Y493-char group
Psychotropic drugs, not elsewhere classified
⇄ Primary-code rule changed vs QĐ4469
Coding rules (TT06)
- ●Cannot be used as primary diagnosis
- ●Avoid — more specific 4-5 char codes exist (see below)
Coding guidance (WHO 2019)
Excl.: appetite depressants [anorectics] (Y57.0) barbiturates NEC (Y47.0) benzodiazepines (Y47.1) caffeine (Y50.2) cocaine (Y48.3) methaqualone (Y47.8)
Codes within Y49
Y49.0Tricyclic and tetracyclic antidepressantsY49.1Monoamine-oxidase-inhibitor antidepressantsY49.2Other and unspecified antidepressantsY49.3Phenothiazine antipsychotics and neurolepticsY49.4Butyrophenone and thioxanthene neurolepticsY49.5Other antipsychotics and neurolepticsY49.6Psychodysleptics [hallucinogens]Y49.7Psychostimulants with abuse potentialY49.8Other psychotropic drugs, not elsewhere classifiedY49.9Psychotropic drug, unspecified