ICD-9-CM Diagnosis Code 999.62
Diagnosis Code: 999.62 (Raw: 99962)
Description: ABO incompatibility with acute hemolytic transfusion reaction
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 999.62 is designated for ABO incompatibility with acute hemolytic transfusion reaction. While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical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.
