ICD-10-CM · Chapter 19 · S00-T88
T36 Poisoning by, adverse effect of and underdosing of systemic antibiotics
Excludes 1 (cannot be coded together)
- 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)
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| T36..0 | Poisoning by, adverse effect of and underdosing of penicillins | No |
| T36..0X | Poisoning by, adverse effect of and underdosing of penicillins | No |
| T36..0X1 | Poisoning by penicillins, accidental (unintentional) | No |
| T36..0X2 | Poisoning by penicillins, intentional self-harm | No |
| T36..0X3 | Poisoning by penicillins, assault | No |
| T36..0X4 | Poisoning by penicillins, undetermined | No |
| T36..0X5 | Adverse effect of penicillins | No |
| T36..0X6 | Underdosing of penicillins | No |
| T36..1 | Poisoning by, adverse effect of and underdosing of cephalosporins and other beta-lactam antibiotics | No |
| T36..1X | Poisoning by, adverse effect of and underdosing of cephalosporins and other beta-lactam antibiotics | No |
| T36..1X1 | Poisoning by cephalosporins and other beta-lactam antibiotics, accidental (unintentional) | No |
| T36..1X2 | Poisoning by cephalosporins and other beta-lactam antibiotics, intentional self-harm | No |
| T36..1X3 | Poisoning by cephalosporins and other beta-lactam antibiotics, assault | No |
| T36..1X4 | Poisoning by cephalosporins and other beta-lactam antibiotics, undetermined | No |
| T36..1X5 | Adverse effect of cephalosporins and other beta-lactam antibiotics | No |
| T36..1X6 | Underdosing of cephalosporins and other beta-lactam antibiotics | No |
| T36..2 | Poisoning by, adverse effect of and underdosing of chloramphenicol group | No |
| T36..2X | Poisoning by, adverse effect of and underdosing of chloramphenicol group | No |
| T36..2X1 | Poisoning by chloramphenicol group, accidental (unintentional) | No |
| T36..2X2 | Poisoning by chloramphenicol group, intentional self-harm | No |
| T36..2X3 | Poisoning by chloramphenicol group, assault | No |
| T36..2X4 | Poisoning by chloramphenicol group, undetermined | No |
| T36..2X5 | Adverse effect of chloramphenicol group | No |
| T36..2X6 | Underdosing of chloramphenicol group | No |
| T36..3 | Poisoning by, adverse effect of and underdosing of macrolides | No |
| T36..3X | Poisoning by, adverse effect of and underdosing of macrolides | No |
| T36..3X1 | Poisoning by macrolides, accidental (unintentional) | No |
| T36..3X2 | Poisoning by macrolides, intentional self-harm | No |
| T36..3X3 | Poisoning by macrolides, assault | No |
| T36..3X4 | Poisoning by macrolides, undetermined | No |
| T36..3X5 | Adverse effect of macrolides | No |
| T36..3X6 | Underdosing of macrolides | No |
| T36..4 | Poisoning by, adverse effect of and underdosing of tetracyclines | No |
| T36..4X | Poisoning by, adverse effect of and underdosing of tetracyclines | No |
| T36..4X1 | Poisoning by tetracyclines, accidental (unintentional) | No |
| T36..4X2 | Poisoning by tetracyclines, intentional self-harm | No |
| T36..4X3 | Poisoning by tetracyclines, assault | No |
| T36..4X4 | Poisoning by tetracyclines, undetermined | No |
| T36..4X5 | Adverse effect of tetracyclines | No |
| T36..4X6 | Underdosing of tetracyclines | No |
| T36..5 | Poisoning by, adverse effect of and underdosing of aminoglycosides | No |
| T36..5X | Poisoning by, adverse effect of and underdosing of aminoglycosides | No |
| T36..5X1 | Poisoning by aminoglycosides, accidental (unintentional) | No |
| T36..5X2 | Poisoning by aminoglycosides, intentional self-harm | No |
| T36..5X3 | Poisoning by aminoglycosides, assault | No |
| T36..5X4 | Poisoning by aminoglycosides, undetermined | No |
| T36..5X5 | Adverse effect of aminoglycosides | No |
| T36..5X6 | Underdosing of aminoglycosides | No |
| T36..6 | Poisoning by, adverse effect of and underdosing of rifampicins | No |
| T36..6X | Poisoning by, adverse effect of and underdosing of rifampicins | No |
| T36..6X1 | Poisoning by rifampicins, accidental (unintentional) | No |
| T36..6X2 | Poisoning by rifampicins, intentional self-harm | No |
| T36..6X3 | Poisoning by rifampicins, assault | No |
| T36..6X4 | Poisoning by rifampicins, undetermined | No |
| T36..6X5 | Adverse effect of rifampicins | No |
| T36..6X6 | Underdosing of rifampicins | No |
| T36..7 | Poisoning by, adverse effect of and underdosing of antifungal antibiotics, systemically used | No |
| T36..7X | Poisoning by, adverse effect of and underdosing of antifungal antibiotics, systemically used | No |
| T36..7X1 | Poisoning by antifungal antibiotics, systemically used, accidental (unintentional) | No |
| T36..7X2 | Poisoning by antifungal antibiotics, systemically used, intentional self-harm | No |
| T36..7X3 | Poisoning by antifungal antibiotics, systemically used, assault | No |
| T36..7X4 | Poisoning by antifungal antibiotics, systemically used, undetermined | No |
| T36..7X5 | Adverse effect of antifungal antibiotics, systemically used | No |
| T36..7X6 | Underdosing of antifungal antibiotics, systemically used | No |
| T36..8 | Poisoning by, adverse effect of and underdosing of other systemic antibiotics | No |
| T36..8X | Poisoning by, adverse effect of and underdosing of other systemic antibiotics | No |
| T36..8X1 | Poisoning by other systemic antibiotics, accidental (unintentional) | No |
| T36..8X2 | Poisoning by other systemic antibiotics, intentional self-harm | No |
| T36..8X3 | Poisoning by other systemic antibiotics, assault | No |
| T36..8X4 | Poisoning by other systemic antibiotics, undetermined | No |
| T36..8X5 | Adverse effect of other systemic antibiotics | No |
| T36..8X6 | Underdosing of other systemic antibiotics | No |
| T36..9 | Poisoning by, adverse effect of and underdosing of unspecified systemic antibiotic | No |
| T36..91 | Poisoning by unspecified systemic antibiotic, accidental (unintentional) | No |
| T36..92 | Poisoning by unspecified systemic antibiotic, intentional self-harm | No |
| T36..93 | Poisoning by unspecified systemic antibiotic, assault | No |
| T36..94 | Poisoning by unspecified systemic antibiotic, undetermined | No |
| T36..95 | Adverse effect of unspecified systemic antibiotic | No |
| T36..96 | Underdosing of unspecified systemic antibiotic | No |
| T36..A | Poisoning by, adverse effect of and underdosing of fluoroquinolone antibiotics | No |
| T36..AX | Poisoning by, adverse effect of and underdosing of fluoroquinolone antibiotics | No |
| T36..AX1 | Poisoning by fluoroquinolone antibiotics, accidental (unintentional) | No |
| T36..AX2 | Poisoning by fluoroquinolone antibiotics, intentional self-harm | No |
| T36..AX3 | Poisoning by fluoroquinolone antibiotics, assault | No |
| T36..AX4 | Poisoning by fluoroquinolone antibiotics, undetermined | No |
| T36..AX5 | Adverse effect of fluoroquinolone antibiotics | No |
| T36..AX6 | Underdosing of fluoroquinolone antibiotics | No |
Last reviewed: September 2026