ICD-10-CM 2027 diagnosis code
T47.6Poisoning by, adverse effect of and underdosing of antidiarrheal drugs
T47.6 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: Antidiarrheal 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 T47.6
T47.6 is the ICD-10-CM diagnosis code for poisoning by, adverse effect of and underdosing of antidiarrheal 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 (poisoning by, adverse effect of and underdosing of agents primarily affecting the gastrointestinal system), T47.6 is specifically for poisoning by, adverse effect of and underdosing of antidiarrheal drugs. Related codes cover histamine H2-receptor blockers (T47.0), other antacids and anti-gastric-secretion drugs (T47.1), stimulant laxatives (T47.2), saline and osmotic laxatives (T47.3), other laxatives (T47.4), digestants (T47.5), 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.
The conditions in its Excludes2 note aren't part of T47.6, but may be coded alongside it if the patient has both: poisoning by, adverse effect of and underdosing of systemic antibiotics and other anti-infectives (T36-T37).
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
- T47.6XPoisoning by, adverse effect of and underdosing of antidiarrheal drugs
- T47.6X1Poisoning by antidiarrheal drugs, accidental (unintentional)
- T47.6X2Poisoning by antidiarrheal drugs, intentional self-harm
- T47.6X3Poisoning by antidiarrheal drugs, assault
- T47.6X4Poisoning by antidiarrheal drugs, undetermined
- T47.6X5Adverse effect of antidiarrheal drugs
- T47.6X6Underdosing of antidiarrheal drugs
- Ainitial encounter
- Dsubsequent encounter
- Ssequela
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to T47.6.
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 T47.6
Is T47.6 billable?
- No. T47.6 is a header code. Report one of its more specific subcodes instead.