Home / ICD-10-CM / Chapter 20 / T36

T36 Systemic antibiotics

ICD-10-CM category T36 sits in Chapter 20 (External causes of morbidity, V00-Y99). It contains 198 billable codes for FY2027, effective October 1, 2026 to September 30, 2027. Always code to the most specific code available: a code with more characters that describes the diagnosis more precisely takes priority over a shorter one.

Subcategories

T36.0 PenicillinsT36.0X PenicillinsT36.0X1 Poisoning by penicillins, accidental (unintentional)T36.0X2 Poisoning by penicillins, intentional self-harmT36.0X3 Poisoning by penicillins, assaultT36.0X4 Poisoning by penicillins, undeterminedT36.0X5 Adverse effect of penicillinsT36.0X6 Underdosing of penicillinsT36.1 Cephalospor/oth beta-lactm antibioticsT36.1X Cephalospor/oth beta-lactm antibioticsT36.1X1 Poisoning by cephalospor/oth beta-lactm antibiot, accT36.1X2 Poisoning by cephalospor/oth beta-lactm antibiot, self-harmT36.1X3 Poisoning by cephalospor/oth beta-lactm antibiotics, assaultT36.1X4 Poisoning by cephalospor/oth beta-lactm antibiotics, undetT36.1X5 Adverse effect of cephalospor/oth beta-lactm antibioticsT36.1X6 Underdosing of cephalospor/oth beta-lactm antibioticsT36.2 Chloramphenicol groupT36.2X Chloramphenicol groupT36.2X1 Poisoning by chloramphenicol group, accidentalT36.2X2 Poisoning by chloramphenicol group, intentional self-harmT36.2X3 Poisoning by chloramphenicol group, assaultT36.2X4 Poisoning by chloramphenicol group, undeterminedT36.2X5 Adverse effect of chloramphenicol groupT36.2X6 Underdosing of chloramphenicol groupT36.3 MacrolidesT36.3X MacrolidesT36.3X1 Poisoning by macrolides, accidental (unintentional)T36.3X2 Poisoning by macrolides, intentional self-harmT36.3X3 Poisoning by macrolides, assaultT36.3X4 Poisoning by macrolides, undeterminedT36.3X5 Adverse effect of macrolidesT36.3X6 Underdosing of macrolidesT36.4 TetracyclinesT36.4X TetracyclinesT36.4X1 Poisoning by tetracyclines, accidental (unintentional)T36.4X2 Poisoning by tetracyclines, intentional self-harmT36.4X3 Poisoning by tetracyclines, assaultT36.4X4 Poisoning by tetracyclines, undeterminedT36.4X5 Adverse effect of tetracyclinesT36.4X6 Underdosing of tetracyclines

Billable codes in T36

CodeDescription
T36.0X1APoisoning by penicillins, accidental (unintentional), initial encounter
T36.0X1DPoisoning by penicillins, accidental (unintentional), subsequent encounter
T36.0X1SPoisoning by penicillins, accidental (unintentional), sequela
T36.0X2APoisoning by penicillins, intentional self-harm, initial encounter
T36.0X2DPoisoning by penicillins, intentional self-harm, subsequent encounter
T36.0X2SPoisoning by penicillins, intentional self-harm, sequela
T36.0X3APoisoning by penicillins, assault, initial encounter
T36.0X3DPoisoning by penicillins, assault, subsequent encounter
T36.0X3SPoisoning by penicillins, assault, sequela
T36.0X4APoisoning by penicillins, undetermined, initial encounter
T36.0X4DPoisoning by penicillins, undetermined, subsequent encounter
T36.0X4SPoisoning by penicillins, undetermined, sequela
T36.0X5AAdverse effect of penicillins, initial encounter
T36.0X5DAdverse effect of penicillins, subsequent encounter
T36.0X5SAdverse effect of penicillins, sequela
T36.0X6AUnderdosing of penicillins, initial encounter
T36.0X6DUnderdosing of penicillins, subsequent encounter
T36.0X6SUnderdosing of penicillins, sequela
T36.1X1APoisoning by cephalosporins and other beta-lactam antibiotics, accidental (unintentional), initial encounter
