2024 ICD-10-CM Diagnosis Code T43.591D
Poisoning by other antipsychotics and neuroleptics, accidental (unintentional), subsequent encounter
- ICD-10-CM Code:
- T43.591D
- ICD-10 Code for:
- Poisoning by oth antipsychot/neurolept, accidental, subs
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
- Code Information
- Approximate Synonyms
- Clinical Classification
- Clinical Information
- Coding Guidelines
- Tabular List of Diseases and Injuries
- Diagnostic Related Groups Mapping
- Present on Admission (POA)
- Convert to ICD-9 Code
- Table of Drugs and Chemicals
- Patient Education
- Other Codes Used Similar Conditions
- Code History
T43.591D is a billable diagnosis code used to specify a medical diagnosis of poisoning by other antipsychotics and neuroleptics, accidental (unintentional), subsequent encounter. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.
T43.591D is a subsequent encounter code, includes a 7th character and should be used after the patient has completed active treatment for a condition like poisoning by other antipsychotics and neuroleptics accidental (unintentional). According to ICD-10-CM Guidelines a "subsequent encounter" occurs when the patient is receiving routine care for the condition during the healing or recovery phase of treatment. Subsequent diagnosis codes are appropriate during the recovery phase, no matter how many times the patient has seen the provider for this condition. If the provider needs to adjust the patient's care plan due to a setback or other complication, the encounter becomes active again.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Accidental buspirone overdose
- Accidental buspirone poisoning
- Accidental droperidol overdose
- Accidental droperidol poisoning
- Accidental fluspirilene overdose
- Accidental fluspirilene poisoning
- Accidental hydroxyzine overdose
- Accidental loxapine overdose
- Accidental loxapine poisoning
- Accidental meprobamate overdose
- Accidental oxypertine overdose
- Accidental oxypertine poisoning
- Accidental pimozide overdose
- Accidental pimozide poisoning
- Accidental poisoning by butyrophenone-based tranquilizer
- Accidental poisoning by butyrophenone-based tranquilizer
- Accidental poisoning by carbamates
- Accidental poisoning by carbamates
- Accidental poisoning by carbamic ester
- Accidental poisoning by carbamic ester
- Accidental poisoning by hydroxyzine
- Accidental poisoning by meprobamate
- Accidental remoxipride overdose
- Accidental remoxipride poisoning
- Accidental risperidone overdose
- Accidental risperidone poisoning
- Accidental sulpiride overdose
- Accidental sulpiride poisoning
- Accidental tetrabenazine overdose
- Accidental tetrabenazine poisoning
- Buspirone overdose
- Buspirone poisoning
- Carbamate overdose
- Carbamate overdose
- Diphenylbutylpiperidine overdose
- Diphenylbutylpiperidine poisoning
- Droperidol overdose
- Droperidol poisoning
- Fluspirilene overdose
- Fluspirilene poisoning
- Hydroxyzine overdose
- Hydroxyzine poisoning
- Loxapine overdose
- Loxapine poisoning
- Meprobamate overdose
- Oxypertine overdose
- Oxypertine poisoning
- Pimozide overdose
- Pimozide poisoning
- Poisoning by meprobamate
- Remoxipride overdose
- Remoxipride poisoning
- Risperidone overdose
- Risperidone poisoning
- Sulpiride overdose
- Sulpiride poisoning
- Tetrabenazine overdose
- Tetrabenazine poisoning
- Thioxanthene overdose
- Thioxanthene poisoning
Clinical Classification
Clinical Category is Poisoning by drugs, subsequent encounter
- CCSR Category Code: INJ059
- Inpatient Default CCSR: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
- Outpatient Default CCSR: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
Clinical Information
Amisulpride
a benzamide derivative that is used as an antipsychotic agent for the treatment of schizophrenia. it is also used as an antidepressive agent.Buspirone
an anxiolytic agent and serotonin receptor agonist belonging to the azaspirodecanedione class of compounds. its structure is unrelated to those of the benzodiazapines, but it has an efficacy comparable to diazepam.Droperidol
a butyrophenone with general properties similar to those of haloperidol. it is used in conjunction with an opioid analgesic such as fentanyl to maintain the patient in a calm state of neuroleptanalgesia with indifference to surroundings but still able to cooperate with the surgeon. it is also used as a premedicant, as an antiemetic, and for the control of agitation in acute psychoses. (from martindale, the extra pharmacopoeia, 29th ed, p593)Fluspirilene
a long-acting injectable antipsychotic agent used for chronic schizophrenia.Hydroxyzine
a histamine h1 receptor antagonist that is effective in the treatment of chronic urticaria, dermatitis, and histamine-mediated pruritus. unlike its major metabolite cetirizine, it does cause drowsiness. it is also effective as an antiemetic, for relief of anxiety and tension, and as a sedative.Loxapine
an antipsychotic agent used in schizophrenia.Meprobamate
a carbamate with hypnotic, sedative, and some muscle relaxant properties, although in therapeutic doses reduction of anxiety rather than a direct effect may be responsible for muscle relaxation. meprobamate has been reported to have anticonvulsant actions against petit mal seizures, but not against grand mal seizures (which may be exacerbated). it is used in the treatment of anxiety disorders, and also for the short-term management of insomnia but has largely been superseded by the benzodiazepines. (from martindale, the extra pharmacopoeia, 30th ed, p603)Molindone
an indole derivative effective in schizophrenia and other psychoses and possibly useful in the treatment of the aggressive type of undersocialized conduct disorder. molindone has much lower affinity for d2 receptors than most antipsychotic agents and has a relatively low affinity for d1 receptors. it has only low to moderate affinity for cholinergic and alpha-adrenergic receptors. some electrophysiologic data from animals indicate that molindone has certain characteristics that resemble those of clozapine. (from ama drug evaluations annual, 1994, p283)Olanzapine
