ICD-10 Code T42.6X6

Underdosing of other antiepileptic and sedative-hypnotic drugs

Version 2019 Replaced Code Non-Billable Code Underdosing
ICD-10:T42.6X6
Short Description:Underdosing of oth antiepileptic and sedative-hypnotic drugs
Long Description:Underdosing of other antiepileptic and sedative-hypnotic drugs

Not Valid for Submission

ICD-10 T42.6X6 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of underdosing of other antiepileptic and sedative-hypnotic drugs. The code is NOT valid for the year 2019 for the submission of HIPAA-covered transactions.

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

  • T42.6X6A - Underdosing of other antiepileptic and sedative-hypnotic drugs, initial encounter
  • T42.6X6D - Underdosing of other antiepileptic and sedative-hypnotic drugs, subsequent encounter
  • T42.6X6S - Underdosing of other antiepileptic and sedative-hypnotic drugs, sequela

Deleted Code

This code was deleted 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)
      • Antiepileptic, sedative- hypnotic and antiparkinsonism drugs (T42)

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 T42.6X6 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.

  • 949 - AFTERCARE WITH CC/MCC
  • 949 - AFTERCARE WITH CC/MCC
  • 950 - AFTERCARE WITHOUT CC/MCC
  • 950 - AFTERCARE WITHOUT CC/MCC

Table of Drugs and Chemicals

The code T42.6X6 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

  • 6 Tips to Avoid Medication Mistakes (Food and Drug Administration)
  • How and when to get rid of unused medicines (Medical Encyclopedia)
  • Keeping your medications organized (Medical Encyclopedia)
  • Medication safety during your hospital stay (Medical Encyclopedia)
  • Medication safety: Filling your prescription (Medical Encyclopedia)
  • Storing your medicines (Medical Encyclopedia)
  • Taking medicine at home - create a routine (Medical Encyclopedia)

[Read 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.