ICD-10 Code T42.6X1

Poisoning by other antiepileptic and sedative-hypnotic drugs, accidental (unintentional)

Version 2019 Replaced Code Non-Billable Code Poisoning Accidental

Not Valid for Submission

T42.6X1 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 other antiepileptic and sedative-hypnotic drugs, accidental (unintentional). The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10: T42.6X1
Short Description:Poisoning by oth antieplptc and sed-hypntc drugs, acc
Long Description:Poisoning by other antiepileptic and sedative-hypnotic drugs, accidental (unintentional)

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

  • T42.6X1A - Poisoning by other antiepileptic and sedative-hypnotic drugs, accidental (unintentional), initial encounter
  • T42.6X1D - Poisoning by other antiepileptic and sedative-hypnotic drugs, accidental (unintentional), subsequent encounter
  • T42.6X1S - Poisoning by other antiepileptic and sedative-hypnotic drugs, accidental (unintentional), sequela

Replaced Code

This code was replaced in the 2020 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, 2019. This code was replaced for the FY 2020 (October 1, 2019 - September 30, 2020).

  • 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)
      • Antiepileptic, sedative- hypnotic and antiparkinsonism drugs (T42)

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
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Medical Professionals

Synonyms

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

  • Accidental beclamide overdose
  • Accidental beclamide poisoning
  • Accidental chloral hydrate overdose
  • Accidental chlormethiazole overdose
  • Accidental chlormethiazole poisoning
  • Accidental chlormezanone overdose
  • Accidental chlormezanone poisoning
  • Accidental dichloralphenazone overdose
  • Accidental gabapentin overdose
  • Accidental gabapentin poisoning
  • Accidental lamotrigine overdose
  • Accidental lamotrigine poisoning
  • Accidental methyprylone overdose
  • Accidental methyprylone poisoning
  • Accidental overdose by calcium channel blocker
  • Accidental overdose by sodium valproate
  • Accidental overdose of non-barbiturate hypnotic
  • Accidental paraldehyde overdose
  • Accidental piracetam overdose
  • Accidental piracetam poisoning
  • Accidental poisoning by bromide
  • Accidental poisoning by bromine compounds
  • Accidental poisoning by cabromal derivative
  • Accidental poisoning by calcium channel blocker
  • Accidental poisoning by carbamic ester
  • Accidental poisoning by chloral hydrate
  • Accidental poisoning by glutethimide
  • Accidental poisoning by methaqualone
  • Accidental poisoning by paraldehyde
  • Accidental poisoning by sodium valproate
  • Accidental primidone overdose
  • Accidental primidone poisoning
  • Accidental triclofos sodium overdose
  • Accidental triclofos sodium poisoning
  • Accidental vigabatrin overdose
  • Accidental vigabatrin poisoning
  • Accidental zolpidem overdose
  • Accidental zolpidem poisoning
  • Accidental zopiclone overdose
  • Accidental zopiclone poisoning
  • Beclamide overdose
  • Beclamide poisoning
  • Bromide poisoning
  • Bromine compound poisoning
  • Carbamate overdose
  • Carbromal poisoning
  • Chloral hydrate overdose
  • Chloral sedative overdose
  • Chloral sedative poisoning
  • Chlormethiazole overdose
  • Chlormethiazole poisoning
  • Chlormezanone overdose
  • Chlormezanone poisoning
  • Chronic bromine poisoning
  • Dichloralphenazone overdose
  • Fetal or neonatal effect of placental or breast transfer of anticonvulsant
  • Fetal primidone syndrome
  • Gabapentin overdose
  • Gabapentin poisoning
  • Glutethimide poisoning
  • Lamotrigine overdose
  • Lamotrigine poisoning
  • Methaqualone poisoning
  • Methyprylone overdose
  • Methyprylone poisoning
  • Overdose of calcium-channel blockers
  • Overdose of sodium valproate
  • Paraldehyde overdose
  • Piracetam overdose
  • Piracetam poisoning
  • Poisoning by calcium-channel blockers
  • Poisoning by carbromal derivative
  • Poisoning by chloral hydrate
  • Poisoning by mixed sedative
  • Poisoning by paraldehyde
  • Poisoning by primidone
  • Poisoning by sodium valproate
  • Polybrominated biphenyl poisoning
  • Primidone overdose
  • Triclofos sodium overdose
  • Triclofos sodium poisoning
  • Vigabatrin overdose
  • Vigabatrin poisoning
  • Zolpidem overdose
  • Zolpidem poisoning
  • Zopiclone overdose
  • Zopiclone poisoning

