2024 ICD-10-CM Diagnosis Code T40.992

Poisoning by other psychodysleptics [hallucinogens], intentional self-harm

ICD-10-CM Code:
T40.992
ICD-10 Code for:
Poisoning by other psychodysleptics, intentional self-harm
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances
      (T36-T50)
      • Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens]
        (T40)

T40.992 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of poisoning by other psychodysleptics [hallucinogens], intentional self-harm. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Poisoning by other psychodysleptics, intentional self-harm

Non-specific codes like T40.992 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for poisoning by other psychodysleptics, intentional self-harm:

  • Use T40.992A for initial encounter - BILLABLE CODE

  • Use T40.992D for subsequent encounter - BILLABLE CODE

  • Use T40.992S for sequela - BILLABLE CODE

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Intentional mescaline overdose
  • Intentional mescaline poisoning
  • Intentional psilocybin overdose
  • Intentional psilocybin poisoning
  • Mescaline overdose
  • Poisoning by mescaline
  • Poisoning by mescaline
  • Poisoning by psilocybin
  • Poisoning by psilocybin
  • Psilocybin overdose

Clinical Information

  • Mescaline

    hallucinogenic alkaloid isolated from the flowering heads (peyote) of lophophora (formerly anhalonium) williamsii, a mexican cactus used in indian religious rites and as an experimental psychotomimetic. among its cellular effects are agonist actions at some types of serotonin receptors. it has no accepted therapeutic uses although it is legal for religious use by members of the native american church.
  • Phencyclidine

    a hallucinogen formerly used as a veterinary anesthetic, and briefly as a general anesthetic for humans. phencyclidine is similar to ketamine in structure and in many of its effects. like ketamine, it can produce a dissociative state. it exerts its pharmacological action through inhibition of nmda receptors (receptors, n-methyl-d-aspartate). as a drug of abuse, it is known as pcp and angel dust.
  • Phencyclidine Abuse

    the misuse of phencyclidine with associated psychological symptoms and impairment in social or occupational functioning.
  • Receptors, Phencyclidine

    specific sites or molecular structures on cell membranes or in cells with which phencyclidine reacts or to which it binds to elicit the specific response of the cell to phencyclidine. studies have demonstrated the presence of multiple receptor sites for pcp. these are the pcp/sigma site, which binds both pcp and psychotomimetic opiates but not certain antipsychotics, and the pcp site, which selectively binds pcp analogs.
  • Psilocybin

    the major of two hallucinogenic components of teonanacatl, the sacred mushroom of mexico, the other component being psilocin. (from merck index, 11th ed)

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 narcotics and psychodysleptics [hallucinogens] (T40). Use the following options for the aplicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Table of Drugs and Chemicals

The 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.

Substance Poisoning
Accidental
(unintentional)
Poisoning
Accidental
(self-harm)
Poisoning
Assault
Poisoning
Undetermined
Adverse
effect
Underdosing
BufotenineT40.991T40.992T40.993T40.994  
Diethyltryptamine (DET)T40.991T40.992T40.993T40.994  
Hawaiian Woodrose seedsT40.991T40.992T40.993T40.994  
Heavenly Blue (morning glory)T40.991T40.992T40.993T40.994  
Magic mushroomT40.991T40.992T40.993T40.994  
Mescal buttonsT40.991T40.992T40.993T40.994  
MescalineT40.991T40.992T40.993T40.994  
Morning glory seedsT40.991T40.992T40.993T40.994  
Pearly Gates (morning glory seeds)T40.991T40.992T40.993T40.994  
PeyoteT40.991T40.992T40.993T40.994  
PhencyclidineT40.991T40.992T40.993T40.994T40.995T40.996
PsilocinT40.991T40.992T40.993T40.994  
PsilocybinT40.991T40.992T40.993T40.994  
PsilocybineT40.991T40.992T40.993T40.994  
Yohimbic acidT40.991T40.992T40.993T40.994T40.995T40.996

Patient Education


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.


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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.