2026 ICD-10-CM Diagnosis Code T47.1X1SPoisoning by other antacids and anti-gastric-secretion drugs, accidental (unintentional), sequela
T47.1X1S is a billable ICD-10-CM diagnosis code for poisoning by other antacids and anti-gastric-secretion drugs, accidental (unintentional), 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
T47.1X1S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Accidental aluminum hydroxide overdose
- Accidental aluminum hydroxide poisoning
- Accidental carbenoxolone overdose
- Accidental carbenoxolone poisoning
- Accidental lansoprazole overdose
- Accidental lansoprazole poisoning
- Accidental magnesium trisilicate overdose
- Accidental magnesium trisilicate poisoning
- Accidental misoprostol overdose
- Accidental misoprostol poisoning
- Accidental omeprazole overdose
- Accidental omeprazole poisoning
- Accidental pirenzepine overdose
- Accidental pirenzepine poisoning
- Accidental poisoning by anticholinergic
- Accidental prostaglandin overdose
- Accidental prostaglandin poisoning
- Accidental sucralfate overdose
- Accidental sucralfate poisoning
- Aluminum hydroxide overdose
- Antacid overdose
- Anticholinergic drug overdose
- Carbenoxolone overdose
- Carbenoxolone poisoning
- Fetal misoprostol syndrome
- Lansoprazole overdose
- Lansoprazole poisoning
- Magnesium trisilicate overdose
- Misoprostol overdose
- Misoprostol poisoning
- Omeprazole overdose
- Omeprazole poisoning
- Pirenzepine overdose
- Pirenzepine poisoning
- Poisoning by aluminum hydroxide
- Poisoning by magnesium trisilicate
- Prostaglandin overdose
- Proton pump inhibitor overdose
- Proton pump inhibitor poisoning
- Sucralfate overdose
- Sucralfate poisoning
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 agents primarily affecting the gastrointestinal system (T47). 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
Burimamide
an antagonist of histamine that appears to block both h2 and h3 histamine receptors. it has been used in the treatment of ulcers.Carbenoxolone
an agent derived from licorice root. it is used for the treatment of digestive tract ulcers, especially in the stomach. antidiuretic side effects are frequent, but otherwise the drug is low in toxicity.Enprostil
a synthetic pge2 analog that has an inhibitory effect on gastric acid secretion, a mucoprotective effect, and a postprandial lowering effect on gastrin. it has been shown to be efficient and safe in the treatment of gastroduodenal ulcers.Metiamide
a histamine h2 receptor antagonist that is used as an anti-ulcer agent.Misoprostol
a synthetic analog of natural prostaglandin e1. it produces a dose-related inhibition of gastric acid and pepsin secretion, and enhances mucosal resistance to injury. it is an effective anti-ulcer agent and also has oxytocic properties.Omeprazole
a 4-methoxy-3,5-dimethylpyridyl, 5-methoxybenzimidazole derivative of timoprazole that is used in the therapy of stomach ulcers and zollinger-ellison syndrome. the drug inhibits an h(+)-k(+)-exchanging atpase which is found in gastric parietal cells.Pirenzepine
an antimuscarinic agent that inhibits gastric secretion at lower doses than are required to affect gastrointestinal motility, salivary, central nervous system, cardiovascular, ocular, and urinary function. it promotes the healing of duodenal ulcers and due to its cytoprotective action is beneficial in the prevention of duodenal ulcer recurrence. it also potentiates the effect of other antiulcer agents such as cimetidine and ranitidine. it is generally well tolerated by patients.Proglumide
a drug that exerts an inhibitory effect on gastric secretion and reduces gastrointestinal motility. it is used clinically in the drug therapy of gastrointestinal ulcers.Simethicone
a poly(dimethylsiloxane) which is a polymer of 200-350 units of dimethylsiloxane, along with added silica gel. it is used as an antiflatulent, surfactant, and ointment base.Sucralfate
a basic aluminum complex of sulfated sucrose.
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
Medication Errors
Medicines treat infectious diseases, prevent problems from chronic diseases, and ease pain. But medicines can also cause harmful reactions if not used correctly. Errors can happen in the hospital, at the health care provider's office, at the pharmacy, or at home. You can help prevent errors by:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert T47.1X1S to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About T47.1X1SOverview
Is T47.1X1S a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report poisoning by other antacids and anti-gastric-secretion drugs, accidental (unintentional), sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in T47.1X1S mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the poisoning by other antacids and anti-gastric-secretion drugs, accidental (unintentional) itself has resolved, not the original event.
What MS-DRG does T47.1X1S group to?
When poisoning by other antacids and anti-gastric-secretion drugs, accidental (unintentional), 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 T47.1X1S 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 other antacids and anti-gastric-secretion drugs, accidental (unintentional), sequela on inpatient claims.
What is the ICD-9 equivalent of T47.1X1S?
Under the General Equivalence Mappings, poisoning by other antacids and anti-gastric-secretion drugs, accidental (unintentional), sequela converts to ICD-9-CM 909.0 (late eff drug poisoning) and E929.2 (late eff acc poisoning). 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.
