2024 ICD-10-CM Diagnosis Code T46.7X1

Poisoning by peripheral vasodilators, accidental (unintentional)

ICD-10-CM Code:
T46.7X1
ICD-10 Code for:
Poisoning by peripheral vasodilators, accidental
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances
      (T36-T50)
      • Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
        (T46)

T46.7X1 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of poisoning by peripheral vasodilators, accidental (unintentional). The code is not specific and is NOT valid for the year 2024 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.

Specific Coding Applicable to Poisoning by peripheral vasodilators, accidental

Non-specific codes like T46.7X1 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for poisoning by peripheral vasodilators, accidental:

  • Use T46.7X1A for initial encounter - BILLABLE CODE

  • Use T46.7X1D for subsequent encounter - BILLABLE CODE

  • Use T46.7X1S for sequela - BILLABLE CODE

Approximate Synonyms

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

  • Accidental nicotinic acid overdose
  • Accidental phenoxybenzamine overdose
  • Accidental poisoning by nicotinic acid
  • Accidental poisoning by phenoxybenzamine
  • Accidental poisoning caused by tolazoline
  • Nicotinic acid overdose
  • Phenoxybenzamine overdose
  • Poisoning by cyclandelate
  • Poisoning by nicotinic acid
  • Poisoning by phenoxybenzamine
  • Poisoning caused by tolazoline
  • Smooth muscle relaxant poisoning
  • Vitamin B and/or vitamin B derivative overdose
  • Vitamin B and/or vitamin B derivative overdose

Clinical Information

  • Alprostadil

    a potent vasodilator agent that increases peripheral blood flow.
  • Bencyclane

    a vasodilator agent found to be effective in a variety of peripheral circulation disorders. it has various other potentially useful pharmacological effects. its mechanism may involve block of calcium channels.
  • Betahistine

    a histamine analog and h1 receptor agonist that serves as a vasodilator. it is used in meniere disease and in vascular headaches but may exacerbate bronchial asthma and peptic ulcers.
  • Cyclandelate

    a direct-acting smooth muscle relaxant used to dilate blood vessels.
  • Dihydroergocornine

    a 9,10alpha-dihydro derivative of ergotamine that contains isopropyl sidechains at the 2' and 5' positions of the molecule.
  • Dihydroergotoxine

    a mixture of three different hydrogenated derivatives of ergotamine: dihydroergocornine; dihydroergocristine; and dihydroergocryptine. dihydroergotoxine has been proposed to be a neuroprotective agent and a nootropic agent. the mechanism of its therapeutic actions is not clear, but it can act as an alpha-adrenergic antagonist and a dopamine agonist. the methanesulfonate salts of this mixture of alkaloids are called ergoloid mesylates.
  • Ergoloid Mesylates

    a mixture of the mesylates (methane sulfonates) of dihydroergocornine; dihydroergocristine; and the alpha- and beta-isomers of dihydroergocryptine. the substance produces a generalized peripheral vasodilation and a fall in arterial pressure and has been used to treat symptoms of mild to moderate impairment of mental function in the elderly.
  • Flunarizine

    flunarizine is a selective calcium entry blocker with calmodulin binding properties and histamine h1 blocking activity. it is effective in the prophylaxis of migraine, occlusive peripheral vascular disease, vertigo of central and peripheral origin, and as an adjuvant in the therapy of epilepsy.
  • Iloprost

    an eicosanoid, derived from the cyclooxygenase pathway of arachidonic acid metabolism. it is a stable and synthetic analog of epoprostenol, but with a longer half-life than the parent compound. its actions are similar to prostacyclin. iloprost produces vasodilation and inhibits platelet aggregation.
  • Isoxsuprine

    a beta-adrenergic agonist that causes direct relaxation of uterine and vascular smooth muscle. its vasodilating actions are greater on the arteries supplying skeletal muscle than on those supplying skin. it is used in the treatment of peripheral vascular disease and in premature labor.
  • Minoxidil

    a potent direct-acting peripheral vasodilator (vasodilator agents) that reduces peripheral resistance and produces a fall in blood pressure. (from martindale, the extra pharmacopoeia, 30th ed, p371)
  • Moxisylyte

    an alpha-adrenergic blocking agent that is used in raynaud's disease. it is also used locally in the eye to reverse the mydriasis caused by phenylephrine and other sympathomimetic agents. (from martindale, the extra pharmacopoeia, 30th ed, p1312)
  • Niacin

    a water-soluble vitamin of the b complex occurring in various animal and plant tissues. it is required by the body for the formation of coenzymes nad and nadp. it has pellagra-curative, vasodilating, and antilipemic properties.
  • Niacinamide

    an important compound functioning as a component of the coenzyme nad. its primary significance is in the prevention and/or cure of blacktongue and pellagra. most animals cannot manufacture this compound in amounts sufficient to prevent nutritional deficiency and it therefore must be supplemented through dietary intake.
  • Xanthinol Niacinate

    a vasodilator used in peripheral vascular disorders and insufficiency. it may cause gastric discomfort and hypotension.
  • Nicergoline