T36.1X1DPoisoning by cephalosporins and other beta-lactam antibiotics, accidental (unintentional), subsequent encounter
T36.1X1SPoisoning by cephalosporins and other beta-lactam antibiotics, accidental (unintentional), sequela
T36.1X2APoisoning by cephalosporins and other beta-lactam antibiotics, intentional self-harm, initial encounter
T36.1X2DPoisoning by cephalosporins and other beta-lactam antibiotics, intentional self-harm, subsequent encounter
T36.1X2SPoisoning by cephalosporins and other beta-lactam antibiotics, intentional self-harm, sequela
T36.1X3APoisoning by cephalosporins and other beta-lactam antibiotics, assault, initial encounter
T36.1X3DPoisoning by cephalosporins and other beta-lactam antibiotics, assault, subsequent encounter
T36.1X3SPoisoning by cephalosporins and other beta-lactam antibiotics, assault, sequela
T36.1X4APoisoning by cephalosporins and other beta-lactam antibiotics, undetermined, initial encounter
T36.1X4DPoisoning by cephalosporins and other beta-lactam antibiotics, undetermined, subsequent encounter
T36.1X4SPoisoning by cephalosporins and other beta-lactam antibiotics, undetermined, sequela
T36.1X5AAdverse effect of cephalosporins and other beta-lactam antibiotics, initial encounter
T36.1X5DAdverse effect of cephalosporins and other beta-lactam antibiotics, subsequent encounter
T36.1X5SAdverse effect of cephalosporins and other beta-lactam antibiotics, sequela
T36.1X6AUnderdosing of cephalosporins and other beta-lactam antibiotics, initial encounter
T36.1X6DUnderdosing of cephalosporins and other beta-lactam antibiotics, subsequent encounter
T36.1X6SUnderdosing of cephalosporins and other beta-lactam antibiotics, sequela
T36.2X1APoisoning by chloramphenicol group, accidental (unintentional), initial encounter
T36.2X1DPoisoning by chloramphenicol group, accidental (unintentional), subsequent encounter
T36.2X1SPoisoning by chloramphenicol group, accidental (unintentional), sequela
T36.2X2APoisoning by chloramphenicol group, intentional self-harm, initial encounter
T36.2X2DPoisoning by chloramphenicol group, intentional self-harm, subsequent encounter
T36.2X2SPoisoning by chloramphenicol group, intentional self-harm, sequela
T36.2X3APoisoning by chloramphenicol group, assault, initial encounter
T36.2X3DPoisoning by chloramphenicol group, assault, subsequent encounter
T36.2X3SPoisoning by chloramphenicol group, assault, sequela
T36.2X4APoisoning by chloramphenicol group, undetermined, initial encounter
T36.2X4DPoisoning by chloramphenicol group, undetermined, subsequent encounter
T36.2X4SPoisoning by chloramphenicol group, undetermined, sequela
T36.2X5AAdverse effect of chloramphenicol group, initial encounter
T36.2X5DAdverse effect of chloramphenicol group, subsequent encounter
T36.2X5SAdverse effect of chloramphenicol group, sequela
T36.2X6AUnderdosing of chloramphenicol group, initial encounter
T36.2X6DUnderdosing of chloramphenicol group, subsequent encounter
T36.2X6SUnderdosing of chloramphenicol group, sequela
T36.3X1APoisoning by macrolides, accidental (unintentional), initial encounter
T36.3X1DPoisoning by macrolides, accidental (unintentional), subsequent encounter
T36.3X1SPoisoning by macrolides, accidental (unintentional), sequela
T36.3X2APoisoning by macrolides, intentional self-harm, initial encounter
T36.3X2DPoisoning by macrolides, intentional self-harm, subsequent encounter
