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45 Adverse effect of unspecified anesthetic

T41.46 Underdosing of unspecified anesthetics

T41.5 Poisoning by, adverse effect of and underdosing of therapeutic gases

T41.5x Poisoning by, adverse effect of and underdosing of therapeutic gases

T41.5x1 Poisoning by therapeutic gases, accidental (unintentional)

Poisoning by therapeutic gases NOS

T41.5x2 Poisoning by therapeutic gases, intentional self-harm

T41.5x3 Poisoning by therapeutic gases, assault

T41.5x4 Poisoning by therapeutic gases, undetermined

T41.5x5 Adverse effect of therapeutic gases

T41.5x6 Underdosing of therapeutic gases

T42 Poisoning by, adverse effect of and underdosing of antiepileptic, sedative- hypnotic and antiparkinsonism drugs

Excludes2: drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.--F19.-)

The appropriate 7th character is to be added to each code from category T42

A initial encounter

D subsequent encounter

S sequela

T42.0 Poisoning by, adverse effect of and underdosing of hydantoin derivatives

T42.0x Poisoning by, adverse effect of and underdosing of hydantoin derivatives

T42.0x1 Poisoning by hydantoin derivatives, accidental (unintentional)

Poisoning by hydantoin derivatives NOS

T42.0x2 Poisoning by hydantoin derivatives, intentional self-harm

T42.0x3 Poisoning by hydantoin derivatives, assault

T42.0x4 Poisoning by hydantoin derivatives, undetermined

T42.0x5 Adverse effect of hydantoin derivatives

T42.0x6 Underdosing of hydantoin derivatives

T42.1 Poisoning by, adverse effect of and underdosing of iminostilbenes

Poisoning by, adverse effect of and underdosing of carbamazepine

T42.1x Poisoning by, adverse effect of and underdosing of iminostilbenes

T42.