Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified

**Excludes1:** - appetite depressants (T50.5-) - barbiturates (T42.3-) - benzodiazepines (T42.4-) - methaqualone (T42.6-) - psychodysleptics [hallucinogens] (T40.7-T40.9-)

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

**7th character note:** - The appropriate 7th character is to be added to each code from category T43

**7th character:** - A: initial encounter - D: subsequent encounter - S: sequela