T36.3X2SPoisoning by macrolides, intentional self-harm, sequela
T36.3X3APoisoning by macrolides, assault, initial encounter
T36.3X3DPoisoning by macrolides, assault, subsequent encounter
T36.3X3SPoisoning by macrolides, assault, sequela
T36.3X4APoisoning by macrolides, undetermined, initial encounter
T36.3X4DPoisoning by macrolides, undetermined, subsequent encounter
T36.3X4SPoisoning by macrolides, undetermined, sequela
T36.3X5AAdverse effect of macrolides, initial encounter
T36.3X5DAdverse effect of macrolides, subsequent encounter
T36.3X5SAdverse effect of macrolides, sequela
T36.3X6AUnderdosing of macrolides, initial encounter
T36.3X6DUnderdosing of macrolides, subsequent encounter
T36.3X6SUnderdosing of macrolides, sequela
T36.4X1APoisoning by tetracyclines, accidental (unintentional), initial encounter
T36.4X1DPoisoning by tetracyclines, accidental (unintentional), subsequent encounter
T36.4X1SPoisoning by tetracyclines, accidental (unintentional), sequela
T36.4X2APoisoning by tetracyclines, intentional self-harm, initial encounter
T36.4X2DPoisoning by tetracyclines, intentional self-harm, subsequent encounter
T36.4X2SPoisoning by tetracyclines, intentional self-harm, sequela
T36.4X3APoisoning by tetracyclines, assault, initial encounter
T36.4X3DPoisoning by tetracyclines, assault, subsequent encounter
T36.4X3SPoisoning by tetracyclines, assault, sequela
T36.4X4APoisoning by tetracyclines, undetermined, initial encounter
T36.4X4DPoisoning by tetracyclines, undetermined, subsequent encounter
T36.4X4SPoisoning by tetracyclines, undetermined, sequela
T36.4X5AAdverse effect of tetracyclines, initial encounter
T36.4X5DAdverse effect of tetracyclines, subsequent encounter
T36.4X5SAdverse effect of tetracyclines, sequela
T36.4X6AUnderdosing of tetracyclines, initial encounter
T36.4X6DUnderdosing of tetracyclines, subsequent encounter
T36.4X6SUnderdosing of tetracyclines, sequela
T36.5X1APoisoning by aminoglycosides, accidental (unintentional), initial encounter
T36.5X1DPoisoning by aminoglycosides, accidental (unintentional), subsequent encounter
T36.5X1SPoisoning by aminoglycosides, accidental (unintentional), sequela
T36.5X2APoisoning by aminoglycosides, intentional self-harm, initial encounter
T36.5X2DPoisoning by aminoglycosides, intentional self-harm, subsequent encounter
T36.5X2SPoisoning by aminoglycosides, intentional self-harm, sequela
T36.5X3APoisoning by aminoglycosides, assault, initial encounter
T36.5X3DPoisoning by aminoglycosides, assault, subsequent encounter
T36.5X3SPoisoning by aminoglycosides, assault, sequela
T36.5X4APoisoning by aminoglycosides, undetermined, initial encounter
T36.5X4DPoisoning by aminoglycosides, undetermined, subsequent encounter
T36.5X4SPoisoning by aminoglycosides, undetermined, sequela
T36.5X5AAdverse effect of aminoglycosides, initial encounter
T36.5X5DAdverse effect of aminoglycosides, subsequent encounter
T36.5X5SAdverse effect of aminoglycosides, sequela
T36.5X6AUnderdosing of aminoglycosides, initial encounter
T36.5X6DUnderdosing of aminoglycosides, subsequent encounter
T36.5X6SUnderdosing of aminoglycosides, sequela
T36.6X1APoisoning by rifampicins, accidental (unintentional), initial encounter
T36.6X1DPoisoning by rifampicins, accidental (unintentional), subsequent encounter
T36.6X1SPoisoning by rifampicins, accidental (unintentional), sequela
T36.6X2APoisoning by rifampicins, intentional self-harm, initial encounter
