T40.5X — Poisoning by, adverse effect of and underdosing of cocaine
Is T40.5X billable?
No — T40.5X is a non-billable header code. T40.5X 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 T40.5X.
Billable codes under this header
- T40.5X1APoisoning by cocaine, accidental (unintentional), initial encounter
- T40.5X1DPoisoning by cocaine, accidental (unintentional), subsequent encounter
- T40.5X1SPoisoning by cocaine, accidental (unintentional), sequela
- T40.5X2APoisoning by cocaine, intentional self-harm, initial encounter
- T40.5X2DPoisoning by cocaine, intentional self-harm, subsequent encounter
- T40.5X2SPoisoning by cocaine, intentional self-harm, sequela
- T40.5X3APoisoning by cocaine, assault, initial encounter
- T40.5X3DPoisoning by cocaine, assault, subsequent encounter
- T40.5X3SPoisoning by cocaine, assault, sequela
- T40.5X4APoisoning by cocaine, undetermined, initial encounter
- T40.5X4DPoisoning by cocaine, undetermined, subsequent encounter
- T40.5X4SPoisoning by cocaine, undetermined, sequela
- T40.5X5AAdverse effect of cocaine, initial encounter
- T40.5X5DAdverse effect of cocaine, subsequent encounter
- T40.5X5SAdverse effect of cocaine, sequela
- T40.5X6AUnderdosing of cocaine, initial encounter
- T40.5X6DUnderdosing of cocaine, subsequent encounter
- T40.5X6SUnderdosing of cocaine, sequela
T40.5X at a glance
| Code | T40.5X |
|---|---|
| Description | Poisoning by, adverse effect of and underdosing of cocaine |
| 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 T40.5X 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 T40.5X. T40.5X describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T40.5X to fully describe the condition. T40.5X 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 T40.5X to fully describe the condition. T40.5X is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T40.5X, but a patient may have both at the same time. When documentation supports it, T40.5X and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T40.5X, but a patient may have both at the same time. When documentation supports it, T40.5X and the excluded code may both be reported.
Excludes2 — not included here — inherited from T40
The conditions below are not part of T40.5X, but a patient may have both at the same time. When documentation supports it, T40.5X 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 T40.5X? (6)
- T40.5X1Poisoning by cocaine, accidental (unintentional)not billable
- T40.5X2Poisoning by cocaine, intentional self-harmnot billable
- T40.5X3Poisoning by cocaine, assaultnot billable
- T40.5X4Poisoning by cocaine, undeterminednot billable
- T40.5X5Adverse effect of cocainenot billable
- T40.5X6Underdosing of cocainenot billable
How long has T40.5X existed?
T40.5X 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.