2021 ICD-10-CM Code T42.8X4

Poisoning by antiparkinsonism drugs and other central muscle-tone depressants, undetermined

Version 2021
Replaced Code
Non-Billable Code
Poisoning Undetermined

Not Valid for Submission

T42.8X4 is a "header" nonspecific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of poisoning by antiparkinsonism drugs and other central muscle-tone depressants, undetermined. The code is NOT valid for the year 2021 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.

The ICD-10-CM code T42.8X4 might also be used to specify conditions or terms like amantadine overdose, amantadine overdose of undetermined intent, amantadine poisoning of undetermined intent, antiviral drug overdose, baclofen overdose , baclofen overdose of undetermined intent, etc.

ICD-10:T42.8X4
Short Description:Poisoning by antiparkns drug/centr muscle-tone depr, undet
Long Description:Poisoning by antiparkinsonism drugs and other central muscle-tone depressants, undetermined

Code Classification

Specific Coding for Poisoning by antiparkns drug/centr muscle-tone depr, undet

Header codes like T42.8X4 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for poisoning by antiparkns drug/centr muscle-tone depr, undet:

Replaced Code

This code was replaced in the 2021 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, 2020. This code was replaced for the FY 2021 (October 1, 2020 - September 30, 2021).


  • K59.03 - Drug induced constipation

Approximate Synonyms

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

Table of Drugs and Chemicals

The code T42.8X4 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
AfloqualoneT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
AmantadineT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
Antiparkinsonism drug NECT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
Antirigidity drug NECT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
BaclofenT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
BenserazideT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
BenzatropineT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
BromocriptineT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
CabergolineT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
Carbidopa (with levodopa)T42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
CarisoprodolT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
ChlorphenesinT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
Chlorphenesin
  »topical (antifungal)
T42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
ChlorzoxazoneT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
DantroleneT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
DeprenalinT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
DeprenylT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
DiethazineT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
DifluoromethyldopaT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
DisipalT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
DopaT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
IdrocilamideT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
L-dopaT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
LevodopaT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
Levodopa
  »with carbidopa
T42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
LisurideT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
Mephenamin (e)T42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
MephenesinT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
MephenoxaloneT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
MesulergineT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
MetaxaloneT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
MetergolineT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
MethocarbamolT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
Methocarbamol
  »skeletal muscle relaxant
T42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
Muscle-tone depressant, central NECT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
Muscle-tone depressant, central NEC
  »specified NEC
T42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
Orphenadrine (hydrochloride)T42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
PergolideT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
PhenprobamateT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
PiribedilT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
RelaT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
SelegilineT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
SomaT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
StyramateT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
TizanidineT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
TolserolT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6
ZoxazolamineT42.8X1T42.8X2T42.8X3T42.8X4T42.8X5T42.8X6

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

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 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 (First year ICD-10-CM implemented into the HIPAA code set)