2025 Drugs Underdosing ICD-10-CM Codes

The 2025 Underdosing ICD-10-CM Codes list includes 516 codes for situations where a patient takes less of a prescribed drug or substance than ordered, potentially resulting in suboptimal treatment or complications. Underdosing may occur due to financial limitations, misunderstanding of instructions, or intentional avoidance of medication. Coders must ensure documentation clearly identifies underdosing and select the appropriate code from the ICD-10-CM List of Drugs and Chemicals. No external cause code is required. Accurate coding supports proper claims adjudication and clinical tracking.

  • T48.0X6 - Underdosing of oxytocic drugs Non-Billable

  • T48.0X6A - Underdosing of oxytocic drugs, initial encounter Billable

  • T48.0X6D - Underdosing of oxytocic drugs, subsequent encounter Billable

  • T48.1X6 - Underdosing of skeletal muscle relaxants [neuromuscular blocking agents] Non-Billable

  • T48.1X6A - Underdosing of skeletal muscle relaxants [neuromuscular blocking agents], initial encounter Billable

  • T48.1X6D - Underdosing of skeletal muscle relaxants [neuromuscular blocking agents], subsequent encounter Billable

  • T48.206 - Underdosing of unspecified drugs acting on muscles Non-Billable

  • T48.206A - Underdosing of unspecified drugs acting on muscles, initial encounter Billable

  • T48.206D - Underdosing of unspecified drugs acting on muscles, subsequent encounter Billable

  • T48.296 - Underdosing of other drugs acting on muscles Non-Billable

  • T48.296A - Underdosing of other drugs acting on muscles, initial encounter Billable

  • T48.296D - Underdosing of other drugs acting on muscles, subsequent encounter Billable

  • T48.3X6 - Underdosing of antitussives Non-Billable

  • T48.3X6A - Underdosing of antitussives, initial encounter Billable

  • T48.3X6D - Underdosing of antitussives, subsequent encounter Billable

  • T48.4X6 - Underdosing of expectorants Non-Billable

  • T48.4X6A - Underdosing of expectorants, initial encounter Billable

  • T48.4X6D - Underdosing of expectorants, subsequent encounter Billable

  • T48.5X6 - Underdosing of other anti-common-cold drugs Non-Billable

  • T48.5X6A - Underdosing of other anti-common-cold drugs, initial encounter Billable

  • T48.5X6D - Underdosing of other anti-common-cold drugs, subsequent encounter Billable

  • T48.6X6 - Underdosing of antiasthmatics Non-Billable

  • T48.6X6A - Underdosing of antiasthmatics, initial encounter Billable

  • T48.6X6D - Underdosing of antiasthmatics, subsequent encounter Billable

  • T48.906 - Underdosing of unspecified agents primarily acting on the respiratory system Non-Billable

  • T48.906A - Underdosing of unspecified agents primarily acting on the respiratory system, initial encounter Billable

  • T48.906D - Underdosing of unspecified agents primarily acting on the respiratory system, subsequent encounter Billable

  • T48.996A - Underdosing of other agents primarily acting on the respiratory system, initial encounter Billable

  • T48.996D - Underdosing of other agents primarily acting on the respiratory system, subsequent encounter Billable

  • T46.0X6 - Underdosing of cardiac-stimulant glycosides and drugs of similar action Non-Billable

  • T46.0X6A - Underdosing of cardiac-stimulant glycosides and drugs of similar action, initial encounter Billable

  • T46.0X6D - Underdosing of cardiac-stimulant glycosides and drugs of similar action, subsequent encounter Billable

  • T46.1X6 - Underdosing of calcium-channel blockers Non-Billable

  • T46.1X6A - Underdosing of calcium-channel blockers, initial encounter Billable

  • T46.1X6D - Underdosing of calcium-channel blockers, subsequent encounter Billable

  • T46.2X6 - Underdosing of other antidysrhythmic drugs Non-Billable

  • T46.2X6A - Underdosing of other antidysrhythmic drugs, initial encounter Billable

  • T46.2X6D - Underdosing of other antidysrhythmic drugs, subsequent encounter Billable

  • T46.3X6 - Underdosing of coronary vasodilators Non-Billable

  • T46.3X6A - Underdosing of coronary vasodilators, initial encounter Billable

  • T46.3X6D - Underdosing of coronary vasodilators, subsequent encounter Billable

  • T46.4X6 - Underdosing of angiotensin-converting-enzyme inhibitors Non-Billable

  • T46.4X6A - Underdosing of angiotensin-converting-enzyme inhibitors, initial encounter Billable

  • T46.4X6D - Underdosing of angiotensin-converting-enzyme inhibitors, subsequent encounter Billable

  • T46.5X6 - Underdosing of other antihypertensive drugs Non-Billable

  • T46.5X6A - Underdosing of other antihypertensive drugs, initial encounter Billable

  • T46.5X6D - Underdosing of other antihypertensive drugs, subsequent encounter Billable

  • T46.6X6 - Underdosing of antihyperlipidemic and antiarteriosclerotic drugs Non-Billable

  • T46.6X6A - Underdosing of antihyperlipidemic and antiarteriosclerotic drugs, initial encounter Billable

  • T46.6X6D - Underdosing of antihyperlipidemic and antiarteriosclerotic drugs, subsequent encounter Billable

  • T46.7X6 - Underdosing of peripheral vasodilators Non-Billable

  • T46.7X6A - Underdosing of peripheral vasodilators, initial encounter Billable

  • T46.7X6D - Underdosing of peripheral vasodilators, subsequent encounter Billable

  • T46.8X6 - Underdosing of antivaricose drugs, including sclerosing agents Non-Billable

  • T46.8X6A - Underdosing of antivaricose drugs, including sclerosing agents, initial encounter Billable

  • T46.8X6D - Underdosing of antivaricose drugs, including sclerosing agents, subsequent encounter Billable

