ICD-10-CM 2027 diagnosis code
T49.1X4Poisoning by antipruritics, undetermined
T49.1X4 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 T49.1X4
T49.1X4 is the ICD-10-CM diagnosis code for poisoning by antipruritics, undetermined. It belongs to category T49 (poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs), 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 T49.1X (poisoning by, adverse effect of and underdosing of antipruritics), T49.1X4 is specifically for poisoning by antipruritics, undetermined. Related codes cover poisoning by antipruritics, accidental (unintentional) (T49.1X1), poisoning by antipruritics, intentional self-harm (T49.1X2), poisoning by antipruritics, assault (T49.1X3), adverse effect of antipruritics (T49.1X5) and underdosing of antipruritics (T49.1X6).
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 T49
Notes that apply from higher levels
Instructions written at a parent level also apply to T49.1X4.
› From T49 Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
- poisoning by, adverse effect of and underdosing of glucocorticoids, topically used
Broader instructions also apply from 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.
Table of Drugs & Neoplasms entries
- Antipruritic drug NEC — Poisoning Undetermined
- Benzamine › lactate — Poisoning Undetermined
- b-eucaine — Poisoning Undetermined
- Coal (carbon monoxide from) › tar — Poisoning Undetermined
- Dimethisoquin — Poisoning Undetermined
- ESDT (ether-soluble tar distillate) — Poisoning Undetermined
- Juniper tar — Poisoning Undetermined
- Phenol › medicinal — Poisoning Undetermined
- Phenolic preparation — Poisoning Undetermined
- Pramocaine — Poisoning Undetermined
- Pramoxine — Poisoning Undetermined
- Quinisocaine — Poisoning Undetermined
- Tar NEC › distillate — Poisoning Undetermined
- Tar NEC › medicinal — Poisoning Undetermined
- Tar NEC › ointment — Poisoning Undetermined
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 T49.1X4
Is T49.1X4 billable?
- No. T49.1X4 is a header code. Report one of its more specific subcodes instead.