T36.6X2DPoisoning by rifampicins, intentional self-harm, subsequent encounter
T36.6X2SPoisoning by rifampicins, intentional self-harm, sequela
T36.6X3APoisoning by rifampicins, assault, initial encounter
T36.6X3DPoisoning by rifampicins, assault, subsequent encounter
T36.6X3SPoisoning by rifampicins, assault, sequela
T36.6X4APoisoning by rifampicins, undetermined, initial encounter
T36.6X4DPoisoning by rifampicins, undetermined, subsequent encounter
T36.6X4SPoisoning by rifampicins, undetermined, sequela
T36.6X5AAdverse effect of rifampicins, initial encounter
T36.6X5DAdverse effect of rifampicins, subsequent encounter
T36.6X5SAdverse effect of rifampicins, sequela
T36.6X6AUnderdosing of rifampicins, initial encounter
T36.6X6DUnderdosing of rifampicins, subsequent encounter
T36.6X6SUnderdosing of rifampicins, sequela
T36.7X1APoisoning by antifungal antibiotics, systemically used, accidental (unintentional), initial encounter
T36.7X1DPoisoning by antifungal antibiotics, systemically used, accidental (unintentional), subsequent encounter
T36.7X1SPoisoning by antifungal antibiotics, systemically used, accidental (unintentional), sequela
T36.7X2APoisoning by antifungal antibiotics, systemically used, intentional self-harm, initial encounter
T36.7X2DPoisoning by antifungal antibiotics, systemically used, intentional self-harm, subsequent encounter
T36.7X2SPoisoning by antifungal antibiotics, systemically used, intentional self-harm, sequela
T36.7X3APoisoning by antifungal antibiotics, systemically used, assault, initial encounter
T36.7X3DPoisoning by antifungal antibiotics, systemically used, assault, subsequent encounter
T36.7X3SPoisoning by antifungal antibiotics, systemically used, assault, sequela
T36.7X4APoisoning by antifungal antibiotics, systemically used, undetermined, initial encounter
T36.7X4DPoisoning by antifungal antibiotics, systemically used, undetermined, subsequent encounter
T36.7X4SPoisoning by antifungal antibiotics, systemically used, undetermined, sequela
T36.7X5AAdverse effect of antifungal antibiotics, systemically used, initial encounter
T36.7X5DAdverse effect of antifungal antibiotics, systemically used, subsequent encounter
T36.7X5SAdverse effect of antifungal antibiotics, systemically used, sequela
T36.7X6AUnderdosing of antifungal antibiotics, systemically used, initial encounter
T36.7X6DUnderdosing of antifungal antibiotics, systemically used, subsequent encounter
T36.7X6SUnderdosing of antifungal antibiotics, systemically used, sequela
T36.8X1APoisoning by other systemic antibiotics, accidental (unintentional), initial encounter
T36.8X1DPoisoning by other systemic antibiotics, accidental (unintentional), subsequent encounter
T36.8X1SPoisoning by other systemic antibiotics, accidental (unintentional), sequela
T36.8X2APoisoning by other systemic antibiotics, intentional self-harm, initial encounter
T36.8X2DPoisoning by other systemic antibiotics, intentional self-harm, subsequent encounter
T36.8X2SPoisoning by other systemic antibiotics, intentional self-harm, sequela
T36.8X3APoisoning by other systemic antibiotics, assault, initial encounter
T36.8X3DPoisoning by other systemic antibiotics, assault, subsequent encounter
T36.8X3SPoisoning by other systemic antibiotics, assault, sequela
T36.8X4APoisoning by other systemic antibiotics, undetermined, initial encounter
T36.8X4DPoisoning by other systemic antibiotics, undetermined, subsequent encounter
