ICD-10 Code T43.504

Poisoning by unspecified antipsychotics and neuroleptics, undetermined

Version 2019 Replaced Code Non-Billable Code Poisoning Undetermined

Not Valid for Submission

T43.504 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of poisoning by unspecified antipsychotics and neuroleptics, undetermined. The code is NOT valid for the year 2019 for the submission of HIPAA-covered transactions.

ICD-10: T43.504
Short Description:Poisoning by unsp antipsychot/neurolept, undetermined
Long Description:Poisoning by unspecified antipsychotics and neuroleptics, undetermined

Consider the following ICD-10 codes with a higher level of specificity:

  • T43.504A - Poisoning by unspecified antipsychotics and neuroleptics, undetermined, initial encounter
  • T43.504D - Poisoning by unspecified antipsychotics and neuroleptics, undetermined, subsequent encounter
  • T43.504S - Poisoning by unspecified antipsychotics and neuroleptics, undetermined, sequela

Replaced Code

This code was replaced in the 2019 ICD-10 code set with the code(s) listed below. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2018. This code was replaced for the FY 2019 (October 1, 2018 - September 30, 2019).

  • K59.03 - Drug induced constipation

Code Classification

  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances (T36-T50)
      • Psychotropic drugs, not elsewhere classified (T43)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (first year ICD-10-CM implemented into the HIPAA mandated code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019

Information for Medical Professionals

Diagnostic Related Groups

The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). The diagnosis code T43.504 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.

  • 917 - POISONING AND TOXIC EFFECTS OF DRUGS WITH MCC
  • 918 - POISONING AND TOXIC EFFECTS OF DRUGS WITHOUT MCC
  • 922 - OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITH MCC
  • 923 - OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITHOUT MCC
  • 949 - AFTERCARE WITH CC/MCC
  • 950 - AFTERCARE WITHOUT CC/MCC

Table of Drugs and Chemicals

The code T43.504 is included 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. Each substance in the table is assigned a code according to the poisoning classification and external causes of adverse effects. Use as many codes as necessary to describe all reported drugs, medicinal or chemical substances.

Substance Poisoning
Accidental
(unintentional)
Poisoning
Accidental
self-harm
Poisoning
Assault
Poisoning
Undetermined
Adverse
effect
Underdosing
Antianxiety drug NECT43.501T43.502T43.503T43.504T43.505T43.506
AntihallucinogenT43.501T43.502T43.503T43.504T43.505T43.506
Antipsychotic drugT43.501T43.502T43.503T43.504T43.505T43.506
Antipsychotic drug
  »specified NEC
T43.501T43.502T43.503T43.504T43.505T43.506
Ataractic drug NECT43.501T43.502T43.503T43.504T43.505T43.506
Neuroleptic drug NECT43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NECT43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »with hypnotic or sedative
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »benzodiazepine NEC
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »butyrophenone NEC
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »carbamate
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »dimethylamine
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »ethylamine
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »hydroxyzine
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »major NEC
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »penothiazine NEC
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »phenothiazine-based
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »piperazine NEC
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »piperidine
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »propylamine
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »specified NEC
T43.501T43.502T43.503T43.504T43.505T43.506
Tranquilizer NEC
  »thioxanthene NEC
T43.501T43.502T43.503T43.504T43.505T43.506

Information for Patients


Poisoning

A poison is any substance that is harmful to your body. You might swallow it, inhale it, inject it, or absorb it through your skin. Any substance can be poisonous if too much is taken. Poisons can include

  • Prescription or over-the-counter medicines taken in doses that are too high
  • Overdoses of illegal drugs
  • Carbon monoxide from gas appliances
  • Household products, such as laundry powder or furniture polish
  • Pesticides
  • Indoor or outdoor plants
  • Metals such as lead and mercury

The effects of poisoning range from short-term illness to brain damage, coma, and death. To prevent poisoning it is important to use and store products exactly as their labels say. Keep dangerous products where children can't get to them. Treatment for poisoning depends on the type of poison. If you suspect someone has been poisoned, call your local poison control center at 1-800-222-1222 right away.

  • Poisoning (Medical Encyclopedia)
  • Poisoning first aid (Medical Encyclopedia)
  • Toxicology screen (Medical Encyclopedia)

[Learn More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.