2026 ICD-10-CM Diagnosis Code T44.7X4SPoisoning by beta-adrenoreceptor antagonists, undetermined, sequela
T44.7X4S is a billable ICD-10-CM diagnosis code for poisoning by beta-adrenoreceptor antagonists, undetermined, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 922 through 923. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Poisoning/toxic effect/adverse effects/underdosing, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
T44.7X4S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Coding GuidelinesGuidance
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 drugs primarily affecting the autonomic nervous system (T44). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Acebutolol
a cardioselective beta-1 adrenergic antagonist with little effect on the bronchial receptors. the drug has stabilizing and quinidine-like effects on cardiac rhythm, as well as weak inherent sympathomimetic action.Alprenolol
one of the adrenergic beta-antagonists used as an antihypertensive, anti-anginal, and anti-arrhythmic agent.Atenolol
a cardioselective beta-1 adrenergic blocker possessing properties and potency similar to propranolol, but without a negative inotropic effect.Betaxolol
a cardioselective beta-1-adrenergic antagonist with no partial agonist activity.Bisoprolol
a cardioselective beta-1 adrenergic blocker. it is effective in the management of hypertension and angina pectoris.Bupranolol
an adrenergic-beta-2 antagonist that has been used for cardiac arrhythmia, angina pectoris, hypertension, glaucoma, and as an antithrombotic.Carteolol
a beta-adrenergic antagonist used as an anti-arrhythmia agent, an anti-angina agent, an antihypertensive agent, and an antiglaucoma agent.Celiprolol
a cardioselective beta-1 adrenergic antagonist that has intrinsic sympathomimetic activity. it is used in the management of angina pectoris and hypertension.Metoprolol
a selective adrenergic beta-1 blocking agent that is commonly used to treat angina pectoris; hypertension; and cardiac arrhythmias.Nadolol
a non-selective beta-adrenergic antagonist with a long half-life, used in cardiovascular disease to treat arrhythmias, angina pectoris, and hypertension. nadolol is also used for migraine disorders and for tremor.Oxprenolol
a beta-adrenergic antagonist used in the treatment of hypertension, angina pectoris, arrhythmias, and anxiety.Penbutolol
a nonselective beta-blocker used as an antihypertensive and an antianginal agent.Pindolol
a moderately lipophilic beta blocker (adrenergic beta-antagonists). it is non-cardioselective and has intrinsic sympathomimetic actions, but little membrane-stabilizing activity. (from martindale, the extra pharmocopoeia, 30th ed, p638)Practolol
a beta-1 adrenergic antagonist that has been used in the emergency treatment of cardiac arrythmias.Propranolol
a widely used non-cardioselective beta-adrenergic antagonist. propranolol has been used for myocardial infarction; arrhythmia; angina pectoris; hypertension; hyperthyroidism; migraine; pheochromocytoma; and anxiety but adverse effects instigate replacement by newer drugs.Sotalol
an adrenergic beta-antagonist that is used in the treatment of life-threatening arrhythmias.Timolol
a beta-adrenergic antagonist that is similar in action to propranolol; the levo-isomer is more active. timolol has been proposed as an anti-hypertensive, anti-arrhythmic, anti-angina, and anti-glaucoma agent. it is also used in the treatment of migraine disorders and tremor.
Table of Drugs and ChemicalsClinical
Substances in the Table of Drugs and Chemicals that reference this code family. Always confirm in the Tabular List before coding.
Patient EducationClinical
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:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert T44.7X4S to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About T44.7X4SOverview
Is T44.7X4S (Poisoning by beta-adrenoreceptor antagonists, undetermined) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report poisoning by beta-adrenoreceptor antagonists, undetermined, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in T44.7X4S mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the poisoning by beta-adrenoreceptor antagonists, undetermined itself has resolved, not the original event.
What MS-DRG does T44.7X4S group to?
When poisoning by beta-adrenoreceptor antagonists, undetermined, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 922, 923, with relative weights from 1.0177 to 1.7494 depending on complications. Higher weights mean higher Medicare reimbursement.
Is T44.7X4S exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for poisoning by beta-adrenoreceptor antagonists, undetermined, sequela on inpatient claims.
What is the ICD-9 equivalent of T44.7X4S?
Under the General Equivalence Mappings, poisoning by beta-adrenoreceptor antagonists, undetermined, sequela converts to ICD-9-CM 909.0 (late eff drug poisoning) and E989 (late eff inj-undet circ). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
