ICD-10-CM 2027 diagnosis code
T50.6X5Adverse effect of antidotes and chelating agents
T50.6X5 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.
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 T50.6X5
T50.6X5 is the ICD-10-CM diagnosis code for adverse effect of antidotes and chelating agents. It belongs to category T50 (poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances), 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 3 subcodes must be used instead.
Within T50.6X (poisoning by, adverse effect of and underdosing of antidotes and chelating agents), T50.6X5 is specifically for adverse effect of antidotes and chelating agents. Related codes cover poisoning by antidotes and chelating agents, accidental (unintentional) (T50.6X1), poisoning by antidotes and chelating agents, intentional self-harm (T50.6X2), poisoning by antidotes and chelating agents, assault (T50.6X3), poisoning by antidotes and chelating agents, undetermined (T50.6X4) and underdosing of antidotes and chelating agents (T50.6X6).
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 T50
Notes that apply from higher levels
Instructions written at a parent level also apply to T50.6X5.
Table of Drugs & Neoplasms entries
- Alcohol › deterrent NEC — Adverse effect
- Antabuse — Adverse effect
- Antidote NEC — Adverse effect
- Calcium › carbimide — Adverse effect
- Chelating agent NEC — Adverse effect
- Cholinesterase reactivator — Adverse effect
- Cysteamine — Adverse effect
- Deterrent, alcohol — Adverse effect
- Detoxifying agent — Adverse effect
- Disodium edetate — Adverse effect
- Disulfiram — Adverse effect
- EDTA — Adverse effect
- Ethylenediaminetetra-acetic acid — Adverse effect
- Ethylenedinitrilotetra-acetate — Adverse effect
- Fytic acid, nonasodium — Adverse effect
- Glutathione — Adverse effect
- Methylene › blue — Adverse effect
- Methylthionine chloride — Adverse effect
- Methylthioninium chloride — Adverse effect
- Nitrefazole — Adverse effect
- Obidoxime chloride — Adverse effect
- PAM (pralidoxime) — Adverse effect
- Penicillamine — Adverse effect
- Potassium (salts) NEC › ferric hexacyanoferrate (medicinal) — Adverse effect
- Pralidoxime (iodide) — Adverse effect
- Pralidoxime (iodide) › chloride — Adverse effect
- Protopam — Adverse effect
- Prussian blue › therapeutic — Adverse effect
- Pyridine › aldoxime methiodide — Adverse effect
- Pyridine › aldoxime methyl chloride — Adverse effect
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 T50.6X5
Is T50.6X5 billable?
- No. T50.6X5 is a header code. Report one of its more specific subcodes instead.