ICD-10-CM 2027 diagnosis code
T47.1Poisoning by, adverse effect of and underdosing of other antacids and anti-gastric-secretion drugs
T47.1 is a header code, so it can't be reported by itself. Choose one of the 1 more specific codes beneath it and add the required 7th character.Short description: Antacids and anti-gastric-secretion drugs
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About T47.1
T47.1 is the ICD-10-CM diagnosis code for poisoning by, adverse effect of and underdosing of other antacids and anti-gastric-secretion drugs. It belongs to category T47 (poisoning by, adverse effect of and underdosing of agents primarily affecting the gastrointestinal system), block T36-T50 (poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 1 subcodes must be used instead.
Within T47, choose T47.1 (other antacids and anti-gastric-secretion drugs) only when documentation doesn't support a more specific option: histamine H2-receptor blockers (T47.0), stimulant laxatives (T47.2), saline and osmotic laxatives (T47.3), other laxatives (T47.4), digestants (T47.5), antidiarrheal drugs (T47.6), emetics (T47.7), other agents primarily affecting gastrointestinal system (T47.8) and 1 more.
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
7th character
The appropriate 7th character is to be added to each code from category T47
- T47.1XPoisoning by, adverse effect of and underdosing of other antacids and anti-gastric-secretion drugs
- T47.1X1Poisoning by other antacids and anti-gastric-secretion drugs, accidental (unintentional)
- T47.1X2Poisoning by other antacids and anti-gastric-secretion drugs, intentional self-harm
- T47.1X3Poisoning by other antacids and anti-gastric-secretion drugs, assault
- T47.1X4Poisoning by other antacids and anti-gastric-secretion drugs, undetermined
- T47.1X5Adverse effect of other antacids and anti-gastric-secretion drugs
- T47.1X6Underdosing of other antacids and anti-gastric-secretion drugs
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Notes that apply from higher levels
Instructions written at a parent level also apply to T47.1.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about T47.1
Is T47.1 billable?
- No. T47.1 is a header code. Report one of its more specific subcodes instead.