    an ergot derivative that has been used as a cerebral vasodilator and in peripheral vascular disease. it may ameliorate cognitive deficits in cerebrovascular disorders.
  • Nicotinyl Alcohol

    alcohol analog of nicotinic acid which is a direct-acting peripheral vasodilator that causes flushing and may decrease blood pressure. it is used in vasospasm and threatened gangrene.
  • Nylidrin

    a beta-adrenergic agonist. nylidrin causes peripheral vasodilation, a positive inotropic effect, and increased gastric volume of gastric juice. it is used in the treatment of peripheral vascular disorders and premature labor.
  • Pentoxifylline

    a methylxanthine derivative that inhibits phosphodiesterase and affects blood rheology. it improves blood flow by increasing erythrocyte and leukocyte flexibility. it also inhibits platelet aggregation. pentoxifylline modulates immunologic activity by stimulating cytokine production.
  • Phenoxybenzamine

    an alpha-adrenergic antagonist with long duration of action. it has been used to treat hypertension and as a peripheral vasodilator.
  • Phentolamine

    a nonselective alpha-adrenergic antagonist. it is used in the treatment of hypertension and hypertensive emergencies, pheochromocytoma, vasospasm of raynaud disease and frostbite, clonidine withdrawal syndrome, impotence, and peripheral vascular disease.
  • Suloctidil

    a peripheral vasodilator that was formerly used in the management of peripheral and cerebral vascular disorders. it is hepatotoxic and fatalities have occurred. (from martindale, the extra pharmacopoeia, 30th ed, p1312)
  • Tadalafil

    a carboline derivative and phosphodiesterase 5 inhibitor that is used primarily to treat erectile dysfunction; benign prostatic hyperplasia and primary pulmonary hypertension.
  • Tolazoline

    a vasodilator that apparently has direct actions on blood vessels and also increases cardiac output. tolazoline can interact to some degree with histamine, adrenergic, and cholinergic receptors, but the mechanisms of its therapeutic effects are not clear. it is used in treatment of persistent pulmonary hypertension of the newborn.
  • Trimetazidine

    a vasodilator used in angina of effort or ischemic heart disease.

Coding Guidelines

When coding a poisoning or reaction to the improper use of a medication (e.g., overdose, wrong substance given or taken in error, wrong route of administration), first assign the appropriate code from categories T36-T50. The poisoning codes have an associated intent as their 5th or 6th character (accidental, intentional self-harm, assault and undetermined. If the intent of the poisoning is unknown or unspecified, code the intent as accidental intent. The undetermined intent is only for use if the documentation in the record specifies that the intent cannot be determined. Use additional code(s) for all manifestations of poisonings.

The appropriate 7th character is to be added to each code from block Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system (T46). Use the following options for the aplicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Poisoning by peripheral vasodilators NOS

Table of Drugs and Chemicals

The code is referenced 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.

According to ICD-10-CM coding guidelines it is advised to do not code directly from the Table of Drugs and Chemicals, instead always refer back to the Tabular List when doing the initial coding. Each substance in the table is assigned a code according to the poisoning classification and external causes of adverse effects. It is important to use as many codes as necessary to specify all reported drugs, medicinal or chemical substances. If the same diagnosis code describes the causative agent for more than one adverse reaction, poisoning, toxic effect or underdosing, utilize the code only once.

Substance Poisoning
Accidental
(unintentional)
Poisoning
Accidental
(self-harm)
Poisoning
Assault
Poisoning
Undetermined
Adverse
effect
Underdosing
AlprostadilT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
AzapetineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Bamethan (sulfate)T46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
BencyclaneT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
BetahistineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
BrovincamineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
BuflomedilT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
BuphenineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
ButalamineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
CetiedilT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
CiclonicateT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
CinepazideT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
CyclandelateT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
DihydroergocornineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Dihydroergocristine (mesilate)T46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
DihydroergokryptineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
DihydroergotoxineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Dihydroergotoxine
  »mesilate
T46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Ergoloid mesylatesT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
EtofyllineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Etofylline
  »clofibrate
T46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
FlunarizineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
HepronicateT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
HydromethylpyridineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
IfenprodilT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
IloprostT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
IsoxsuprineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
KallidinogenaseT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
KallikreinT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Lipo-alprostadilT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
MinoxidilT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
MoxisylyteT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Naftidrofuryl (oxalate)T46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NiacinT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NicametateT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NicergolineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NicofuranoseT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Nicotinic acidT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Nicotinyl alcoholT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
NylidrinT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
PentifyllineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
PentoxifyllineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
PhenoxybenzamineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
PhentolamineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
RaubasineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
SildenafilT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
SuloctidilT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
TadalafilT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Tetranicotinoyl fructoseT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Thurfyl nicotinateT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
ThymoxamineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
TolazolineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
TrimetazidineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
VardenafilT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
VasodilanT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
VinburnineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
VinpocetineT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
ViquidilT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Xanthinol nicotinateT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6
Xantinol nicotinateT46.7X1T46.7X2T46.7X3T46.7X4T46.7X5T46.7X6

Patient Education


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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Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • 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. This was the first year ICD-10-CM was implemented into the HIPAA code set.