ICD-10 Code T50.991

Poisoning by other drugs, medicaments and biological substances, accidental (unintentional)

Version 2019 Replaced Code Non-Billable Code Poisoning Accidental
ICD-10:T50.991
Short Description:Poisoning by oth drug/meds/biol subst, accidental
Long Description:Poisoning by other drugs, medicaments and biological substances, accidental (unintentional)

Not Valid for Submission

ICD-10 T50.991 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 drugs, medicaments and biological substances, accidental (unintentional). 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:

  • T50.991A - Poisoning by other drugs, medicaments and biological substances, accidental (unintentional), initial encounter
  • T50.991D - Poisoning by other drugs, medicaments and biological substances, accidental (unintentional), subsequent encounter
  • T50.991S - Poisoning by other drugs, medicaments and biological substances, accidental (unintentional), 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)
      • Diuretics and oth and unsp drug/meds/biol subst (T50)

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 T50.991 is grouped in the following groups for version MS-DRG V36.0 applicable from 10/01/2018 through 09/30/2019.

  • 917 - POISONING AND TOXIC EFFECTS OF DRUGS WITH MCC
  • 918 - POISONING AND TOXIC EFFECTS OF DRUGS WITHOUT MCC
  • 922 - OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITH MCC
  • 923 - OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITHOUT MCC
  • 949 - AFTERCARE WITH CC/MCC
  • 950 - AFTERCARE WITHOUT CC/MCC

Synonyms

The following clinical terms are approximate synonyms:

  • 4-aminopyridine poisoning
  • Accidental acitretin overdose
  • Accidental etretinate overdose
  • Accidental immunostimulant overdose
  • Accidental immunostimulant poisoning
  • Accidental isotretinoin overdose
  • Accidental parathyroid hormone poisoning
  • Accidental phosphodiesterase inhibitor overdose
  • Accidental phosphodiesterase inhibitor poisoning
  • Accidental tretinoin overdose
  • Acitretin overdose
  • Calcium regulating agent overdose
  • Etretinate overdose
  • Immunostimulant overdose
  • Immunostimulant poisoning
  • Ionophore poisoning
  • Isotretinoin overdose
  • Oral dermatological agent overdose
  • Phenanthrene derivative poisoning
  • Phenanthrene poisoning
  • Phosphodiesterase inhibitor overdose
  • Phosphodiesterase inhibitor poisoning
  • Poisoning by parathyroid derivative
  • Poisoning by parathyroid hormone AND/OR parathyroid derivative
  • Retinoid overdose
  • Tretinoin overdose
  • Tretinoin overdose

