2026 ICD-10-CM Diagnosis Code T44.994SPoisoning by other drug primarily affecting the autonomic nervous system, undetermined, sequela

AHRQ’s CCSR groups this code into broader clinical categories.

• Arylsulfotransferase

  a sulfotransferase that catalyzes the sulfation of a phenol in the presence of 3'-phosphoadenylylsulfate as sulfate donor to yield an aryl sulfate and adenosine 3',5'-bisphosphate. a number of aromatic compounds can act as acceptors; however, organic hydroxylamines are not substrates. sulfate conjugation by this enzyme is a major pathway for the biotransformation of phenolic and catechol drugs as well as neurotransmitters. ec 2.8.2.1.

• Dopamine

  one of the catecholamine neurotransmitters in the brain. it is derived from tyrosine and is the precursor to norepinephrine and epinephrine. dopamine is a major transmitter in the extrapyramidal system of the brain, and important in regulating movement. a family of receptors (receptors, dopamine) mediate its action.

• Dopamine Agents

  any drugs that are used for their effects on dopamine receptors, on the life cycle of dopamine, or on the survival of dopaminergic neurons.

• Dopamine Agonists

  drugs that bind to and activate dopamine receptors.

• Dopamine and cAMP-Regulated Phosphoprotein 32

  a phosphoprotein that was initially identified as a major target of dopamine activated adenylyl cyclase in the corpus striatum. it regulates the activities of protein phosphatase-1 and protein kinase a, and it is a key mediator of the biochemical, electrophysiological, transcriptional, and behavioral effects of dopamine.

• Dopamine Antagonists

  drugs that bind to but do not activate dopamine receptors, thereby blocking the actions of dopamine or exogenous agonists. many drugs used in the treatment of psychotic disorders (antipsychotic agents) are dopamine antagonists, although their therapeutic effects may be due to long-term adjustments of the brain rather than to the acute effects of blocking dopamine receptors. dopamine antagonists have been used for several other clinical purposes including as antiemetics, in the treatment of tourette syndrome, and for hiccup. dopamine receptor blockade is associated with neuroleptic malignant syndrome.

• Dopamine beta-Hydroxylase

  one of the catecholamine neurotransmitters in the brain. it is derived from tyrosine and is the precursor to norepinephrine and epinephrine. dopamine is a major transmitter in the extrapyramidal system of the brain, and important in regulating movement. a family of receptors (receptors, dopamine) mediate its action.

• Dopamine D2 Receptor Antagonists

  compounds and drugs that bind to and inhibit or block the activation of dopamine d2 receptors.

• Dopamine Plasma Membrane Transport Proteins

  sodium chloride-dependent neurotransmitter symporters located primarily on the plasma membrane of dopaminergic neurons. they remove dopamine from the extracellular space by high affinity reuptake into presynaptic terminals and are the target of dopamine uptake inhibitors.

• Dopamine Uptake Inhibitors

  drugs that block the transport of dopamine into axon terminals or into storage vesicles within terminals. most of the adrenergic uptake inhibitors also inhibit dopamine uptake.

• Dopaminergic Imaging

  functional brain imaging techniques that utilize various radionuclide tracers that bind to different targets in the synapses of dopaminergic neurons.

• Dopaminergic Neurons

  neurons whose primary neurotransmitter is dopamine.

• Receptors, Dopamine

  cell-surface proteins that bind dopamine with high affinity and trigger intracellular changes influencing the behavior of cells.

• Receptors, Dopamine D1

  a subfamily of g-protein-coupled receptors that bind the neurotransmitter dopamine and modulate its effects. d1-class receptor genes lack introns, and the receptors stimulate adenylyl cyclases.

• Receptors, Dopamine D2

  a subfamily of g-protein-coupled receptors that bind the neurotransmitter dopamine and modulate its effects. d2-class receptor genes contain introns, and the receptors inhibit adenylyl cyclases.

• Receptors, Dopamine D3

  a subtype of dopamine d2 receptors that are highly expressed in the limbic system of the brain.

• Receptors, Dopamine D4

  a subtype of dopamine d2 receptors that has high affinity for the antipsychotic clozapine.

• Receptors, Dopamine D5

  a subtype of dopamine d1 receptors that has higher affinity for dopamine and differentially couples to gtp-binding proteins.

• Ephedra

  a plant genus of the family ephedraceae, order ephedrales, class gnetopsida, division gnetophyta.

• Ephedra sinica

  a plant species of the family ephedraceae, order ephedrales, class gnetopsida, division gnetophyta. it is a source of ephedrine and other alkaloids.

• Ephedrine

  a phenethylamine found in ephedra sinica. pseudoephedrine is an isomer. it is an alpha- and beta-adrenergic agonist that may also enhance release of norepinephrine. it has been used for asthma, heart failure, rhinitis, and urinary incontinence, and for its central nervous system stimulatory effects in the treatment of narcolepsy and depression. it has become less extensively used with the advent of more selective agonists.

• Pseudoephedrine

  a phenethylamine that is an isomer of ephedrine which has less central nervous system effects and usage is mainly for respiratory tract decongestion.

• Mephentermine

  a sympathomimetic agent with specificity for alpha-1 adrenergic receptors. it is used to maintain blood pressure in hypotensive states such as following spinal anesthesia.

• Phenylpropanolamine

  a sympathomimetic that acts mainly by causing release of norepinephrine but also has direct agonist activity at some adrenergic receptors. it is most commonly used as a nasal vasoconstrictor and an appetite depressant.

Substances in the Table of Drugs and Chemicals that reference this code family. Always confirm in the Tabular List before coding.