Is T36 a billable code?
No. T36 is a header code that groups 180 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
T36: Poisoning by, adverse effect of and underdosing of systemic antibiotics
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
T36 groups related diagnoses under poisoning by, adverse effect of and underdosing of systemic antibiotics. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under T36
- 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.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
T36 questions
What does T36 mean?
T36 is the ICD-10-CM code for Poisoning by, adverse effect of and underdosing of systemic antibiotics. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.