2021 ICD-10-CM Code T50.991

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

Version 2021
Replaced Code
Non-Billable Code
Poisoning Accidental

Not Valid for Submission

T50.991 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 other drugs, medicaments and biological substances, accidental (unintentional). 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 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)

Code Classification

Specific Coding for Poisoning by oth drug/meds/biol subst, accidental

Header codes like T50.991 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 oth drug/meds/biol subst, accidental:

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 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

Food and Drug Administration


[Learn More]

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)