T43.59 — Poisoning by, adverse effect of and underdosing of other antipsychotics and neuroleptics
Is T43.59 billable?
No — T43.59 is a non-billable header code. T43.59 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 T43.59.
Billable codes under this header
- T43.591APoisoning by other antipsychotics and neuroleptics, accidental (unintentional), initial encounter
- T43.591DPoisoning by other antipsychotics and neuroleptics, accidental (unintentional), subsequent encounter
- T43.591SPoisoning by other antipsychotics and neuroleptics, accidental (unintentional), sequela
- T43.592APoisoning by other antipsychotics and neuroleptics, intentional self-harm, initial encounter
- T43.592DPoisoning by other antipsychotics and neuroleptics, intentional self-harm, subsequent encounter
- T43.592SPoisoning by other antipsychotics and neuroleptics, intentional self-harm, sequela
- T43.593APoisoning by other antipsychotics and neuroleptics, assault, initial encounter
- T43.593DPoisoning by other antipsychotics and neuroleptics, assault, subsequent encounter
- T43.593SPoisoning by other antipsychotics and neuroleptics, assault, sequela
- T43.594APoisoning by other antipsychotics and neuroleptics, undetermined, initial encounter
- T43.594DPoisoning by other antipsychotics and neuroleptics, undetermined, subsequent encounter
- T43.594SPoisoning by other antipsychotics and neuroleptics, undetermined, sequela
- T43.595AAdverse effect of other antipsychotics and neuroleptics, initial encounter
- T43.595DAdverse effect of other antipsychotics and neuroleptics, subsequent encounter
- T43.595SAdverse effect of other antipsychotics and neuroleptics, sequela
- T43.596AUnderdosing of other antipsychotics and neuroleptics, initial encounter
- T43.596DUnderdosing of other antipsychotics and neuroleptics, subsequent encounter
- T43.596SUnderdosing of other antipsychotics and neuroleptics, sequela
T43.59 at a glance
| Code | T43.59 |
|---|---|
| Description | Poisoning by, adverse effect of and underdosing of other antipsychotics and neuroleptics |
| 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 T43.59 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-)
Excludes1 — never code together — inherited from T43.5
The conditions below can never be reported together with T43.59 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- poisoning by, adverse effect of and underdosing of rauwolfia (T46.5-)
Code first — inherited from T36-T50
The underlying condition below must be sequenced before T43.59. T43.59 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T43.59 to fully describe the condition. T43.59 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 T43.59 to fully describe the condition. T43.59 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T43.59, but a patient may have both at the same time. When documentation supports it, T43.59 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T43.59, but a patient may have both at the same time. When documentation supports it, T43.59 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T43
The conditions below are not part of T43.59, but a patient may have both at the same time. When documentation supports it, T43.59 and the excluded code may both be reported.
What codes fall under T43.59? (6)
- T43.591Poisoning by other antipsychotics and neuroleptics, accidental (unintentional)not billable
- T43.592Poisoning by other antipsychotics and neuroleptics, intentional self-harmnot billable
- T43.593Poisoning by other antipsychotics and neuroleptics, assaultnot billable
- T43.594Poisoning by other antipsychotics and neuroleptics, undeterminednot billable
- T43.595Adverse effect of other antipsychotics and neurolepticsnot billable
- T43.596Underdosing of other antipsychotics and neurolepticsnot billable
How long has T43.59 existed?
T43.59 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.