T40: Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens]
excludes2
drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.-F19.-)
sevenChrNote
The appropriate 7th character is to be added to each code from category T40
sevenChrDef
A: initial encounter
D: subsequent encounter
S: sequela
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