  • T46.906 - Underdosing of unspecified agents primarily affecting the cardiovascular system Non-Billable

  • T46.906A - Underdosing of unspecified agents primarily affecting the cardiovascular system, initial encounter Billable

  • T46.906D - Underdosing of unspecified agents primarily affecting the cardiovascular system, subsequent encounter Billable

  • T46.996 - Underdosing of other agents primarily affecting the cardiovascular system Non-Billable

  • T46.996A - Underdosing of other agents primarily affecting the cardiovascular system, initial encounter Billable

  • T46.996D - Underdosing of other agents primarily affecting the cardiovascular system, subsequent encounter Billable

  • T47.0X6 - Underdosing of histamine H2-receptor blockers Non-Billable

  • T47.0X6A - Underdosing of histamine H2-receptor blockers, initial encounter Billable

  • T47.0X6D - Underdosing of histamine H2-receptor blockers, subsequent encounter Billable

  • T47.1X6 - Underdosing of other antacids and anti-gastric-secretion drugs Non-Billable

  • T47.1X6A - Underdosing of other antacids and anti-gastric-secretion drugs, initial encounter Billable

  • T47.1X6D - Underdosing of other antacids and anti-gastric-secretion drugs, subsequent encounter Billable

  • T47.2X6 - Underdosing of stimulant laxatives Non-Billable

  • T47.2X6A - Underdosing of stimulant laxatives, initial encounter Billable

  • T47.2X6D - Underdosing of stimulant laxatives, subsequent encounter Billable

  • T47.3X6 - Underdosing of saline and osmotic laxatives Non-Billable

  • T47.3X6A - Underdosing of saline and osmotic laxatives, initial encounter Billable

  • T47.3X6D - Underdosing of saline and osmotic laxatives, subsequent encounter Billable

  • T47.4X6 - Underdosing of other laxatives Non-Billable

  • T47.4X6A - Underdosing of other laxatives, initial encounter Billable

  • T47.4X6D - Underdosing of other laxatives, subsequent encounter Billable

  • T47.5X6 - Underdosing of digestants Non-Billable

  • T47.5X6A - Underdosing of digestants, initial encounter Billable

  • T47.5X6D - Underdosing of digestants, subsequent encounter Billable

  • T47.6X6 - Underdosing of antidiarrheal drugs Non-Billable

  • T47.6X6A - Underdosing of antidiarrheal drugs, initial encounter Billable

  • T47.6X6D - Underdosing of antidiarrheal drugs, subsequent encounter Billable

  • T47.7X6 - Underdosing of emetics Non-Billable

  • T47.7X6A - Underdosing of emetics, initial encounter Billable

  • T47.7X6D - Underdosing of emetics, subsequent encounter Billable

  • T47.8X6 - Underdosing of other agents primarily affecting gastrointestinal system Non-Billable

  • T47.8X6A - Underdosing of other agents primarily affecting gastrointestinal system, initial encounter Billable

  • T47.8X6D - Underdosing of other agents primarily affecting gastrointestinal system, subsequent encounter Billable

  • T47.96 - Underdosing of unspecified agents primarily affecting the gastrointestinal system Non-Billable

  • T47.96XA - Underdosing of unspecified agents primarily affecting the gastrointestinal system, initial encounter Billable

  • T47.96XD - Underdosing of unspecified agents primarily affecting the gastrointestinal system, subsequent encounter Billable

  • T41.0X6 - Underdosing of inhaled anesthetics Non-Billable

  • T41.0X6A - Underdosing of inhaled anesthetics, initial encounter Billable

  • T41.0X6D - Underdosing of inhaled anesthetics, subsequent encounter Billable

  • T41.1X6 - Underdosing of intravenous anesthetics Non-Billable

  • T41.1X6A - Underdosing of intravenous anesthetics, initial encounter Billable

  • T41.1X6D - Underdosing of intravenous anesthetics, subsequent encounter Billable

  • T41.206 - Underdosing of unspecified general anesthetics Non-Billable

  • T41.206A - Underdosing of unspecified general anesthetics, initial encounter Billable

  • T41.206D - Underdosing of unspecified general anesthetics, subsequent encounter Billable

  • T41.296 - Underdosing of other general anesthetics Non-Billable

  • T41.296A - Underdosing of other general anesthetics, initial encounter Billable

  • T41.296D - Underdosing of other general anesthetics, subsequent encounter Billable

  • T41.3X6 - Underdosing of local anesthetics Non-Billable

  • T41.3X6A - Underdosing of local anesthetics, initial encounter Billable

  • T41.3X6D - Underdosing of local anesthetics, subsequent encounter Billable

  • T41.46 - Underdosing of unspecified anesthetics Non-Billable

  • T41.46XA - Underdosing of unspecified anesthetics, initial encounter Billable

  • T41.46XD - Underdosing of unspecified anesthetics, subsequent encounter Billable

  • T41.5X6 - Underdosing of therapeutic gases Non-Billable

  • T41.5X6A - Underdosing of therapeutic gases, initial encounter Billable

  • T41.5X6D - Underdosing of therapeutic gases, subsequent encounter Billable

  • T42.0X6 - Underdosing of hydantoin derivatives Non-Billable

  • T42.0X6A - Underdosing of hydantoin derivatives, initial encounter Billable

  • T42.0X6D - Underdosing of hydantoin derivatives, subsequent encounter Billable

  • T42.1X6 - Underdosing of iminostilbenes Non-Billable

  • T42.1X6A - Underdosing of iminostilbenes, initial encounter Billable

  • T42.1X6D - Underdosing of iminostilbenes, subsequent encounter Billable

  • T42.2X6 - Underdosing of succinimides and oxazolidinediones Non-Billable

  • T42.2X6A - Underdosing of succinimides and oxazolidinediones, initial encounter Billable

  • T42.2X6D - Underdosing of succinimides and oxazolidinediones, subsequent encounter Billable

