Drugs primarily affecting the autonomic nervous system (T44)

• ICD-10 Index

  • 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)

      • Drugs primarily affecting the autonomic nervous system (T44)

        • T44 - Drugs primarily affecting the autonomic nervous system NON-BILLABLE CODE
        • T44.0 - Anticholinesterase agents NON-BILLABLE CODE
        • T44.0X - Anticholinesterase agents NON-BILLABLE CODE
        • T44.0X1 - Poisoning by anticholin agents, accidental (unintentional) NON-BILLABLE CODE
        • T44.0X1A - Poisoning by anticholin agents, accidental, init BILLABLE CODE
        • T44.0X1D - Poisoning by anticholin agents, accidental, subs BILLABLE CODE
        • T44.0X1S - Poisoning by anticholin agents, accidental, sequela BILLABLE CODE
        • T44.0X2 - Poisoning by anticholinesterase agents, self-harm NON-BILLABLE CODE
        • T44.0X2A - Poisoning by anticholinesterase agents, self-harm, init BILLABLE CODE
        • T44.0X2D - Poisoning by anticholinesterase agents, self-harm, subs BILLABLE CODE
        • T44.0X2S - Poisoning by anticholinesterase agents, self-harm, sequela BILLABLE CODE
        • T44.0X3 - Poisoning by anticholinesterase agents, assault NON-BILLABLE CODE
        • T44.0X3A - Poisoning by anticholinesterase agents, assault, init encntr BILLABLE CODE
        • T44.0X3D - Poisoning by anticholinesterase agents, assault, subs encntr BILLABLE CODE
        • T44.0X3S - Poisoning by anticholinesterase agents, assault, sequela BILLABLE CODE
        • T44.0X4 - Poisoning by anticholinesterase agents, undetermined NON-BILLABLE CODE
        • T44.0X4A - Poisoning by anticholinesterase agents, undetermined, init BILLABLE CODE
        • T44.0X4D - Poisoning by anticholinesterase agents, undetermined, subs BILLABLE CODE
        • T44.0X4S - Poisoning by anticholin agents, undetermined, sequela BILLABLE CODE
        • T44.0X5 - Adverse effect of anticholinesterase agents NON-BILLABLE CODE
        • T44.0X5A - Adverse effect of anticholinesterase agents, init encntr BILLABLE CODE
        • T44.0X5D - Adverse effect of anticholinesterase agents, subs encntr BILLABLE CODE
        • T44.0X5S - Adverse effect of anticholinesterase agents, sequela BILLABLE CODE
        • T44.0X6 - Underdosing of anticholinesterase agents NON-BILLABLE CODE
        • T44.0X6A - Underdosing of anticholinesterase agents, initial encounter BILLABLE CODE
        • T44.0X6D - Underdosing of anticholinesterase agents, subs encntr BILLABLE CODE
        • T44.0X6S - Underdosing of anticholinesterase agents, sequela BILLABLE CODE
        • T44.1 - Parasympathomimetics NON-BILLABLE CODE
        • T44.1X - Parasympathomimetics NON-BILLABLE CODE
        • T44.1X1 - Poisoning by oth parasympath, accidental (unintentional) NON-BILLABLE CODE
        • T44.1X1A - Poisoning by oth parasympath, accidental, init BILLABLE CODE
        • T44.1X1D - Poisoning by oth parasympath, accidental, subs BILLABLE CODE
        • T44.1X1S - Poisoning by oth parasympath, accidental, sequela BILLABLE CODE
        • T44.1X2 - Poisoning by oth parasympathomimetics, intentional self-harm NON-BILLABLE CODE
        • T44.1X2A - Poisoning by oth parasympathomimetics, self-harm, init BILLABLE CODE
        • T44.1X2D - Poisoning by oth parasympathomimetics, self-harm, subs BILLABLE CODE
        • T44.1X2S - Poisoning by oth parasympathomimetics, self-harm, sequela BILLABLE CODE
        • T44.1X3 - Poisoning by other parasympathomimetics, assault NON-BILLABLE CODE
