T43.5 — Poisoning by, adverse effect of and underdosing of other and unspecified antipsychotics and neuroleptics
Is T43.5 billable?
No — T43.5 is a non-billable header code. T43.5 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 36 billable codes beneath T43.5.
Billable codes under this header
- T43.501APoisoning by unspecified antipsychotics and neuroleptics, accidental (unintentional), initial encounter
- T43.501DPoisoning by unspecified antipsychotics and neuroleptics, accidental (unintentional), subsequent encounter
- T43.501SPoisoning by unspecified antipsychotics and neuroleptics, accidental (unintentional), sequela
- T43.502APoisoning by unspecified antipsychotics and neuroleptics, intentional self-harm, initial encounter
- T43.502DPoisoning by unspecified antipsychotics and neuroleptics, intentional self-harm, subsequent encounter
- T43.502SPoisoning by unspecified antipsychotics and neuroleptics, intentional self-harm, sequela
- T43.503APoisoning by unspecified antipsychotics and neuroleptics, assault, initial encounter
- T43.503DPoisoning by unspecified antipsychotics and neuroleptics, assault, subsequent encounter
- T43.503SPoisoning by unspecified antipsychotics and neuroleptics, assault, sequela
- T43.504APoisoning by unspecified antipsychotics and neuroleptics, undetermined, initial encounter
- T43.504DPoisoning by unspecified antipsychotics and neuroleptics, undetermined, subsequent encounter
- T43.504SPoisoning by unspecified antipsychotics and neuroleptics, undetermined, sequela
- T43.505AAdverse effect of unspecified antipsychotics and neuroleptics, initial encounter
- T43.505DAdverse effect of unspecified antipsychotics and neuroleptics, subsequent encounter
- T43.505SAdverse effect of unspecified antipsychotics and neuroleptics, sequela
- T43.506AUnderdosing of unspecified antipsychotics and neuroleptics, initial encounter
- T43.506DUnderdosing of unspecified antipsychotics and neuroleptics, subsequent encounter
- T43.506SUnderdosing of unspecified antipsychotics and neuroleptics, sequela
- 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
T43.5 at a glance
| Code | T43.5 |
|---|---|
| Description | Poisoning by, adverse effect of and underdosing of other and unspecified 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
The conditions below can never be reported together with T43.5 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-)
Excludes1 — never code together — inherited from T36-T50
The conditions below can never be reported together with T43.5 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 T43.5. T43.5 describes a manifestation and cannot be the principal or first-listed diagnosis.
Use additional code — inherited from Chapter 19
Report an additional code alongside T43.5 to fully describe the condition. T43.5 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 T43.5 to fully describe the condition. T43.5 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T43.5, but a patient may have both at the same time. When documentation supports it, T43.5 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T36-T50
The conditions below are not part of T43.5, but a patient may have both at the same time. When documentation supports it, T43.5 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T43
The conditions below are not part of T43.5, but a patient may have both at the same time. When documentation supports it, T43.5 and the excluded code may both be reported.
What codes fall under T43.5? (2)
How long has T43.5 existed?
T43.5 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.
What other codes are in the T43 family? (8)
- T43.0Poisoning by, adverse effect of and underdosing of tricyclic and tetracyclic antidepressantsnot billable
- T43.1Poisoning by, adverse effect of and underdosing of monoamine-oxidase-inhibitor antidepressantsnot billable
- T43.2Poisoning by, adverse effect of and underdosing of other and unspecified antidepressantsnot billable
- T43.3Poisoning by, adverse effect of and underdosing of phenothiazine antipsychotics and neurolepticsnot billable
- T43.4Poisoning by, adverse effect of and underdosing of butyrophenone and thiothixene neurolepticsnot billable
- T43.6Poisoning by, adverse effect of and underdosing of psychostimulantsnot billable
- T43.8Poisoning by, adverse effect of and underdosing of other psychotropic drugsnot billable
- T43.9Poisoning by, adverse effect of and underdosing of unspecified psychotropic drugnot billable