  • T42.3X6 - Underdosing of barbiturates Non-Billable

  • T42.3X6A - Underdosing of barbiturates, initial encounter Billable

  • T42.3X6D - Underdosing of barbiturates, subsequent encounter Billable

  • T42.4X6 - Underdosing of benzodiazepines Non-Billable

  • T42.4X6A - Underdosing of benzodiazepines, initial encounter Billable

  • T42.4X6D - Underdosing of benzodiazepines, subsequent encounter Billable

  • T42.5X6A - Underdosing of mixed antiepileptics, initial encounter Billable

  • T42.5X6D - Underdosing of mixed antiepileptics, subsequent encounter Billable

  • T42.6X6 - Underdosing of other antiepileptic and sedative-hypnotic drugs Non-Billable

  • T42.6X6A - Underdosing of other antiepileptic and sedative-hypnotic drugs, initial encounter Billable

  • T42.6X6D - Underdosing of other antiepileptic and sedative-hypnotic drugs, subsequent encounter Billable

  • T42.76 - Underdosing of unspecified antiepileptic and sedative-hypnotic drugs Non-Billable

  • T42.76XA - Underdosing of unspecified antiepileptic and sedative-hypnotic drugs, initial encounter Billable

  • T42.76XD - Underdosing of unspecified antiepileptic and sedative-hypnotic drugs, subsequent encounter Billable

  • T42.8X6 - Underdosing of antiparkinsonism drugs and other central muscle-tone depressants Non-Billable

  • T42.8X6A - Underdosing of antiparkinsonism drugs and other central muscle-tone depressants, initial encounter Billable

  • T42.8X6D - Underdosing of antiparkinsonism drugs and other central muscle-tone depressants, subsequent encounter Billable

  • T50.0X6 - Underdosing of mineralocorticoids and their antagonists Non-Billable

  • T50.0X6A - Underdosing of mineralocorticoids and their antagonists, initial encounter Billable

  • T50.0X6D - Underdosing of mineralocorticoids and their antagonists, subsequent encounter Billable

  • T50.1X6 - Underdosing of loop [high-ceiling] diuretics Non-Billable

  • T50.1X6A - Underdosing of loop [high-ceiling] diuretics, initial encounter Billable

  • T50.1X6D - Underdosing of loop [high-ceiling] diuretics, subsequent encounter Billable

  • T50.2X6 - Underdosing of carbonic-anhydrase inhibitors, benzothiadiazides and other diuretics Non-Billable

  • T50.2X6A - Underdosing of carbonic-anhydrase inhibitors, benzothiadiazides and other diuretics, initial encounter Billable

  • T50.2X6D - Underdosing of carbonic-anhydrase inhibitors, benzothiadiazides and other diuretics, subsequent encounter Billable

  • T50.3X6 - Underdosing of electrolytic, caloric and water-balance agents Non-Billable

  • T50.3X6A - Underdosing of electrolytic, caloric and water-balance agents, initial encounter Billable

  • T50.3X6D - Underdosing of electrolytic, caloric and water-balance agents, subsequent encounter Billable

  • T50.4X6 - Underdosing of drugs affecting uric acid metabolism Non-Billable

  • T50.4X6A - Underdosing of drugs affecting uric acid metabolism, initial encounter Billable

  • T50.4X6D - Underdosing of drugs affecting uric acid metabolism, subsequent encounter Billable

  • T50.5X6 - Underdosing of appetite depressants Non-Billable

  • T50.5X6A - Underdosing of appetite depressants, initial encounter Billable

  • T50.5X6D - Underdosing of appetite depressants, subsequent encounter Billable

  • T50.6X6 - Underdosing of antidotes and chelating agents Non-Billable

  • T50.6X6A - Underdosing of antidotes and chelating agents, initial encounter Billable

  • T50.6X6D - Underdosing of antidotes and chelating agents, subsequent encounter Billable

  • T50.7X6 - Underdosing of analeptics and opioid receptor antagonists Non-Billable

  • T50.7X6A - Underdosing of analeptics and opioid receptor antagonists, initial encounter Billable

  • T50.7X6D - Underdosing of analeptics and opioid receptor antagonists, subsequent encounter Billable

  • T50.8X6 - Underdosing of diagnostic agents Non-Billable

  • T50.8X6A - Underdosing of diagnostic agents, initial encounter Billable

  • T50.8X6D - Underdosing of diagnostic agents, subsequent encounter Billable

  • T50.906 - Underdosing of unspecified drugs, medicaments and biological substances Non-Billable

  • T50.906A - Underdosing of unspecified drugs, medicaments and biological substances, initial encounter Billable

  • T50.906D - Underdosing of unspecified drugs, medicaments and biological substances, subsequent encounter Billable

  • T50.916 - Underdosing of multiple unspecified drugs, medicaments and biological substances Non-Billable

  • T50.916A - Underdosing of multiple unspecified drugs, medicaments and biological substances, initial encounter Billable

  • T50.916D - Underdosing of multiple unspecified drugs, medicaments and biological substances, subsequent encounter Billable

  • T50.996 - Underdosing of other drugs, medicaments and biological substances Non-Billable

  • T50.996A - Underdosing of other drugs, medicaments and biological substances, initial encounter Billable

  • T50.996D - Underdosing of other drugs, medicaments and biological substances, subsequent encounter Billable

  • T50.A16A - Underdosing of pertussis vaccine, including combinations with a pertussis component, initial encounter Billable

  • T50.A16D - Underdosing of pertussis vaccine, including combinations with a pertussis component, subsequent encounter Billable

  • T50.A26 - Underdosing of mixed bacterial vaccines without a pertussis component Non-Billable

  • T50.A26A - Underdosing of mixed bacterial vaccines without a pertussis component, initial encounter Billable

  • T44.0X6 - Underdosing of anticholinesterase agents Non-Billable

  • T44.0X6A - Underdosing of anticholinesterase agents, initial encounter Billable