        • T44.1X3A - Poisoning by oth parasympathomimetics, assault, init encntr BILLABLE CODE
        • T44.1X3D - Poisoning by oth parasympathomimetics, assault, subs encntr BILLABLE CODE
        • T44.1X3S - Poisoning by other parasympathomimetics, assault, sequela BILLABLE CODE
        • T44.1X4 - Poisoning by other parasympathomimetics, undetermined NON-BILLABLE CODE
        • T44.1X4A - Poisoning by oth parasympathomimetics, undetermined, init BILLABLE CODE
        • T44.1X4D - Poisoning by oth parasympathomimetics, undetermined, subs BILLABLE CODE
        • T44.1X4S - Poisoning by oth parasympathomimetics, undetermined, sequela BILLABLE CODE
        • T44.1X5 - Adverse effect of other parasympathomimetics [cholinergics] NON-BILLABLE CODE
        • T44.1X5A - Adverse effect of other parasympathomimetics, init encntr BILLABLE CODE
        • T44.1X5D - Adverse effect of other parasympathomimetics, subs encntr BILLABLE CODE
        • T44.1X5S - Adverse effect of other parasympathomimetics, sequela BILLABLE CODE
        • T44.1X6 - Underdosing of other parasympathomimetics [cholinergics] NON-BILLABLE CODE
        • T44.1X6A - Underdosing of other parasympathomimetics, initial encounter BILLABLE CODE
        • T44.1X6D - Underdosing of other parasympath, subsequent encounter BILLABLE CODE
        • T44.1X6S - Underdosing of other parasympathomimetics, sequela BILLABLE CODE
        • T44.2 - Ganglionic blocking drugs NON-BILLABLE CODE
        • T44.2X - Ganglionic blocking drugs NON-BILLABLE CODE
        • T44.2X1 - Poisoning by ganglionic blocking drugs, accidental NON-BILLABLE CODE
        • T44.2X1A - Poisoning by ganglionic blocking drugs, accidental, init BILLABLE CODE
        • T44.2X1D - Poisoning by ganglionic blocking drugs, accidental, subs BILLABLE CODE
        • T44.2X1S - Poisoning by ganglionic blocking drugs, accidental, sequela BILLABLE CODE
        • T44.2X2 - Poisoning by ganglionic blocking drugs, self-harm NON-BILLABLE CODE
        • T44.2X2A - Poisoning by ganglionic blocking drugs, self-harm, init BILLABLE CODE
        • T44.2X2D - Poisoning by ganglionic blocking drugs, self-harm, subs BILLABLE CODE
        • T44.2X2S - Poisoning by ganglionic blocking drugs, self-harm, sequela BILLABLE CODE
        • T44.2X3 - Poisoning by ganglionic blocking drugs, assault NON-BILLABLE CODE
        • T44.2X3A - Poisoning by ganglionic blocking drugs, assault, init encntr BILLABLE CODE
        • T44.2X3D - Poisoning by ganglionic blocking drugs, assault, subs encntr BILLABLE CODE
        • T44.2X3S - Poisoning by ganglionic blocking drugs, assault, sequela BILLABLE CODE
        • T44.2X4 - Poisoning by ganglionic blocking drugs, undetermined NON-BILLABLE CODE
        • T44.2X4A - Poisoning by ganglionic blocking drugs, undetermined, init BILLABLE CODE
        • T44.2X4D - Poisoning by ganglionic blocking drugs, undetermined, subs BILLABLE CODE
        • T44.2X4S - Poisoning by ganglionic blocking drugs, undet, sequela BILLABLE CODE
        • T44.2X5 - Adverse effect of ganglionic blocking drugs NON-BILLABLE CODE
        • T44.2X5A - Adverse effect of ganglionic blocking drugs, init encntr BILLABLE CODE
        • T44.2X5D - Adverse effect of ganglionic blocking drugs, subs encntr BILLABLE CODE
        • T44.2X5S - Adverse effect of ganglionic blocking drugs, sequela BILLABLE CODE
        • T44.2X6 - Underdosing of ganglionic blocking drugs NON-BILLABLE CODE