T36.8X4SPoisoning by other systemic antibiotics, undetermined, sequela
T36.8X5AAdverse effect of other systemic antibiotics, initial encounter
T36.8X5DAdverse effect of other systemic antibiotics, subsequent encounter
T36.8X5SAdverse effect of other systemic antibiotics, sequela
T36.8X6AUnderdosing of other systemic antibiotics, initial encounter
T36.8X6DUnderdosing of other systemic antibiotics, subsequent encounter
T36.8X6SUnderdosing of other systemic antibiotics, sequela
T36.91XAPoisoning by unspecified systemic antibiotic, accidental (unintentional), initial encounter
T36.91XDPoisoning by unspecified systemic antibiotic, accidental (unintentional), subsequent encounter
T36.91XSPoisoning by unspecified systemic antibiotic, accidental (unintentional), sequela
T36.92XAPoisoning by unspecified systemic antibiotic, intentional self-harm, initial encounter
T36.92XDPoisoning by unspecified systemic antibiotic, intentional self-harm, subsequent encounter
T36.92XSPoisoning by unspecified systemic antibiotic, intentional self-harm, sequela
T36.93XAPoisoning by unspecified systemic antibiotic, assault, initial encounter
T36.93XDPoisoning by unspecified systemic antibiotic, assault, subsequent encounter
T36.93XSPoisoning by unspecified systemic antibiotic, assault, sequela
T36.94XAPoisoning by unspecified systemic antibiotic, undetermined, initial encounter
T36.94XDPoisoning by unspecified systemic antibiotic, undetermined, subsequent encounter
T36.94XSPoisoning by unspecified systemic antibiotic, undetermined, sequela
T36.95XAAdverse effect of unspecified systemic antibiotic, initial encounter
T36.95XDAdverse effect of unspecified systemic antibiotic, subsequent encounter
T36.95XSAdverse effect of unspecified systemic antibiotic, sequela
T36.96XAUnderdosing of unspecified systemic antibiotic, initial encounter
T36.96XDUnderdosing of unspecified systemic antibiotic, subsequent encounter
T36.96XSUnderdosing of unspecified systemic antibiotic, sequela
T36.AX1APoisoning by fluoroquinolone antibiotics, accidental (unintentional), initial encounter
T36.AX1DPoisoning by fluoroquinolone antibiotics, accidental (unintentional), subsequent encounter
T36.AX1SPoisoning by fluoroquinolone antibiotics, accidental (unintentional), sequela
T36.AX2APoisoning by fluoroquinolone antibiotics, intentional self-harm, initial encounter
T36.AX2DPoisoning by fluoroquinolone antibiotics, intentional self-harm, subsequent encounter
T36.AX2SPoisoning by fluoroquinolone antibiotics, intentional self-harm, sequela
T36.AX3APoisoning by fluoroquinolone antibiotics, assault, initial encounter
T36.AX3DPoisoning by fluoroquinolone antibiotics, assault, subsequent encounter
T36.AX3SPoisoning by fluoroquinolone antibiotics, assault, sequela
T36.AX4APoisoning by fluoroquinolone antibiotics, undetermined, initial encounter
T36.AX4DPoisoning by fluoroquinolone antibiotics, undetermined, subsequent encounter
T36.AX4SPoisoning by fluoroquinolone antibiotics, undetermined, sequela
T36.AX5AAdverse effect of fluoroquinolone antibiotics, initial encounter
T36.AX5DAdverse effect of fluoroquinolone antibiotics, subsequent encounter
T36.AX5SAdverse effect of fluoroquinolone antibiotics, sequela
T36.AX6AUnderdosing of fluoroquinolone antibiotics, initial encounter
T36.AX6DUnderdosing of fluoroquinolone antibiotics, subsequent encounter
T36.AX6SUnderdosing of fluoroquinolone antibiotics, sequela

Search within ICD-10-CM for T36 and related codes

Advertisement