  • T44.0X6D - Underdosing of anticholinesterase agents, subsequent encounter Billable

  • T44.1X6 - Underdosing of other parasympathomimetics [cholinergics] Non-Billable

  • T44.1X6A - Underdosing of other parasympathomimetics [cholinergics], initial encounter Billable

  • T44.1X6D - Underdosing of other parasympathomimetics [cholinergics], subsequent encounter Billable

  • T44.2X6 - Underdosing of ganglionic blocking drugs Non-Billable

  • T44.2X6A - Underdosing of ganglionic blocking drugs, initial encounter Billable

  • T44.2X6D - Underdosing of ganglionic blocking drugs, subsequent encounter Billable

  • T44.3X6 - Underdosing of other parasympatholytics [anticholinergics and antimuscarinics] and spasmolytics Non-Billable

  • T44.3X6A - Underdosing of other parasympatholytics [anticholinergics and antimuscarinics] and spasmolytics, initial encounter Billable

  • T44.3X6D - Underdosing of other parasympatholytics [anticholinergics and antimuscarinics] and spasmolytics, subsequent encounter Billable

  • T44.4X6 - Underdosing of predominantly alpha-adrenoreceptor agonists Non-Billable

  • T44.4X6A - Underdosing of predominantly alpha-adrenoreceptor agonists, initial encounter Billable

  • T44.4X6D - Underdosing of predominantly alpha-adrenoreceptor agonists, subsequent encounter Billable

  • T44.5X6 - Underdosing of predominantly beta-adrenoreceptor agonists Non-Billable

  • T44.5X6A - Underdosing of predominantly beta-adrenoreceptor agonists, initial encounter Billable

  • T44.5X6D - Underdosing of predominantly beta-adrenoreceptor agonists, subsequent encounter Billable

  • T44.6X6 - Underdosing of alpha-adrenoreceptor antagonists Non-Billable

  • T44.6X6A - Underdosing of alpha-adrenoreceptor antagonists, initial encounter Billable

  • T44.6X6D - Underdosing of alpha-adrenoreceptor antagonists, subsequent encounter Billable

  • T44.7X6 - Underdosing of beta-adrenoreceptor antagonists Non-Billable

  • T44.7X6A - Underdosing of beta-adrenoreceptor antagonists, initial encounter Billable

  • T44.7X6D - Underdosing of beta-adrenoreceptor antagonists, subsequent encounter Billable

  • T44.8X6 - Underdosing of centrally-acting and adrenergic-neuron-blocking agents Non-Billable

  • T44.8X6A - Underdosing of centrally-acting and adrenergic-neuron-blocking agents, initial encounter Billable

  • T44.8X6D - Underdosing of centrally-acting and adrenergic-neuron-blocking agents, subsequent encounter Billable

  • T44.906 - Underdosing of unspecified drugs primarily affecting the autonomic nervous system Non-Billable

  • T44.906A - Underdosing of unspecified drugs primarily affecting the autonomic nervous system, initial encounter Billable

  • T44.906D - Underdosing of unspecified drugs primarily affecting the autonomic nervous system, subsequent encounter Billable

  • T44.996 - Underdosing of other drug primarily affecting the autonomic nervous system Non-Billable

  • T44.996A - Underdosing of other drug primarily affecting the autonomic nervous system, initial encounter Billable

  • T44.996D - Underdosing of other drug primarily affecting the autonomic nervous system, subsequent encounter Billable

  • T38.0X6 - Underdosing of glucocorticoids and synthetic analogues Non-Billable

  • T38.0X6A - Underdosing of glucocorticoids and synthetic analogues, initial encounter Billable

  • T38.0X6D - Underdosing of glucocorticoids and synthetic analogues, subsequent encounter Billable

  • T38.1X6 - Underdosing of thyroid hormones and substitutes Non-Billable

  • T38.1X6A - Underdosing of thyroid hormones and substitutes, initial encounter Billable

  • T38.1X6D - Underdosing of thyroid hormones and substitutes, subsequent encounter Billable

  • T38.2X6 - Underdosing of antithyroid drugs Non-Billable

  • T38.2X6A - Underdosing of antithyroid drugs, initial encounter Billable

  • T38.2X6D - Underdosing of antithyroid drugs, subsequent encounter Billable

  • T38.3X6 - Underdosing of insulin and oral hypoglycemic [antidiabetic] drugs Non-Billable

  • T38.3X6A - Underdosing of insulin and oral hypoglycemic [antidiabetic] drugs, initial encounter Billable

  • T38.3X6D - Underdosing of insulin and oral hypoglycemic [antidiabetic] drugs, subsequent encounter Billable

  • T38.4X6 - Underdosing of oral contraceptives Non-Billable

  • T38.4X6A - Underdosing of oral contraceptives, initial encounter Billable

  • T38.4X6D - Underdosing of oral contraceptives, subsequent encounter Billable

  • T38.5X6 - Underdosing of other estrogens and progestogens Non-Billable

  • T38.5X6A - Underdosing of other estrogens and progestogens, initial encounter Billable

  • T38.5X6D - Underdosing of other estrogens and progestogens, subsequent encounter Billable

  • T38.6X6 - Underdosing of antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified Non-Billable

  • T38.6X6A - Underdosing of antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, initial encounter Billable

  • T38.6X6D - Underdosing of antigonadotrophins, antiestrogens, antiandrogens, not elsewhere classified, subsequent encounter Billable

  • T38.7X6 - Underdosing of androgens and anabolic congeners Non-Billable

  • T38.7X6A - Underdosing of androgens and anabolic congeners, initial encounter Billable

  • T38.7X6D - Underdosing of androgens and anabolic congeners, subsequent encounter Billable

  • T38.806 - Underdosing of unspecified hormones and synthetic substitutes Non-Billable

