ICD-9-CM Diagnosis Code E939.3
Diagnosis Code: E939.3 (Raw: E9393)
Description: Other antipsychotics, neuroleptics, and major tranquilizers causing adverse effects in therapeutic use
Classification: International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM)
Fiscal Year: 2026 Reference
CMS Section 111 Status: Valid for reporting.
Overview & Historical Usage
ICD-9-CM code E939.3 is designated for Other antipsychotics, neuroleptics, and major tranquilizers causing adverse effects in therapeutic use. While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical clinical data analysis.