T36.9

T36.9: Poisoning by, adverse effect of and underdosing of unspecified systemic antibiotic

Non-billable headerICD-10-CM

T36.9 is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of unspecified systemic antibiotic. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category T36

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 inherited from the categories above T36.9

A category’s note binds every code beneath it.

Written on T36: Poisoning by, adverse effect of and underdosing of systemic antibiotics

antineoplastic antibiotics (T45.1-)
locally applied antibiotic NEC (T49.0)
topically used antibiotic for ear, nose and throat (T49.6)
topically used antibiotic for eye (T49.5)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T36.9

6 child codes. Green means billable.