  • T38.806A - Underdosing of unspecified hormones and synthetic substitutes, initial encounter Billable

  • T38.806D - Underdosing of unspecified hormones and synthetic substitutes, subsequent encounter Billable

  • T38.816 - Underdosing of anterior pituitary [adenohypophyseal] hormones Non-Billable

  • T38.816A - Underdosing of anterior pituitary [adenohypophyseal] hormones, initial encounter Billable

  • T38.816D - Underdosing of anterior pituitary [adenohypophyseal] hormones, subsequent encounter Billable

  • T38.896 - Underdosing of other hormones and synthetic substitutes Non-Billable

  • T38.896A - Underdosing of other hormones and synthetic substitutes, initial encounter Billable

  • T38.896D - Underdosing of other hormones and synthetic substitutes, subsequent encounter Billable

  • T38.906 - Underdosing of unspecified hormone antagonists Non-Billable

  • T38.906A - Underdosing of unspecified hormone antagonists, initial encounter Billable

  • T38.906D - Underdosing of unspecified hormone antagonists, subsequent encounter Billable

  • T38.996 - Underdosing of other hormone antagonists Non-Billable

  • T38.996A - Underdosing of other hormone antagonists, initial encounter Billable

  • T38.996D - Underdosing of other hormone antagonists, subsequent encounter Billable

  • T40.0X6 - Underdosing of opium Non-Billable

  • T40.0X6A - Underdosing of opium, initial encounter Billable

  • T40.0X6D - Underdosing of opium, subsequent encounter Billable

  • T40.2X6 - Underdosing of other opioids Non-Billable

  • T40.2X6A - Underdosing of other opioids, initial encounter Billable

  • T40.2X6D - Underdosing of other opioids, subsequent encounter Billable

  • T40.3X6 - Underdosing of methadone Non-Billable

  • T40.3X6A - Underdosing of methadone, initial encounter Billable

  • T40.3X6D - Underdosing of methadone, subsequent encounter Billable

  • T40.416 - Underdosing of fentanyl or fentanyl analogs Non-Billable

  • T40.416A - Underdosing of fentanyl or fentanyl analogs, initial encounter Billable

  • T40.416D - Underdosing of fentanyl or fentanyl analogs, subsequent encounter Billable

  • T40.426 - Underdosing of tramadol Non-Billable

  • T40.426A - Underdosing of tramadol, initial encounter Billable

  • T40.426D - Underdosing of tramadol, subsequent encounter Billable

  • T40.496 - Underdosing of other synthetic narcotics Non-Billable

  • T40.496A - Underdosing of other synthetic narcotics, initial encounter Billable

  • T40.496D - Underdosing of other synthetic narcotics, subsequent encounter Billable

  • T40.5X6 - Underdosing of cocaine Non-Billable

  • T40.5X6A - Underdosing of cocaine, initial encounter Billable

  • T40.5X6D - Underdosing of cocaine, subsequent encounter Billable

  • T40.606 - Underdosing of unspecified narcotics Non-Billable

  • T40.606A - Underdosing of unspecified narcotics, initial encounter Billable

  • T40.606D - Underdosing of unspecified narcotics, subsequent encounter Billable

  • T40.696A - Underdosing of other narcotics, initial encounter Billable

  • T40.696D - Underdosing of other narcotics, subsequent encounter Billable

  • T40.716 - Underdosing of cannabis Non-Billable

  • T40.716A - Underdosing of cannabis, initial encounter Billable

  • T40.716D - Underdosing of cannabis, subsequent encounter Billable

  • T40.726 - Underdosing of synthetic cannabinoids Non-Billable

  • T40.726A - Underdosing of synthetic cannabinoids, initial encounter Billable

  • T40.726D - Underdosing of synthetic cannabinoids, subsequent encounter Billable

  • T40.906 - Underdosing of unspecified psychodysleptics [hallucinogens] Non-Billable

  • T40.906A - Underdosing of unspecified psychodysleptics [hallucinogens], initial encounter Billable

  • T40.906D - Underdosing of unspecified psychodysleptics [hallucinogens], subsequent encounter Billable

  • T40.996 - Underdosing of other psychodysleptics [hallucinogens] Non-Billable

  • T40.996A - Underdosing of other psychodysleptics [hallucinogens], initial encounter Billable

  • T40.996D - Underdosing of other psychodysleptics [hallucinogens], subsequent encounter Billable

  • T39.016 - Underdosing of aspirin Non-Billable

  • T39.016A - Underdosing of aspirin, initial encounter Billable

  • T39.016D - Underdosing of aspirin, subsequent encounter Billable

  • T39.096 - Underdosing of salicylates Non-Billable

  • T39.096A - Underdosing of salicylates, initial encounter Billable

  • T39.096D - Underdosing of salicylates, subsequent encounter Billable

  • T39.1X6 - Underdosing of 4-Aminophenol derivatives Non-Billable

  • T39.1X6A - Underdosing of 4-Aminophenol derivatives, initial encounter Billable

  • T39.1X6D - Underdosing of 4-Aminophenol derivatives, subsequent encounter Billable

  • T39.2X6 - Underdosing of pyrazolone derivatives Non-Billable

  • T39.2X6A - Underdosing of pyrazolone derivatives, initial encounter Billable

  • T39.2X6D - Underdosing of pyrazolone derivatives, subsequent encounter Billable

  • T39.316 - Underdosing of propionic acid derivatives Non-Billable

  • T39.316A - Underdosing of propionic acid derivatives, initial encounter Billable

  • T39.316D - Underdosing of propionic acid derivatives, subsequent encounter Billable

  • T39.396 - Underdosing of other nonsteroidal anti-inflammatory drugs [NSAID] Non-Billable

  • T39.396A - Underdosing of other nonsteroidal anti-inflammatory drugs [NSAID], initial encounter Billable

  • T39.396D - Underdosing of other nonsteroidal anti-inflammatory drugs [NSAID], subsequent encounter Billable