        • T44.2X6A - Underdosing of ganglionic blocking drugs, initial encounter BILLABLE CODE
        • T44.2X6D - Underdosing of ganglionic blocking drugs, subs encntr BILLABLE CODE
        • T44.2X6S - Underdosing of ganglionic blocking drugs, sequela BILLABLE CODE
        • T44.3 - Parasympatholytics and spasmolytics NON-BILLABLE CODE
        • T44.3X - Parasympatholytics and spasmolytics NON-BILLABLE CODE
        • T44.3X1 - Poisoning by oth parasympath and spasmolytics, accidental NON-BILLABLE CODE
        • T44.3X1A - Poisoning by oth parasympath and spasmolytics, acc, init BILLABLE CODE
        • T44.3X1D - Poisoning by oth parasympath and spasmolytics, acc, subs BILLABLE CODE
        • T44.3X1S - Poisoning by oth parasympath and spasmolytics, acc, sequela BILLABLE CODE
        • T44.3X2 - Poisoning by oth parasympath and spasmolytics, self-harm NON-BILLABLE CODE
        • T44.3X2A - Poisn by oth parasympath and spasmolytics, self-harm, init BILLABLE CODE
        • T44.3X2D - Poisn by oth parasympath and spasmolytics, self-harm, subs BILLABLE CODE
        • T44.3X2S - Poisn by oth parasympath and spasmolytics, slf-hrm, sequela BILLABLE CODE
        • T44.3X3 - Poisoning by oth parasympath and spasmolytics, assault NON-BILLABLE CODE
        • T44.3X3A - Poisoning by oth parasympath and spasmolytics, assault, init BILLABLE CODE
        • T44.3X3D - Poisoning by oth parasympath and spasmolytics, assault, subs BILLABLE CODE
        • T44.3X3S - Poisn by oth parasympath and spasmolytics, assault, sequela BILLABLE CODE
        • T44.3X4 - Poisoning by oth parasympath and spasmolytics, undetermined NON-BILLABLE CODE
        • T44.3X4A - Poisoning by oth parasympath and spasmolytics, undet, init BILLABLE CODE
        • T44.3X4D - Poisoning by oth parasympath and spasmolytics, undet, subs BILLABLE CODE
        • T44.3X4S - Poisn by oth parasympath and spasmolytics, undet, sequela BILLABLE CODE
        • T44.3X5 - Adverse effect of other parasympatholytics and spasmolytics NON-BILLABLE CODE
        • T44.3X5A - Adverse effect of parasympatholytics and spasmolytics, init BILLABLE CODE
        • T44.3X5D - Adverse effect of parasympatholytics and spasmolytics, subs BILLABLE CODE
        • T44.3X5S - Adverse effect of parasympath and spasmolytics, sequela BILLABLE CODE
        • T44.3X6 - Underdosing of other parasympatholytics and spasmolytics NON-BILLABLE CODE
        • T44.3X6A - Underdosing of oth parasympatholytics and spasmolytics, init BILLABLE CODE
        • T44.3X6D - Underdosing of oth parasympatholytics and spasmolytics, subs BILLABLE CODE
        • T44.3X6S - Underdosing of parasympatholytics and spasmolytics, sequela BILLABLE CODE
        • T44.4 - Predominantly alpha-adrenoreceptor agonists NON-BILLABLE CODE
        • T44.4X - Predominantly alpha-adrenoreceptor agonists NON-BILLABLE CODE
        • T44.4X1 - Poisoning by predom alpha-adrenocpt agonists, accidental NON-BILLABLE CODE
        • T44.4X1A - Poisoning by predom alpha-adrenocpt agonists, acc, init BILLABLE CODE
        • T44.4X1D - Poisoning by predom alpha-adrenocpt agonists, acc, subs BILLABLE CODE
        • T44.4X1S - Poisoning by predom alpha-adrenocpt agonists, acc, sequela BILLABLE CODE
        • T44.4X2 - Poisoning by predom alpha-adrenocpt agonists, self-harm NON-BILLABLE CODE
        • T44.4X2A - Poisn by predom alpha-adrenocpt agonists, self-harm, init BILLABLE CODE
        • T44.4X2D - Poisn by predom alpha-adrenocpt agonists, self-harm, subs BILLABLE CODE
