ICD-10 Code T42.8X6

Underdosing of antiparkinsonism drugs and other central muscle-tone depressants

Version 2019 Replaced Code Non-Billable Code Underdosing
ICD-10:T42.8X6
Short Description:Underdosing of antiparkns drug/centr muscle-tone depressants
Long Description:Underdosing of antiparkinsonism drugs and other central muscle-tone depressants

Not Valid for Submission

ICD-10 T42.8X6 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 antiparkinsonism drugs and other central muscle-tone depressants. 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:

  • T42.8X6A - Underdosing of antiparkinsonism drugs and other central muscle-tone depressants, initial encounter
  • T42.8X6D - Underdosing of antiparkinsonism drugs and other central muscle-tone depressants, subsequent encounter
  • T42.8X6S - Underdosing of antiparkinsonism drugs and other central muscle-tone depressants, 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 T42.8X6 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 T42.8X6 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


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.