  • T39.4X6 - Underdosing of antirheumatics, not elsewhere classified Non-Billable

  • T39.4X6A - Underdosing of antirheumatics, not elsewhere classified, initial encounter Billable

  • T39.4X6D - Underdosing of antirheumatics, not elsewhere classified, subsequent encounter Billable

  • T39.8X6 - Underdosing of other nonopioid analgesics and antipyretics, not elsewhere classified Non-Billable

  • T39.8X6A - Underdosing of other nonopioid analgesics and antipyretics, not elsewhere classified, initial encounter Billable

  • T39.8X6D - Underdosing of other nonopioid analgesics and antipyretics, not elsewhere classified, subsequent encounter Billable

  • T39.96 - Underdosing of unspecified nonopioid analgesic, antipyretic and antirheumatic Non-Billable

  • T39.96XA - Underdosing of unspecified nonopioid analgesic, antipyretic and antirheumatic, initial encounter Billable

  • T39.96XD - Underdosing of unspecified nonopioid analgesic, antipyretic and antirheumatic, subsequent encounter Billable

  • T37.0X6 - Underdosing of sulfonamides Non-Billable

  • T37.0X6A - Underdosing of sulfonamides, initial encounter Billable

  • T37.0X6D - Underdosing of sulfonamides, subsequent encounter Billable

  • T37.1X6 - Underdosing of antimycobacterial drugs Non-Billable

  • T37.1X6A - Underdosing of antimycobacterial drugs, initial encounter Billable

  • T37.1X6D - Underdosing of antimycobacterial drugs, subsequent encounter Billable

  • T37.2X6 - Underdosing of antimalarials and drugs acting on other blood protozoa Non-Billable

  • T37.2X6A - Underdosing of antimalarials and drugs acting on other blood protozoa, initial encounter Billable

  • T37.2X6D - Underdosing of antimalarials and drugs acting on other blood protozoa, subsequent encounter Billable

  • T37.3X6 - Underdosing of other antiprotozoal drugs Non-Billable

  • T37.3X6A - Underdosing of other antiprotozoal drugs, initial encounter Billable

  • T37.3X6D - Underdosing of other antiprotozoal drugs, subsequent encounter Billable

  • T37.4X6 - Underdosing of anthelminthics Non-Billable

  • T37.4X6A - Underdosing of anthelminthics, initial encounter Billable

  • T37.4X6D - Underdosing of anthelminthics, subsequent encounter Billable

  • T37.5X6 - Underdosing of antiviral drugs Non-Billable

  • T37.5X6A - Underdosing of antiviral drugs, initial encounter Billable

  • T37.5X6D - Underdosing of antiviral drugs, subsequent encounter Billable

  • T37.8X6 - Underdosing of other specified systemic anti-infectives and antiparasitics Non-Billable

  • T37.8X6A - Underdosing of other specified systemic anti-infectives and antiparasitics, initial encounter Billable

  • T37.8X6D - Underdosing of other specified systemic anti-infectives and antiparasitics, subsequent encounter Billable

  • T37.96 - Underdosing of unspecified systemic anti-infectives and antiparasitics Non-Billable

  • T37.96XA - Underdosing of unspecified systemic anti-infectives and antiparasitics, initial encounter Billable

  • T37.96XD - Underdosing of unspecified systemic anti-infectives and antiparasitics, subsequent encounter Billable

  • T45.0X6 - Underdosing of antiallergic and antiemetic drugs Non-Billable

  • T45.0X6A - Underdosing of antiallergic and antiemetic drugs, initial encounter Billable

  • T45.0X6D - Underdosing of antiallergic and antiemetic drugs, subsequent encounter Billable

  • T45.1X6 - Underdosing of antineoplastic and immunosuppressive drugs Non-Billable

  • T45.1X6A - Underdosing of antineoplastic and immunosuppressive drugs, initial encounter Billable

  • T45.1X6D - Underdosing of antineoplastic and immunosuppressive drugs, subsequent encounter Billable

  • T45.2X6 - Underdosing of vitamins Non-Billable

  • T45.2X6A - Underdosing of vitamins, initial encounter Billable

  • T45.2X6D - Underdosing of vitamins, subsequent encounter Billable

  • T45.3X6 - Underdosing of enzymes Non-Billable

  • T45.3X6A - Underdosing of enzymes, initial encounter Billable

  • T45.3X6D - Underdosing of enzymes, subsequent encounter Billable

  • T45.4X6 - Underdosing of iron and its compounds Non-Billable

  • T45.4X6A - Underdosing of iron and its compounds, initial encounter Billable

  • T45.4X6D - Underdosing of iron and its compounds, subsequent encounter Billable

  • T45.516 - Underdosing of anticoagulants Non-Billable

  • T45.516A - Underdosing of anticoagulants, initial encounter Billable

  • T45.516D - Underdosing of anticoagulants, subsequent encounter Billable

  • T45.526 - Underdosing of antithrombotic drugs Non-Billable

  • T45.526A - Underdosing of antithrombotic drugs, initial encounter Billable

  • T45.526D - Underdosing of antithrombotic drugs, subsequent encounter Billable

  • T45.606 - Underdosing of unspecified fibrinolysis-affecting drugs Non-Billable

  • T45.606A - Underdosing of unspecified fibrinolysis-affecting drugs, initial encounter Billable

  • T45.606D - Underdosing of unspecified fibrinolysis-affecting drugs, subsequent encounter Billable

  • T45.616 - Underdosing of thrombolytic drugs Non-Billable

  • T45.616A - Underdosing of thrombolytic drugs, initial encounter Billable

  • T45.616D - Underdosing of thrombolytic drugs, subsequent encounter Billable

  • T45.626 - Underdosing of hemostatic drugs Non-Billable

  • T45.626A - Underdosing of hemostatic drugs, initial encounter Billable

  • T45.626D - Underdosing of hemostatic drugs, subsequent encounter Billable

  • T45.696 - Underdosing of other fibrinolysis-affecting drugs Non-Billable

  • T45.696A - Underdosing of other fibrinolysis-affecting drugs, initial encounter Billable