        • T44.4X2S - Poisn by predom alpha-adrenocpt agonists, self-harm, sequela BILLABLE CODE
        • T44.4X3 - Poisoning by predominantly alpha-adrenocpt agonists, assault NON-BILLABLE CODE
        • T44.4X3A - Poisoning by predom alpha-adrenocpt agonists, assault, init BILLABLE CODE
        • T44.4X3D - Poisoning by predom alpha-adrenocpt agonists, assault, subs BILLABLE CODE
        • T44.4X3S - Poisn by predom alpha-adrenocpt agonists, assault, sequela BILLABLE CODE
        • T44.4X4 - Poisoning by predom alpha-adrenocpt agonists, undetermined NON-BILLABLE CODE
        • T44.4X4A - Poisoning by predom alpha-adrenocpt agonists, undet, init BILLABLE CODE
        • T44.4X4D - Poisoning by predom alpha-adrenocpt agonists, undet, subs BILLABLE CODE
        • T44.4X4S - Poisoning by predom alpha-adrenocpt agonists, undet, sequela BILLABLE CODE
        • T44.4X5 - Adverse effect of predominantly alpha-adrenocpt agonists NON-BILLABLE CODE
        • T44.4X5A - Adverse effect of predom alpha-adrenocpt agonists, init BILLABLE CODE
        • T44.4X5D - Adverse effect of predom alpha-adrenocpt agonists, subs BILLABLE CODE
        • T44.4X5S - Adverse effect of predom alpha-adrenocpt agonists, sequela BILLABLE CODE
        • T44.4X6 - Underdosing of predominantly alpha-adrenoreceptor agonists NON-BILLABLE CODE
        • T44.4X6A - Underdosing of predominantly alpha-adrenocpt agonists, init BILLABLE CODE
        • T44.4X6D - Underdosing of predominantly alpha-adrenocpt agonists, subs BILLABLE CODE
        • T44.4X6S - Underdosing of predom alpha-adrenocpt agonists, sequela BILLABLE CODE
        • T44.5 - Predominantly beta-adrenoreceptor agonists NON-BILLABLE CODE
        • T44.5X - Predominantly beta-adrenoreceptor agonists NON-BILLABLE CODE
        • T44.5X1 - Poisoning by predom beta-adrenocpt agonists, accidental NON-BILLABLE CODE
        • T44.5X1A - Poisoning by predom beta-adrenocpt agonists, acc, init BILLABLE CODE
        • T44.5X1D - Poisoning by predom beta-adrenocpt agonists, acc, subs BILLABLE CODE
        • T44.5X1S - Poisoning by predom beta-adrenocpt agonists, acc, sequela BILLABLE CODE
        • T44.5X2 - Poisoning by predom beta-adrenocpt agonists, self-harm NON-BILLABLE CODE
        • T44.5X2A - Poisoning by predom beta-adrenocpt agonists, self-harm, init BILLABLE CODE
        • T44.5X2D - Poisoning by predom beta-adrenocpt agonists, self-harm, subs BILLABLE CODE
        • T44.5X2S - Poisn by predom beta-adrenocpt agonists, self-harm, sequela BILLABLE CODE
        • T44.5X3 - Poisoning by predominantly beta-adrenocpt agonists, assault NON-BILLABLE CODE
        • T44.5X3A - Poisoning by predom beta-adrenocpt agonists, assault, init BILLABLE CODE
        • T44.5X3D - Poisoning by predom beta-adrenocpt agonists, assault, subs BILLABLE CODE
        • T44.5X3S - Poisn by predom beta-adrenocpt agonists, assault, sequela BILLABLE CODE
        • T44.5X4 - Poisoning by predom beta-adrenocpt agonists, undetermined NON-BILLABLE CODE
        • T44.5X4A - Poisoning by predom beta-adrenocpt agonists, undet, init BILLABLE CODE
        • T44.5X4D - Poisoning by predom beta-adrenocpt agonists, undet, subs BILLABLE CODE
        • T44.5X4S - Poisoning by predom beta-adrenocpt agonists, undet, sequela BILLABLE CODE
        • T44.5X5 - Adverse effect of predominantly beta-adrenoreceptor agonists NON-BILLABLE CODE
        • T44.5X5A - Adverse effect of predom beta-adrenocpt agonists, init BILLABLE CODE