Table of Drugs and Chemicals

The code T50.991 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
Acetohydroxamic acidT50.991T50.992T50.993T50.994T50.995T50.996
AcitretinT50.991T50.992T50.993T50.994T50.995T50.996
ArginineT50.991T50.992T50.993T50.994T50.995T50.996
Arginine
  »glutamate
T50.991T50.992T50.993T50.994T50.995T50.996
Baking sodaT50.991T50.992T50.993T50.994T50.995T50.996
BergaptenT50.991T50.992T50.993T50.994T50.995T50.996
BHAT50.991T50.992T50.993T50.994T50.995T50.996
Bromophenol blue reagentT50.991T50.992T50.993T50.994T50.995T50.996
Butylated hydroxy-anisoleT50.991T50.992T50.993T50.994T50.995T50.996
CalcitoninT50.991T50.992T50.993T50.994T50.995T50.996
Calculus-dissolving drugT50.991T50.992T50.993T50.994T50.995T50.996
CanthaxanthinT50.991T50.992T50.993T50.994T50.995T50.996
CetomacrogolT50.991T50.992T50.993T50.994T50.995T50.996
ChlorophyllT50.991T50.992T50.993T50.994T50.995T50.996
CianidanolT50.991T50.992T50.993T50.994T50.995T50.996
Clodronic acidT50.991T50.992T50.993T50.994T50.995T50.996
Coenzyme AT50.991T50.992T50.993T50.994T50.995T50.996
Cogalactoiso-meraseT50.991T50.992T50.993T50.994T50.995T50.996
CollagenT50.991T50.992T50.993T50.994T50.995T50.996
Colorant [See Also: Dye]T50.991T50.992T50.993T50.994T50.995T50.996
CyclamateT50.991T50.992T50.993T50.994T50.995T50.996
Deanol (aceglumate)T50.991T50.992T50.993T50.994T50.995T50.996
Diacetyl monoximeT50.991T50.992T50.993T50.994
ElcatoninT50.991T50.992T50.993T50.994T50.995T50.996
EpomediolT50.991T50.992T50.993T50.994T50.995T50.996
EtidronateT50.991T50.992T50.993T50.994T50.995T50.996
Etidronic acid (disodium salt)T50.991T50.992T50.993T50.994T50.995T50.996
EtretinateT50.991T50.992T50.993T50.994T50.995T50.996
Fat suspension, intravenousT50.991T50.992T50.993T50.994T50.995T50.996
Gallium citrateT50.991T50.992T50.993T50.994T50.995T50.996
GelsemineT50.991T50.992T50.993T50.994T50.995T50.996
Gluconic acidT50.991T50.992T50.993T50.994T50.995T50.996
GlycerophosphateT50.991T50.992T50.993T50.994T50.995T50.996
Guaiac reagentT50.991T50.992T50.993T50.994T50.995T50.996
InositolT50.991T50.992T50.993T50.994T50.995T50.996
Inositol
  »nicotinate
T50.991T50.992T50.993T50.994T50.995T50.996
IntravenousT50.991T50.992T50.993T50.994T50.995T50.996
Intravenous
  »amino acids
T50.991T50.992T50.993T50.994T50.995T50.996
Intravenous
  »fat suspension
T50.991T50.992T50.993T50.994T50.995T50.996
IsotretinoinT50.991T50.992T50.993T50.994T50.995T50.996
LevocarnitineT50.991T50.992T50.993T50.994T50.995T50.996
LevoglutamideT50.991T50.992T50.993T50.994T50.995T50.996
MacrogolT50.991T50.992T50.993T50.994T50.995T50.996
MethionineT50.991T50.992T50.993T50.994T50.995T50.996
MethoxsalenT50.991T50.992T50.993T50.994T50.995T50.996
5-Methoxypsoralen (5-MOP)T50.991T50.992T50.993T50.994T50.995T50.996
8-Methoxypsoralen (8-MOP)T50.991T50.992T50.993T50.994T50.995T50.996
Methylethyl celluloseT50.991T50.992T50.993T50.994T50.995T50.996
MonooctanoinT50.991T50.992T50.993T50.994T50.995T50.996
OctanoinT50.991T50.992T50.993T50.994T50.995T50.996
OrazamideT50.991T50.992T50.993T50.994T50.995T50.996
Ornithine aspartateT50.991T50.992T50.993T50.994T50.995T50.996
Palm kernel oilT50.991T50.992T50.993T50.994T50.995T50.996
ParathormoneT50.991T50.992T50.993T50.994T50.995T50.996
Parathyroid extractT50.991T50.992T50.993T50.994T50.995T50.996
Phenaphthazine reagentT50.991T50.992T50.993T50.994T50.995T50.996
Protein hydrolysateT50.991T50.992T50.993T50.994T50.995T50.996
Psoralens (medicinal)T50.991T50.992T50.993T50.994T50.995T50.996
SerotoninT50.991T50.992T50.993T50.994T50.995T50.996
SilibininT50.991T50.992T50.993T50.994T50.995T50.996
SilymarinT50.991T50.992T50.993T50.994T50.995T50.996
Teriparatide (acetate)T50.991T50.992T50.993T50.994T50.995T50.996
ThioctamideT50.991T50.992T50.993T50.994T50.995T50.996
Thioctic acidT50.991T50.992T50.993T50.994T50.995T50.996
TidiacicT50.991T50.992T50.993T50.994T50.995T50.996
TioproninT50.991T50.992T50.993T50.994T50.995T50.996
TragacanthT50.991T50.992T50.993T50.994T50.995T50.996
Ursodeoxycholic acidT50.991T50.992T50.993T50.994T50.995T50.996
UrsodiolT50.991T50.992T50.993T50.994T50.995T50.996

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.