  • T45.696D - Underdosing of other fibrinolysis-affecting drugs, subsequent encounter Billable

  • T45.7X6 - Underdosing of anticoagulant antagonist, vitamin K and other coagulants Non-Billable

  • T45.7X6A - Underdosing of anticoagulant antagonist, vitamin K and other coagulants, initial encounter Billable

  • T45.7X6D - Underdosing of anticoagulant antagonist, vitamin K and other coagulants, subsequent encounter Billable

  • T45.8X6 - Underdosing of other primarily systemic and hematological agents Non-Billable

  • T45.8X6A - Underdosing of other primarily systemic and hematological agents, initial encounter Billable

  • T45.8X6D - Underdosing of other primarily systemic and hematological agents, subsequent encounter Billable

  • T45.96 - Underdosing of unspecified primarily systemic and hematological agent Non-Billable

  • T45.96XA - Underdosing of unspecified primarily systemic and hematological agent, initial encounter Billable

  • T45.96XD - Underdosing of unspecified primarily systemic and hematological agent, subsequent encounter Billable

  • T45.AX6 - Underdosing of immune checkpoint inhibitors and immunostimulant drugs Non-Billable

  • T43.016 - Underdosing of tricyclic antidepressants Non-Billable

  • T43.016A - Underdosing of tricyclic antidepressants, initial encounter Billable

  • T43.016D - Underdosing of tricyclic antidepressants, subsequent encounter Billable

  • T43.026 - Underdosing of tetracyclic antidepressants Non-Billable

  • T43.026A - Underdosing of tetracyclic antidepressants, initial encounter Billable

  • T43.026D - Underdosing of tetracyclic antidepressants, subsequent encounter Billable

  • T43.1X6 - Underdosing of monoamine-oxidase-inhibitor antidepressants Non-Billable

  • T43.1X6A - Underdosing of monoamine-oxidase-inhibitor antidepressants, initial encounter Billable

  • T43.1X6D - Underdosing of monoamine-oxidase-inhibitor antidepressants, subsequent encounter Billable

  • T43.206 - Underdosing of unspecified antidepressants Non-Billable

  • T43.206A - Underdosing of unspecified antidepressants, initial encounter Billable

  • T43.206D - Underdosing of unspecified antidepressants, subsequent encounter Billable

  • T43.216 - Underdosing of selective serotonin and norepinephrine reuptake inhibitors Non-Billable

  • T43.216A - Underdosing of selective serotonin and norepinephrine reuptake inhibitors, initial encounter Billable

  • T43.216D - Underdosing of selective serotonin and norepinephrine reuptake inhibitors, subsequent encounter Billable

  • T43.226 - Underdosing of selective serotonin reuptake inhibitors Non-Billable

  • T43.226A - Underdosing of selective serotonin reuptake inhibitors, initial encounter Billable

  • T43.226D - Underdosing of selective serotonin reuptake inhibitors, subsequent encounter Billable

  • T43.296 - Underdosing of other antidepressants Non-Billable

  • T43.296A - Underdosing of other antidepressants, initial encounter Billable

  • T43.296D - Underdosing of other antidepressants, subsequent encounter Billable

  • T43.3X6 - Underdosing of phenothiazine antipsychotics and neuroleptics Non-Billable

  • T43.3X6A - Underdosing of phenothiazine antipsychotics and neuroleptics, initial encounter Billable

  • T43.3X6D - Underdosing of phenothiazine antipsychotics and neuroleptics, subsequent encounter Billable

  • T43.4X6 - Underdosing of butyrophenone and thiothixene neuroleptics Non-Billable

  • T43.4X6A - Underdosing of butyrophenone and thiothixene neuroleptics, initial encounter Billable

  • T43.4X6D - Underdosing of butyrophenone and thiothixene neuroleptics, subsequent encounter Billable

  • T43.506 - Underdosing of unspecified antipsychotics and neuroleptics Non-Billable

  • T43.506A - Underdosing of unspecified antipsychotics and neuroleptics, initial encounter Billable

  • T43.506D - Underdosing of unspecified antipsychotics and neuroleptics, subsequent encounter Billable

  • T43.596 - Underdosing of other antipsychotics and neuroleptics Non-Billable

  • T43.596A - Underdosing of other antipsychotics and neuroleptics, initial encounter Billable

  • T43.596D - Underdosing of other antipsychotics and neuroleptics, subsequent encounter Billable

  • T43.606 - Underdosing of unspecified psychostimulants Non-Billable

  • T43.606A - Underdosing of unspecified psychostimulants, initial encounter Billable

  • T43.606D - Underdosing of unspecified psychostimulants, subsequent encounter Billable

  • T43.616 - Underdosing of caffeine Non-Billable

  • T43.616A - Underdosing of caffeine, initial encounter Billable

  • T43.616D - Underdosing of caffeine, subsequent encounter Billable

  • T43.626 - Underdosing of amphetamines Non-Billable

  • T43.626A - Underdosing of amphetamines, initial encounter Billable

  • T43.626D - Underdosing of amphetamines, subsequent encounter Billable

  • T43.636 - Underdosing of methylphenidate Non-Billable

  • T43.636A - Underdosing of methylphenidate, initial encounter Billable

  • T43.636D - Underdosing of methylphenidate, subsequent encounter Billable

  • T43.656 - Underdosing of methamphetamines Non-Billable

  • T43.656A - Underdosing of methamphetamines, initial encounter Billable

  • T43.656D - Underdosing of methamphetamines, subsequent encounter Billable

  • T43.696 - Underdosing of other psychostimulants Non-Billable

  • T43.696A - Underdosing of other psychostimulants, initial encounter Billable

  • T43.696D - Underdosing of other psychostimulants, subsequent encounter Billable