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references for the code T42.6X1 are found in the tabular index:

  • Inclusion Terms:
    • Poisoning by other antiepileptic and sedative-hypnotic drugs NOS

Table of Drugs and Chemicals

The code T42.6X1 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
AcecarbromalT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
AcetylcarbromalT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
AcetylpheneturideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
AllylisopropylacetylureaT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
AllyltribromideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ApronalideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
AvomineT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
BarbexacloneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
BeclamideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Beta-ChlorT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Bromal (hydrate)T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Bromide saltsT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
BromineT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Bromine
  »compounds (medicinal)
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Bromine
  »sedative
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Bromine
  »vapor
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
BromisovalT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
BromisovalumT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
BromoformT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
BromuralT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
BromvaletoneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Butylchloral hydrateT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Carbamate (sedative)T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Carbamate (sedative)
  »herbicide
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Carbamate (sedative)
  »insecticide
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
CarbromalT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ChloralT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Chloral
  »derivative
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Chloral
  »hydrate
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ChloralamideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ChloralodolT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ChlorbutolT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ChlorethiazolT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ChloretoneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ChlorhexadolT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ChlormethiazoleT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ChlormezanoneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ClomethiazoleT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Cloral betaineT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
DichloralphenozoneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Diethylsulfone-diethylmethaneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
DivalproexT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
DoridenT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
DormisonT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
EctylureaT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
EthchlorvynolT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
EthinamateT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
EtifoxineT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
GlutethimideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
HexapropymateT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Lactuca (virosa) (extract)T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
LactucariumT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Lettuce opiumT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
LevanilT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
LevopromeT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
MeparfynolT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Methaqualone (compound)T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
MethylparafynolT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Methylpentynol, methylpenthynolT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
MethyprylonT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
NiaprazineT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
NoctecT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
NoludarT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ParacetaldehydeT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ParaldehydeT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
PericlorT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
PetrichloralT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
PhenacemideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
PhenerganT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
PheneturideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
PhthalimidoglutarimideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
PlacidylT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
PrimidoneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ProgabideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Propionaldehyde (medicinal)T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
PyrithyldioneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
QuaaludeT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
SedormidT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
SerenesilT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
SomnosT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
SoporT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
SulfonalT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
SulfonethylmethaneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
SulfonmethaneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
SulthiameT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
SultiameT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
TetronalT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ToloxatoneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
TribromacetaldehydeT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
TribromomethaneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
TrichloroethanolT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Trichloroethyl phosphateT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
TriclofosT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
TrionalT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
TripleT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Triple
  »bromides
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Triple
  »carbonate
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Triple
  »vaccine
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Triple
  »vaccine
    »DPT
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Triple
  »vaccine
    »including pertussis
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Triple
  »vaccine
    »MMR
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ValerianT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Valerian
  »root
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Valerian
  »tincture
T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ValmidT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ValnoctamideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Valproate (sodium)T42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
Valproic acidT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ValpromideT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
VigabatrinT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
WelldormT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ZolpidemT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6
ZopicloneT42.6X1T42.6X2T42.6X3T42.6X4T42.6X5T42.6X6

Information for Patients


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]

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.

Index of Diseases and Injuries Definitions

  • And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
  • Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
  • Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
  • Type 1 Excludes Notes - A type 1 Excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Type 2 Excludes Notes - A type 2 Excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
  • Inclusion terms - List of terms is included under some codes. These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
  • NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
  • See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
  • See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
  • 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.