        • T44.5X5D - Adverse effect of predom beta-adrenocpt agonists, subs BILLABLE CODE
        • T44.5X5S - Adverse effect of predom beta-adrenocpt agonists, sequela BILLABLE CODE
        • T44.5X6 - Underdosing of predominantly beta-adrenoreceptor agonists NON-BILLABLE CODE
        • T44.5X6A - Underdosing of predominantly beta-adrenocpt agonists, init BILLABLE CODE
        • T44.5X6D - Underdosing of predominantly beta-adrenocpt agonists, subs BILLABLE CODE
        • T44.5X6S - Underdosing of predom beta-adrenocpt agonists, sequela BILLABLE CODE
        • T44.6 - Alpha-adrenoreceptor antagonists NON-BILLABLE CODE
        • T44.6X - Alpha-adrenoreceptor antagonists NON-BILLABLE CODE
        • T44.6X1 - Poisoning by alpha-adrenocpt antagonists, accidental NON-BILLABLE CODE
        • T44.6X1A - Poisoning by alpha-adrenocpt antagonists, accidental, init BILLABLE CODE
        • T44.6X1D - Poisoning by alpha-adrenocpt antagonists, accidental, subs BILLABLE CODE
        • T44.6X1S - Poisoning by alpha-adrenocpt antag, accidental, sequela BILLABLE CODE
        • T44.6X2 - Poisoning by alpha-adrenoreceptor antagonists, self-harm NON-BILLABLE CODE
        • T44.6X2A - Poisoning by alpha-adrenocpt antagonists, self-harm, init BILLABLE CODE
        • T44.6X2D - Poisoning by alpha-adrenocpt antagonists, self-harm, subs BILLABLE CODE
        • T44.6X2S - Poisoning by alpha-adrenocpt antagonists, self-harm, sequela BILLABLE CODE
        • T44.6X3 - Poisoning by alpha-adrenoreceptor antagonists, assault NON-BILLABLE CODE
        • T44.6X3A - Poisoning by alpha-adrenoreceptor antagonists, assault, init BILLABLE CODE
        • T44.6X3D - Poisoning by alpha-adrenoreceptor antagonists, assault, subs BILLABLE CODE
        • T44.6X3S - Poisoning by alpha-adrenocpt antagonists, assault, sequela BILLABLE CODE
        • T44.6X4 - Poisoning by alpha-adrenoreceptor antagonists, undetermined NON-BILLABLE CODE
        • T44.6X4A - Poisoning by alpha-adrenocpt antagonists, undetermined, init BILLABLE CODE
        • T44.6X4D - Poisoning by alpha-adrenocpt antagonists, undetermined, subs BILLABLE CODE
        • T44.6X4S - Poisoning by alpha-adrenocpt antagonists, undet, sequela BILLABLE CODE
        • T44.6X5 - Adverse effect of alpha-adrenoreceptor antagonists NON-BILLABLE CODE
        • T44.6X5A - Adverse effect of alpha-adrenoreceptor antagonists, init BILLABLE CODE
        • T44.6X5D - Adverse effect of alpha-adrenoreceptor antagonists, subs BILLABLE CODE
        • T44.6X5S - Adverse effect of alpha-adrenoreceptor antagonists, sequela BILLABLE CODE
        • T44.6X6 - Underdosing of alpha-adrenoreceptor antagonists NON-BILLABLE CODE
        • T44.6X6A - Underdosing of alpha-adrenoreceptor antagonists, init encntr BILLABLE CODE
        • T44.6X6D - Underdosing of alpha-adrenoreceptor antagonists, subs encntr BILLABLE CODE
        • T44.6X6S - Underdosing of alpha-adrenoreceptor antagonists, sequela BILLABLE CODE
        • T44.7 - Beta-adrenoreceptor antagonists NON-BILLABLE CODE
        • T44.7X - Beta-adrenoreceptor antagonists NON-BILLABLE CODE
        • T44.7X1 - Poisoning by beta-adrenocpt antagonists, accidental NON-BILLABLE CODE
        • T44.7X1A - Poisoning by beta-adrenocpt antagonists, accidental, init BILLABLE CODE
        • T44.7X1D - Poisoning by beta-adrenocpt antagonists, accidental, subs BILLABLE CODE
        • T44.7X1S - Poisoning by beta-adrenocpt antag, accidental, sequela BILLABLE CODE