a benzodiazepine derivative that binds serotonin receptors; muscarinic receptors; histamine h1 receptors; adrenergic alpha-1 receptors; and dopamine receptors. it is an antipsychotic agent used in the treatment of schizophrenia; bipolar disorder; and major depressive disorder; it may also reduce nausea and vomiting in patients undergoing chemotherapy.Penfluridol
one of the long-acting antipsychotic agents used for maintenance or long-term therapy of schizophrenia and other psychotic disorders.Pimozide
a diphenylbutylpiperidine that is effective as an antipsychotic agent and as an alternative to haloperidol for the suppression of vocal and motor tics in patients with tourette syndrome. although the precise mechanism of action is unknown, blockade of postsynaptic dopamine receptors has been postulated. (from ama drug evaluations annual, 1994, p403)Raclopride
a substituted benzamide that has antipsychotic properties. it is a dopamine d2 receptor (see receptors, dopamine d2) antagonist.Remoxipride
an antipsychotic agent that is specific for dopamine d2 receptors. it has been shown to be effective in the treatment of schizophrenia.Sulpiride
a dopamine d2-receptor antagonist. it has been used therapeutically as an antidepressant, antipsychotic, and as a digestive aid. (from merck index, 11th ed)Tetrabenazine
a drug formerly used as an antipsychotic and treatment of various movement disorders. tetrabenazine blocks neurotransmitter uptake into adrenergic storage vesicles and has been used as a high affinity label for the vesicle transport system.
Coding Guidelines
When coding a poisoning or reaction to the improper use of a medication (e.g., overdose, wrong substance given or taken in error, wrong route of administration), first assign the appropriate code from categories T36-T50. The poisoning codes have an associated intent as their 5th or 6th character (accidental, intentional self-harm, assault and undetermined. If the intent of the poisoning is unknown or unspecified, code the intent as accidental intent. The undetermined intent is only for use if the documentation in the record specifies that the intent cannot be determined. Use additional code(s) for all manifestations of poisonings.
The appropriate 7th character is to be added to each code from block Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified (T43). Use the following options for the aplicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Present on Admission (POA)
T43.591D is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here.
CMS POA Indicator Options and Definitions
POA Indicator | Reason for Code | CMS will pay the CC/MCC DRG? |
---|---|---|
Y | Diagnosis was present at time of inpatient admission. | YES |
N | Diagnosis was not present at time of inpatient admission. | NO |
U | Documentation insufficient to determine if the condition was present at the time of inpatient admission. | NO |
W | Clinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission. | YES |
1 | Unreported/Not used - Exempt from POA reporting. | NO |
Convert T43.591D to ICD-9-CM
- ICD-9-CM Code: V58.89 - Other specfied aftercare
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.
Table of Drugs and Chemicals
The parent code T43.591 of the current diagnosis code is referenced in the Table of Drugs and Chemicals, this table contains a classification of drugs, industrial solvents, corrosive gases, noxious plants, pesticides, and other toxic agents.
According to ICD-10-CM coding guidelines it is advised to do not code directly from the Table of Drugs and Chemicals, instead always refer back to the Tabular List when doing the initial coding. Each substance in the table is assigned a code according to the poisoning classification and external causes of adverse effects. It is important to use as many codes as necessary to specify all reported drugs, medicinal or chemical substances. If the same diagnosis code describes the causative agent for more than one adverse reaction, poisoning, toxic effect or underdosing, utilize the code only once.
Patient Education
Medication Errors
Medicines treat infectious diseases, prevent problems from chronic diseases, and ease pain. But medicines can also cause harmful reactions if not used correctly. Errors can happen in the hospital, at the health care provider's office, at the pharmacy, or at home. You can help prevent errors by:
- Knowing your medicines. When you get a prescription, ask the name of the medicine and check to make sure that the pharmacy gave you the right medicine. Make sure that you understand how often you should take the medicine and how long you should take it.
- Keeping a list of medicines.
- Write down all of the medicines that you are taking, including the names of your medicines, how much you take, and when you take them. Make sure to include any over-the-counter medicines, vitamins, supplements, and herbs that you take.
- List the medicines that you are allergic to or that have caused you problems in the past.
- Take this list with you every time you see a health care provider.
- Reading medicine labels and following the directions. Don't just rely on your memory - read the medication label every time. Be especially careful when giving medicines to children.
- Asking questions. If you don't know the answers to these questions, ask your health care provider or pharmacist:
- Why am I taking this medicine?
- What are the common side effects?
- What should I do if I have side effects?
- When should I stop this medicine?
- Can I take this medicine with the other medicines and supplements on my list?
- Do I need to avoid certain foods or alcohol while taking this medicine?
Food and Drug Administration
[Learn More in MedlinePlus]
Code History
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.