T40.2X — Poisoning by, adverse effect of and underdosing of other opioids
Is T40.2X billable?
No — T40.2X is a non-billable header code. T40.2X 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 T40.2X.
Billable codes under this header
- T40.2X1APoisoning by other opioids, accidental (unintentional), initial encounter
- T40.2X1DPoisoning by other opioids, accidental (unintentional), subsequent encounter
- T40.2X1SPoisoning by other opioids, accidental (unintentional), sequela
- T40.2X2APoisoning by other opioids, intentional self-harm, initial encounter
- T40.2X2DPoisoning by other opioids, intentional self-harm, subsequent encounter
- T40.2X2SPoisoning by other opioids, intentional self-harm, sequela
- T40.2X3APoisoning by other opioids, assault, initial encounter
- T40.2X3DPoisoning by other opioids, assault, subsequent encounter
- T40.2X3SPoisoning by other opioids, assault, sequela
- T40.2X4APoisoning by other opioids, undetermined, initial encounter
- T40.2X4DPoisoning by other opioids, undetermined, subsequent encounter
- T40.2X4SPoisoning by other opioids, undetermined, sequela
- T40.2X5AAdverse effect of other opioids, initial encounter
- T40.2X5DAdverse effect of other opioids, subsequent encounter
- T40.2X5SAdverse effect of other opioids, sequela
- T40.2X6AUnderdosing of other opioids, initial encounter
- T40.2X6DUnderdosing of other opioids, subsequent encounter
- T40.2X6SUnderdosing of other opioids, sequela
T40.2X at a glance
| Code | T40.2X |
|---|---|
| Description | Poisoning by, adverse effect of and underdosing of other opioids |
| 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 T40.2X 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 T40.2X. T40.2X describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T40.2X to fully describe the condition. T40.2X 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 T40.2X to fully describe the condition. T40.2X is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T40.2X, but a patient may have both at the same time. When documentation supports it, T40.2X and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T40.2X, but a patient may have both at the same time. When documentation supports it, T40.2X and the excluded code may both be reported.
Excludes2 — not included here — inherited from T40
The conditions below are not part of T40.2X, but a patient may have both at the same time. When documentation supports it, T40.2X 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 T40.2X? (6)
- T40.2X1Poisoning by other opioids, accidental (unintentional)not billable
- T40.2X2Poisoning by other opioids, intentional self-harmnot billable
- T40.2X3Poisoning by other opioids, assaultnot billable
- T40.2X4Poisoning by other opioids, undeterminednot billable
- T40.2X5Adverse effect of other opioidsnot billable
- T40.2X6Underdosing of other opioidsnot billable
How long has T40.2X existed?
T40.2X has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.