diagnosis codes for mental healthunspecified diagnosisicd 10 psychiatric codesicd 10 code for osteoporosisicd code for schizophreniabone density diagnosis codeicd 9 code for back pain unspecifiedschizophrenia diagnosis icd 10icd 9 code for chest pain unspecifiedicd 9 code for neck pain unspecifieddx code osteoporosisdx code for schizophrenia