        • T44.7X2 - Poisoning by beta-adrenoreceptor antagonists, self-harm NON-BILLABLE CODE
        • T44.7X2A - Poisoning by beta-adrenocpt antagonists, self-harm, init BILLABLE CODE
        • T44.7X2D - Poisoning by beta-adrenocpt antagonists, self-harm, subs BILLABLE CODE
        • T44.7X2S - Poisoning by beta-adrenocpt antagonists, self-harm, sequela BILLABLE CODE
        • T44.7X3 - Poisoning by beta-adrenoreceptor antagonists, assault NON-BILLABLE CODE
        • T44.7X3A - Poisoning by beta-adrenoreceptor antagonists, assault, init BILLABLE CODE
        • T44.7X3D - Poisoning by beta-adrenoreceptor antagonists, assault, subs BILLABLE CODE
        • T44.7X3S - Poisoning by beta-adrenocpt antagonists, assault, sequela BILLABLE CODE
        • T44.7X4 - Poisoning by beta-adrenoreceptor antagonists, undetermined NON-BILLABLE CODE
        • T44.7X4A - Poisoning by beta-adrenocpt antagonists, undetermined, init BILLABLE CODE
        • T44.7X4D - Poisoning by beta-adrenocpt antagonists, undetermined, subs BILLABLE CODE
        • T44.7X4S - Poisoning by beta-adrenocpt antagonists, undet, sequela BILLABLE CODE
        • T44.7X5 - Adverse effect of beta-adrenoreceptor antagonists NON-BILLABLE CODE
        • T44.7X5A - Adverse effect of beta-adrenoreceptor antagonists, init BILLABLE CODE
        • T44.7X5D - Adverse effect of beta-adrenoreceptor antagonists, subs BILLABLE CODE
        • T44.7X5S - Adverse effect of beta-adrenoreceptor antagonists, sequela BILLABLE CODE
        • T44.7X6 - Underdosing of beta-adrenoreceptor antagonists NON-BILLABLE CODE
        • T44.7X6A - Underdosing of beta-adrenoreceptor antagonists, init encntr BILLABLE CODE
        • T44.7X6D - Underdosing of beta-adrenoreceptor antagonists, subs encntr BILLABLE CODE
        • T44.7X6S - Underdosing of beta-adrenoreceptor antagonists, sequela BILLABLE CODE
        • T44.8 - Centrally-acting and adrenergic-neuron- blocking agents NON-BILLABLE CODE
        • T44.8X - Centrally-acting and adrenergic- neuron-blocking agents NON-BILLABLE CODE
        • T44.8X1 - Poisoning by centr-acting/adren-neurn-block agnt, acc NON-BILLABLE CODE
        • T44.8X1A - Poisoning by centr-acting/adren-neurn-block agnt, acc, init BILLABLE CODE
        • T44.8X1D - Poisoning by centr-acting/adren-neurn-block agnt, acc, subs BILLABLE CODE
        • T44.8X1S - Poisn by centr-acting/adren-neurn-block agnt, acc, sequela BILLABLE CODE
        • T44.8X2 - Poisoning by centr-acting/adren-neurn-block agnt, self-harm NON-BILLABLE CODE
        • T44.8X2A - Poisn by centr-acting/adren-neurn-block agnt, slf-hrm, init BILLABLE CODE
        • T44.8X2D - Poisn by centr-acting/adren-neurn-block agnt, slf-hrm, subs BILLABLE CODE
        • T44.8X2S - Poisn by centr-acting/adren-neurn-block agnt, slf-hrm, sqla BILLABLE CODE
        • T44.8X3 - Poisoning by centr-acting/adren-neurn-block agnt, assault NON-BILLABLE CODE
        • T44.8X3A - Poisn by centr-acting/adren-neurn-block agnt, assault, init BILLABLE CODE
        • T44.8X3D - Poisn by centr-acting/adren-neurn-block agnt, assault, subs BILLABLE CODE
        • T44.8X3S - Poisn by centr-acting/adren-neurn-block agnt, asslt, sequela BILLABLE CODE
        • T44.8X4 - Poisoning by centr-acting/adren-neurn-block agnt, undet NON-BILLABLE CODE
        • T44.8X4A - Poisn by centr-acting/adren-neurn-block agnt, undet, init BILLABLE CODE
        • T44.8X4D - Poisn by centr-acting/adren-neurn-block agnt, undet, subs BILLABLE CODE
