentanyl or fentanyl analogs, subsequent encounter
- T40.416SUnderdosing of fentanyl or fentanyl analogs, sequela
T40.41 at a glance
| Code | T40.41 |
|---|---|
| Description | Poisoning by, adverse effect of and underdosing of fentanyl or fentanyl analogs |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from T36-T50
The conditions below can never be reported together with T40.41 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- toxic reaction to local anesthesia in pregnancy (O29.3-)
Code first — inherited from T36-T50
The underlying condition below must be sequenced before T40.41. T40.41 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T40.41 to fully describe the condition. T40.41 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T36-T50
Report an additional code alongside T40.41 to fully describe the condition. T40.41 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T40.41, but a patient may have both at the same time. When documentation supports it, T40.41 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T40.41, but a patient may have both at the same time. When documentation supports it, T40.41 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T40
The conditions below are not part of T40.41, but a patient may have both at the same time. When documentation supports it, T40.41 and the excluded code may both be reported.
- drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.-F19.-)
What codes fall under T40.41? (6)
- T40.411Poisoning by fentanyl or fentanyl analogs, accidental (unintentional)not billable
- T40.412Poisoning by fentanyl or fentanyl analogs, intentional self-harmnot billable
- T40.413Poisoning by fentanyl or fentanyl analogs, assaultnot billable
- T40.414Poisoning by fentanyl or fentanyl analogs, undeterminednot billable
- T40.415Adverse effect of fentanyl or fentanyl analogsnot billable
- T40.416Underdosing of fentanyl or fentanyl analogsnot billable
How long has T40.41 existed?
T40.41 first appears in FY2021 (FY2020 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.