Convert ICD-10-CM Y84.4 to ICD-9-CM

ICD-10-CM Y84.4 converts directly to:
  • 2015 ICD-9-CM E879.4 Aspiration of fluid as the cause of abnormal reaction of patient, or of later complication, without mention of misadventure at time of procedure

Source: 2020 ICD-10-CM CMS General Equivalence Mappings.