        • T44.8X4S - Poisn by centr-acting/adren-neurn-block agnt, undet, sequela BILLABLE CODE
        • T44.8X5 - Adverse effect of centr-acting/adren-neurn-block agnt NON-BILLABLE CODE
        • T44.8X5A - Adverse effect of centr-acting/adren-neurn-block agnt, init BILLABLE CODE
        • T44.8X5D - Adverse effect of centr-acting/adren-neurn-block agnt, subs BILLABLE CODE
        • T44.8X5S - Advrs effect of centr-acting/adren-neurn-block agnt, sequela BILLABLE CODE
        • T44.8X6 - Underdosing of centr-acting/adren-neurn-block agnt NON-BILLABLE CODE
        • T44.8X6A - Underdosing of centr-acting/adren-neurn-block agnt, init BILLABLE CODE
        • T44.8X6D - Underdosing of centr-acting/adren-neurn-block agnt, subs BILLABLE CODE
        • T44.8X6S - Underdosing of centr-acting/adren-neurn-block agnt, sequela BILLABLE CODE
        • T44.9 - And unsp drugs aff the autonomic nervous system NON-BILLABLE CODE
        • T44.90 - Unsp drugs primarily affecting the autonomic nervous system NON-BILLABLE CODE
        • T44.901 - Poisoning by unsp drugs aff the autonomic nervous sys, acc NON-BILLABLE CODE
        • T44.901A - Poisn by unsp drugs aff the autonm nervous sys, acc, init BILLABLE CODE
        • T44.901D - Poisn by unsp drugs aff the autonm nervous sys, acc, subs BILLABLE CODE
        • T44.901S - Poisn by unsp drugs aff the autonm nrv sys, acc, sequela BILLABLE CODE
        • T44.902 - Poisn by unsp drugs aff the autonm nervous sys, self-harm NON-BILLABLE CODE
        • T44.902A - Poisn by unsp drugs aff the autonm nrv sys, slf-hrm, init BILLABLE CODE
        • T44.902D - Poisn by unsp drugs aff the autonm nrv sys, slf-hrm, subs BILLABLE CODE
        • T44.902S - Poisn by unsp drugs aff the autonm nrv sys, slf-hrm, sequela BILLABLE CODE
        • T44.903 - Poisoning by unsp drugs aff the autonm nervous sys, assault NON-BILLABLE CODE
        • T44.903A - Poisn by unsp drugs aff the autonm nervous sys, asslt, init BILLABLE CODE
        • T44.903D - Poisn by unsp drugs aff the autonm nervous sys, asslt, subs BILLABLE CODE
        • T44.903S - Poisn by unsp drugs aff the autonm nrv sys, asslt, sequela BILLABLE CODE
        • T44.904 - Poisoning by unsp drugs aff the autonomic nervous sys, undet NON-BILLABLE CODE
        • T44.904A - Poisn by unsp drugs aff the autonm nervous sys, undet, init BILLABLE CODE
        • T44.904D - Poisn by unsp drugs aff the autonm nervous sys, undet, subs BILLABLE CODE
        • T44.904S - Poisn by unsp drugs aff the autonm nrv sys, undet, sequela BILLABLE CODE
        • T44.905 - Adverse effect of unsp drugs aff the autonomic nervous sys NON-BILLABLE CODE
        • T44.905A - Advrs effect of unsp drugs aff the autonm nervous sys, init BILLABLE CODE
        • T44.905D - Advrs effect of unsp drugs aff the autonm nervous sys, subs BILLABLE CODE
        • T44.905S - Advrs effect of unsp drugs aff the autonm nrv sys, sequela BILLABLE CODE
        • T44.906 - Underdosing of unsp drugs aff the autonomic nervous system NON-BILLABLE CODE
        • T44.906A - Undrdose of unsp drugs aff the autonomic nervous sys, init BILLABLE CODE
        • T44.906D - Undrdose of unsp drugs aff the autonomic nervous sys, subs BILLABLE CODE
        • T44.906S - Undrdose of unsp drugs aff the autonm nervous sys, sequela BILLABLE CODE
        • T44.99 - Drugs primarily affecting the autonomic nervous system NON-BILLABLE CODE