  • T43.8X6 - Underdosing of other psychotropic drugs Non-Billable

  • T43.8X6A - Underdosing of other psychotropic drugs, initial encounter Billable

  • T43.8X6D - Underdosing of other psychotropic drugs, subsequent encounter Billable

  • T43.96 - Underdosing of unspecified psychotropic drug Non-Billable

  • T43.96XA - Underdosing of unspecified psychotropic drug, initial encounter Billable

  • T43.96XD - Underdosing of unspecified psychotropic drug, subsequent encounter Billable

  • T36.0X6 - Underdosing of penicillins Non-Billable

  • T36.0X6A - Underdosing of penicillins, initial encounter Billable

  • T36.0X6D - Underdosing of penicillins, subsequent encounter Billable

  • T36.1X6 - Underdosing of cephalosporins and other beta-lactam antibiotics Non-Billable

  • T36.1X6A - Underdosing of cephalosporins and other beta-lactam antibiotics, initial encounter Billable

  • T36.1X6D - Underdosing of cephalosporins and other beta-lactam antibiotics, subsequent encounter Billable

  • T36.2X6 - Underdosing of chloramphenicol group Non-Billable

  • T36.2X6A - Underdosing of chloramphenicol group, initial encounter Billable

  • T36.2X6D - Underdosing of chloramphenicol group, subsequent encounter Billable

  • T36.3X6 - Underdosing of macrolides Non-Billable

  • T36.3X6A - Underdosing of macrolides, initial encounter Billable

  • T36.3X6D - Underdosing of macrolides, subsequent encounter Billable

  • T36.4X6 - Underdosing of tetracyclines Non-Billable

  • T36.4X6A - Underdosing of tetracyclines, initial encounter Billable

  • T36.4X6D - Underdosing of tetracyclines, subsequent encounter Billable

  • T36.5X6 - Underdosing of aminoglycosides Non-Billable

  • T36.5X6A - Underdosing of aminoglycosides, initial encounter Billable

  • T36.5X6D - Underdosing of aminoglycosides, subsequent encounter Billable

  • T36.6X6 - Underdosing of rifampicins Non-Billable

  • T36.6X6A - Underdosing of rifampicins, initial encounter Billable

  • T36.6X6D - Underdosing of rifampicins, subsequent encounter Billable

  • T36.7X6 - Underdosing of antifungal antibiotics, systemically used Non-Billable

  • T36.7X6A - Underdosing of antifungal antibiotics, systemically used, initial encounter Billable

  • T36.7X6D - Underdosing of antifungal antibiotics, systemically used, subsequent encounter Billable

  • T36.8X6 - Underdosing of other systemic antibiotics Non-Billable

  • T36.8X6A - Underdosing of other systemic antibiotics, initial encounter Billable

  • T36.8X6D - Underdosing of other systemic antibiotics, subsequent encounter Billable

  • T36.96 - Underdosing of unspecified systemic antibiotic Non-Billable

  • T36.96XA - Underdosing of unspecified systemic antibiotic, initial encounter Billable

  • T36.96XD - Underdosing of unspecified systemic antibiotic, subsequent encounter Billable

  • T49.0X6 - Underdosing of local antifungal, anti-infective and anti-inflammatory drugs Non-Billable

  • T49.0X6A - Underdosing of local antifungal, anti-infective and anti-inflammatory drugs, initial encounter Billable

  • T49.0X6D - Underdosing of local antifungal, anti-infective and anti-inflammatory drugs, subsequent encounter Billable

  • T49.1X6 - Underdosing of antipruritics Non-Billable

  • T49.1X6A - Underdosing of antipruritics, initial encounter Billable

  • T49.1X6D - Underdosing of antipruritics, subsequent encounter Billable

  • T49.2X6 - Underdosing of local astringents and local detergents Non-Billable

  • T49.2X6A - Underdosing of local astringents and local detergents, initial encounter Billable

  • T49.2X6D - Underdosing of local astringents and local detergents, subsequent encounter Billable

  • T49.3X6 - Underdosing of emollients, demulcents and protectants Non-Billable

  • T49.3X6A - Underdosing of emollients, demulcents and protectants, initial encounter Billable

  • T49.3X6D - Underdosing of emollients, demulcents and protectants, subsequent encounter Billable

  • T49.4X6 - Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations Non-Billable

  • T49.4X6A - Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, initial encounter Billable

  • T49.4X6D - Underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, subsequent encounter Billable

  • T49.5X6 - Underdosing of ophthalmological drugs and preparations Non-Billable

  • T49.5X6A - Underdosing of ophthalmological drugs and preparations, initial encounter Billable

  • T49.5X6D - Underdosing of ophthalmological drugs and preparations, subsequent encounter Billable

  • T49.6X6 - Underdosing of otorhinolaryngological drugs and preparations Non-Billable

  • T49.6X6A - Underdosing of otorhinolaryngological drugs and preparations, initial encounter Billable

  • T49.6X6D - Underdosing of otorhinolaryngological drugs and preparations, subsequent encounter Billable

  • T49.7X6 - Underdosing of dental drugs, topically applied Non-Billable

  • T49.7X6A - Underdosing of dental drugs, topically applied, initial encounter Billable

  • T49.7X6D - Underdosing of dental drugs, topically applied, subsequent encounter Billable

  • T49.8X6 - Underdosing of other topical agents Non-Billable

  • T49.8X6A - Underdosing of other topical agents, initial encounter Billable

  • T49.8X6D - Underdosing of other topical agents, subsequent encounter Billable

  • T49.96 - Underdosing of unspecified topical agent Non-Billable

  • T49.96XA - Underdosing of unspecified topical agent, initial encounter Billable

  • T49.96XD - Underdosing of unspecified topical agent, subsequent encounter Billable