ICD-10-CM 2027 diagnosis code
T37.8X5Adverse effect of other specified systemic anti-infectives and antiparasitics
T37.8X5 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.Short description: Adverse effect of systemic anti-infect/parasit
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 T37.8X5
T37.8X5 is the ICD-10-CM diagnosis code for adverse effect of other specified systemic anti-infectives and antiparasitics. It belongs to category T37 (poisoning by, adverse effect of and underdosing of other systemic anti-infectives and antiparasitics), 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 T37.8X, choose T37.8X5 (Adverse effect of other specified systemic anti-infectives and antiparasitics) only when documentation doesn't support a more specific option: poisoning by other specified systemic anti-infectives and antiparasitics, accidental (unintentional) (T37.8X1), poisoning by other specified systemic anti-infectives and antiparasitics, intentional self-harm (T37.8X2), poisoning by other specified systemic anti-infectives and antiparasitics, assault (T37.8X3), poisoning by other specified systemic anti-infectives and antiparasitics, undetermined (T37.8X4) and underdosing of other specified systemic anti-infectives and antiparasitics (T37.8X6).
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 T37
Notes that apply from higher levels
Instructions written at a parent level also apply to T37.8X5.
› From T37.8 Poisoning by, adverse effect of and underdosing of other specified systemic anti-infectives and antiparasitics
- antimalarial drugs (T37.2-)
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
- Akritoin — Adverse effect
- Anti-infective NEC › arsenical — Adverse effect
- Anti-infective NEC › heavy metals NEC — Adverse effect
- Antimony (compounds) (vapor) NEC › anti-infectives — Adverse effect
- Antimony (compounds) (vapor) NEC › potassium (sodium) tartrate — Adverse effect
- Antimony (compounds) (vapor) NEC › tartrated — Adverse effect
- Antiparasitic drug (systemic) › specified NEC — Adverse effect
- Arsenic, arsenicals (compounds) (dust) (vapor) NEC › anti-infectives — Adverse effect
- Arsphenamine (silver) — Adverse effect
- Bismarsen — Adverse effect
- Bismuth salts › anti-infectives — Adverse effect
- Bismuth salts › subsalicylate — Adverse effect
- Bismuth salts › sulfarsphenamine — Adverse effect
- Bithionol — Adverse effect
- Broxyquinoline — Adverse effect
- Chiniofon — Adverse effect
- Cinoxacin — Adverse effect
- Clioquinol — Adverse effect
- Croconazole — Adverse effect
- Dichlorhydroxyquinoline — Adverse effect
- Diiodohydroxyquin — Adverse effect
- Diiodohydroxyquinoline — Adverse effect
- Diodoquin — Adverse effect
- Disinfectant › intestinal — Adverse effect
- Floraquin — Adverse effect
- Fluconazole — Adverse effect
- Flucytosine — Adverse effect
- Flumequine — Adverse effect
- Flunidazole — Adverse effect
- Fluorocytosine — 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 T37.8X5
Is T37.8X5 billable?
- No. T37.8X5 is a header code. Report one of its more specific subcodes instead.