        • T44.991 - Poisoning by oth drug aff the autonomic nervous sys, acc NON-BILLABLE CODE
        • T44.991A - Poisoning by oth drug aff the autonm nervous sys, acc, init BILLABLE CODE
        • T44.991D - Poisoning by oth drug aff the autonm nervous sys, acc, subs BILLABLE CODE
        • T44.991S - Poisn by oth drug aff the autonm nervous sys, acc, sequela BILLABLE CODE
        • T44.992 - Poisoning by oth drug aff the autonm nervous sys, self-harm NON-BILLABLE CODE
        • T44.992A - Poisn by oth drug aff the autonm nervous sys, slf-hrm, init BILLABLE CODE
        • T44.992D - Poisn by oth drug aff the autonm nervous sys, slf-hrm, subs BILLABLE CODE
        • T44.992S - Poisn by oth drug aff the autonm nrv sys, slf-hrm, sequela BILLABLE CODE
        • T44.993 - Poisoning by oth drug aff the autonomic nervous sys, assault NON-BILLABLE CODE
        • T44.993A - Poisn by oth drug aff the autonm nervous sys, assault, init BILLABLE CODE
        • T44.993D - Poisn by oth drug aff the autonm nervous sys, assault, subs BILLABLE CODE
        • T44.993S - Poisn by oth drug aff the autonm nervous sys, asslt, sequela BILLABLE CODE
        • T44.994 - Poisoning by oth drug aff the autonomic nervous sys, undet NON-BILLABLE CODE
        • T44.994A - Poisn by oth drug aff the autonm nervous sys, undet, init BILLABLE CODE
        • T44.994D - Poisn by oth drug aff the autonm nervous sys, undet, subs BILLABLE CODE
        • T44.994S - Poisn by oth drug aff the autonm nervous sys, undet, sequela BILLABLE CODE
        • T44.995 - Adverse effect of drug aff the autonomic nervous system NON-BILLABLE CODE
        • T44.995A - Adverse effect of drug aff the autonomic nervous sys, init BILLABLE CODE
        • T44.995D - Adverse effect of drug aff the autonomic nervous sys, subs BILLABLE CODE
        • T44.995S - Adverse effect of drug aff the autonm nervous sys, sequela BILLABLE CODE
        • T44.996 - Underdosing of drug aff the autonomic nervous system NON-BILLABLE CODE
        • T44.996A - Underdosing of drug aff the autonomic nervous system, init BILLABLE CODE
        • T44.996D - Underdosing of drug aff the autonomic nervous system, subs BILLABLE CODE
        • T44.996S - Underdosing of drug aff the autonomic nervous sys, sequela BILLABLE CODE

Clinical Information for Drugs primarily affecting the autonomic nervous system (T44)

Parasympathomimetics - Drugs that mimic the effects of parasympathetic nervous system activity. Included here are drugs that directly stimulate muscarinic receptors and drugs that potentiate cholinergic activity, usually by slowing the breakdown of acetylcholine (CHOLINESTERASE INHIBITORS). Drugs that stimulate both sympathetic and parasympathetic postganglionic neurons (GANGLIONIC STIMULANTS) are not included here.

Parasympathomimetics - Drugs that mimic the effects of parasympathetic nervous system activity. Included here are drugs that directly stimulate muscarinic receptors and drugs that potentiate cholinergic activity, usually by slowing the breakdown of acetylcholine (CHOLINESTERASE INHIBITORS). Drugs that stimulate both sympathetic and parasympathetic postganglionic neurons (GANGLIONIC STIMULANTS) are not included here.

Instructional Notations

7th Character Note 7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.

• The appropriate 7th character is to be added to each code from category T44

7th Character 7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.

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