2024 ICD-10-CM Diagnosis Code T46.5X4
Poisoning by other antihypertensive drugs, undetermined
- ICD-10-CM Code:
- T46.5X4
- ICD-10 Code for:
- Poisoning by other antihypertensive drugs, undetermined
- Is Billable?
- Not Valid for Submission
- Code Navigator:
T46.5X4 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 other antihypertensive drugs, undetermined. 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 other antihypertensive drugs, undetermined
Non-specific codes like T46.5X4 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 other antihypertensive drugs, undetermined:
Clinical Information
Bethanidine
a guanidinium antihypertensive agent that acts by blocking adrenergic transmission. the precise mode of action is not clear.Clonidine
an imidazoline sympatholytic agent that stimulates alpha-2 adrenergic receptors and central imidazoline receptors. it is commonly used in the management of hypertension.Diazoxide
a benzothiadiazine derivative that is a peripheral vasodilator used for hypertensive emergencies. it lacks diuretic effect, apparently because it lacks a sulfonamide group.Dihydralazine
1,4-dihydrazinophthalazine. an antihypertensive agent with actions and uses similar to those of hydralazine. (from martindale, the extra pharmacopoeia, 30th ed, p354)Dihydroergotamine
a 9,10alpha-dihydro derivative of ergotamine. it is used as a vasoconstrictor, specifically for the therapy of migraine disorders.Ergotamine
a vasoconstrictor found in ergot of central europe. it is a serotonin agonist that has been used as an oxytocic agent and in the treatment of migraine disorders.Ergotamines
a series of structurally-related alkaloids containing the ergotaman backbone structure.Guanabenz
an alpha-2 selective adrenergic agonist used as an antihypertensive agent.Guanethidine
an antihypertensive agent that acts by inhibiting selectively transmission in post-ganglionic adrenergic nerves. it is believed to act mainly by preventing the release of norepinephrine at nerve endings and causes depletion of norepinephrine in peripheral sympathetic nerve terminals as well as in tissues.Guanfacine
a centrally acting antihypertensive agent with specificity towards adrenergic alpha-2 receptors.Hydralazine
a direct-acting vasodilator that is used as an antihypertensive agent.Indapamide
a benzamide-sulfonamide-indole derived diuretic that functions by inhibiting sodium chloride symporters.Carbidopa
an inhibitor of dopa decarboxylase that prevents conversion of levodopa to dopamine. it is used in parkinson disease to reduce peripheral adverse effects of levodopa. it has no anti-parkinson activity by itself.Deoxyepinephrine
sympathomimetic, vasoconstrictor agent.Methyldopa
an alpha-2 adrenergic agonist that has both central and peripheral nervous system effects. its primary clinical use is as an antihypertensive agent.Methysergide
an ergot derivative that is a congener of lysergic acid diethylamide. it antagonizes the effects of serotonin in blood vessels and gastrointestinal smooth muscle, but has few of the properties of other ergot alkaloids. methysergide is used prophylactically in migraine and other vascular headaches and to antagonize serotonin in the carcinoid syndrome.Nitroprusside
a powerful vasodilator used in emergencies to lower blood pressure or to improve cardiac function. it is also an indicator for free sulfhydryl groups in proteins.Pargyline
a monoamine oxidase inhibitor with antihypertensive properties.Pinacidil
a guanidine that opens potassium channels producing direct peripheral vasodilatation of the arterioles. it reduces blood pressure and peripheral resistance and produces fluid retention. (martindale the extra pharmacopoeia, 31st ed)Saralasin
an octapeptide analog of angiotensin ii (bovine) with amino acids 1 and 8 replaced with sarcosine and alanine, respectively. it is a highly specific competitive inhibitor of angiotensin ii that is used in the diagnosis of hypertension.Teprotide
a synthetic nonapeptide (pyr-trp-pro-arg-pro-gln-ile-pro-pro) which is identical to the peptide from the venom of the snake, bothrops jararaca. it inhibits kininase ii and angiotensin i and has been proposed as an antihypertensive agent.Todralazine
an antihypertensive agent with both central and peripheral action; it has some central nervous system depressant effects.Veratrine
a voltage-gated sodium channel activator.
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
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.
Patient Education
Poisoning
A poison is any substance that is harmful to your body. You might swallow it, inhale it, inject it, or absorb it through your skin. Any substance can be poisonous if too much is taken. Poisons can include:
- Prescription or over-the-counter medicines taken in doses that are too high
- Overdoses of illegal drugs
- Carbon monoxide from gas appliances
- Household products, such as laundry powder or furniture polish
- Pesticides
- Indoor or outdoor plants
- Metals such as lead and mercury
The effects of poisoning range from short-term illness to brain damage, coma, and death. To prevent poisoning it is important to use and store products exactly as their labels say. Keep dangerous products where children can't get to them. Treatment for poisoning depends on the type of poison. If you suspect someone has been poisoned, call your local poison control center at 1-800-222-1222 right away.
[Learn More in MedlinePlus]
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.