T47 Poisoning by, adverse effect of and underdosing of agents primarily affecting the gastrointestinal system

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Poisoning by, adverse effect of and underdosing of agents primarily affecting the gastrointestinal system is T47 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
T36-T50: Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)
Category T47
80 codes (60 billable)
FY2026 Status
Stable since FY2024

Official Coding Guidelines

Sequence blood vessel/nerve injury first (fragment)

injury is to the blood vessels or nerves, that injury should be sequenced first.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.19.b.2
Do not assign injury codes for iatrogenic injuries; code complication

3) Iatrogenic injuries Injury codes from Chapter 19 should not be assigned for injuries that occur during, or as a result of, a medical intervention. Assign the appropriate complication code(s).

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.19.b.3

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference T47 with the canonical source and edition:

T47 — Poisoning by, adverse effect of and underdosing of agents primarily affecting the gastrointestinal system. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/T47

Canonical URL: https://icd10codingpro.com/codes/T47

Related Codes

All Codes in T47

Every most-specific code under T47 Poisoning by, adverse effect of and underdosing of agents primarily affecting the gastrointestinal system (60 codes):

Show the complete T47 code list
T47.0X1 Poisoning by histamine H2-receptor blockers, accidental (unintentional) T47.0X2 Poisoning by histamine H2-receptor blockers, intentional self-harm T47.0X3 Poisoning by histamine H2-receptor blockers, assault T47.0X4 Poisoning by histamine H2-receptor blockers, undetermined T47.0X5 Adverse effect of histamine H2-receptor blockers T47.0X6 Underdosing of histamine H2-receptor blockers T47.1X1 Poisoning by other antacids and anti-gastric-secretion drugs, accidental (unintentional) T47.1X2 Poisoning by other antacids and anti-gastric-secretion drugs, intentional self-harm T47.1X3 Poisoning by other antacids and anti-gastric-secretion drugs, assault T47.1X4 Poisoning by other antacids and anti-gastric-secretion drugs, undetermined T47.1X5 Adverse effect of other antacids and anti-gastric-secretion drugs T47.1X6 Underdosing of other antacids and anti-gastric-secretion drugs T47.2X1 Poisoning by stimulant laxatives, accidental (unintentional) T47.2X2 Poisoning by stimulant laxatives, intentional self-harm T47.2X3 Poisoning by stimulant laxatives, assault T47.2X4 Poisoning by stimulant laxatives, undetermined T47.2X5 Adverse effect of stimulant laxatives T47.2X6 Underdosing of stimulant laxatives T47.3X1 Poisoning by saline and osmotic laxatives, accidental (unintentional) T47.3X2 Poisoning by saline and osmotic laxatives, intentional self-harm T47.3X3 Poisoning by saline and osmotic laxatives, assault T47.3X4 Poisoning by saline and osmotic laxatives, undetermined T47.3X5 Adverse effect of saline and osmotic laxatives T47.3X6 Underdosing of saline and osmotic laxatives T47.4X1 Poisoning by other laxatives, accidental (unintentional) T47.4X2 Poisoning by other laxatives, intentional self-harm T47.4X3 Poisoning by other laxatives, assault T47.4X4 Poisoning by other laxatives, undetermined T47.4X5 Adverse effect of other laxatives T47.4X6 Underdosing of other laxatives T47.5X1 Poisoning by digestants, accidental (unintentional) T47.5X2 Poisoning by digestants, intentional self-harm T47.5X3 Poisoning by digestants, assault T47.5X4 Poisoning by digestants, undetermined T47.5X5 Adverse effect of digestants T47.5X6 Underdosing of digestants T47.6X1 Poisoning by antidiarrheal drugs, accidental (unintentional) T47.6X2 Poisoning by antidiarrheal drugs, intentional self-harm T47.6X3 Poisoning by antidiarrheal drugs, assault T47.6X4 Poisoning by antidiarrheal drugs, undetermined T47.6X5 Adverse effect of antidiarrheal drugs T47.6X6 Underdosing of antidiarrheal drugs T47.7X1 Poisoning by emetics, accidental (unintentional) T47.7X2 Poisoning by emetics, intentional self-harm T47.7X3 Poisoning by emetics, assault T47.7X4 Poisoning by emetics, undetermined T47.7X5 Adverse effect of emetics T47.7X6 Underdosing of emetics T47.8X1 Poisoning by other agents primarily affecting gastrointestinal system, accidental (unintentional) T47.8X2 Poisoning by other agents primarily affecting gastrointestinal system, intentional self-harm T47.8X3 Poisoning by other agents primarily affecting gastrointestinal system, assault T47.8X4 Poisoning by other agents primarily affecting gastrointestinal system, undetermined T47.8X5 Adverse effect of other agents primarily affecting gastrointestinal system T47.8X6 Underdosing of other agents primarily affecting gastrointestinal system T47.91 Poisoning by unspecified agents primarily affecting the gastrointestinal system, accidental (unintentional) T47.92 Poisoning by unspecified agents primarily affecting the gastrointestinal system, intentional self-harm T47.93 Poisoning by unspecified agents primarily affecting the gastrointestinal system, assault T47.94 Poisoning by unspecified agents primarily affecting the gastrointestinal system, undetermined T47.95 Adverse effect of unspecified agents primarily affecting the gastrointestinal system T47.96 Underdosing of unspecified agents primarily affecting the gastrointestinal system
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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