ICD-10-CM Code T50.991

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

Version 2020 Replaced Code Non-Billable Code Poisoning Accidental

Not Valid for Submission

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 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code T50.991 might also be used to specify conditions or terms like 4-aminopyridine poisoning, accidental acitretin overdose, accidental etretinate overdose, accidental immunostimulant overdose, accidental immunostimulant poisoning, accidental isotretinoin overdose, etc

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)

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

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

Synonyms

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

  • 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
  • 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

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)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA 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

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


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