T36
Poisoning by, adverse effect of and underdosing of systemic antibiotics
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 6 never code together
T36code
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 3
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here 2
Subordinate codes 11
T36.0 Penicillins T36.1 Cephalospor/oth beta-lactm antibiotics T36.2 Chloramphenicol group T36.3 Macrolides T36.4 Tetracyclines T36.5 Aminoglycosides T36.6 Rifampicins T36.7 Antifungal antibiotics, systemically used T36.8 Systemic antibiotics T36.9 Unsp systemic antibiotic T36.A Fluoroquinolone antibiotics
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.