T36 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Poisoning by, adverse effect of and underdosing of systemic antibiotics.
Type 1 excludes
Seventh character note
The appropriate 7th character is to be added to each code from category T36
Seventh character extensions
A: initial encounter
D: subsequent encounter
S: sequela
Codes
T36.0
Poisoning by, adverse effect of and underdosing of penicillins
T36.1
Poisoning by, adverse effect of and underdosing of cephalosporins and other beta-lactam antibiotics
T36.2
Poisoning by, adverse effect of and underdosing of chloramphenicol group
T36.3
Poisoning by, adverse effect of and underdosing of macrolides
T36.4
Poisoning by, adverse effect of and underdosing of tetracyclines
T36.5
Poisoning by, adverse effect of and underdosing of aminoglycosides
T36.6
Poisoning by, adverse effect of and underdosing of rifampicins
T36.7
Poisoning by, adverse effect of and underdosing of antifungal antibiotics, systemically used
T36.8
Poisoning by, adverse effect of and underdosing of other systemic antibiotics
T36.9
Poisoning by, adverse effect of and underdosing of unspecified systemic antibiotic
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code