Date and time of separation The date and time on which an admitted patient completes an episode of care, by either a formal discharge from the hospital or by a statistical type change to a subsequent episode. Length of stay (LOS) The number of days the patient spends in the hospital i.e. the number of days between the admission date and separation date (inclusive) minus the number of leave days i.e. los = sepdate - admdate - leaveday. Patients who are admitted and separated on the same calendar day have los = 1 and stayflag ='1'. Patients admitted on one day and separated the next day also have los = 1, yet have stayflag='0'. As los = sepdate - admdate - leaveday, often los = 1 and stayflag='0' for other admdate/sepdate/leaveday combinations. It is therefore wise to request admission date, separation date and leave days to calculate LOS Day stay flag Indicates whether or not the patient was admitted and 1 = Admitted and discharged same day separated from the episode of care on the same 2 = Admitted and discharged different days calendar day. Neonate only: admission Admission weight of infant (grams) weight ICD-10-AM Edition International Classification of Diseases Edition and 1 = ICD-10-AM Ed 1 Version of diagnosis, procedure and morphology codes 2 = ICD-10-AM Ed 2 3 = ICD-10-AM Ed 3 4 = ICD-10-AM Ed 4 5 = ICD-10-AM Ed 5 6 = ICD-10-AM Ed 6 7 = ICD-10-AM Ed 7 8 = ICD-10-AM Ed 8 Primary diagnosis The primary diagnosis for the episode of care ICD Edition and Version as noted in “ICD-10-AM Edition” variable Additional diagnoses The additional diagnoses affecting treatment or length ICD Edition and Version as noted in “ICD-10-AM Edition” variable of stay. Up to 99 additional diagnoses may be provided
Date and time of separation The date and time on which an admitted patient completes an episode of care, by either a formal discharge from the hospital or by a statistical type change to a subsequent episode. Length of stay (LOS) The number of days the patient spends in the hospital i.e. the number of days between the admission date and separation date (inclusive) minus the number of leave days i.e. los = sepdate - admdate - leaveday. Patients who are admitted and separated on the same calendar day have los = 1 and stayflag ='1'. Patients admitted on one day and separated the next day also have los = 1, yet have stayflag='0'. As los = sepdate - admdate - leaveday, often los = 1 and stayflag='0' for other admdate/sepdate/leaveday combinations. It is therefore wise to request admission date, separation date and leave days to calculate LOS Day stay flag Indicates whether or not the patient was admitted and separated from the episode of care on the same calendar day. 1 = Admitted and discharged same day 2 = Admitted and discharged different days Neonate only: admission weight Admission weight of infant (grams) ICD-10-AM Edition International Classification of Diseases Edition and Version of diagnosis, procedure and morphology codes 1 = ICD-10-AM Ed 1 2 = ICD-10-AM Ed 2 3 = ICD-10-AM Ed 3 4 = ICD-10-AM Ed 4 5 = ICD-10-AM Ed 5 6 = ICD-10-AM Ed 6 7 = ICD-10-AM Ed 7 8 = ICD-10-AM Ed 8 Primary diagnosis The primary diagnosis for the episode of care ICD Edition and Version as noted in “ICD-10-AM Edition” variable Additional diagnoses The additional diagnoses affecting treatment or length of stay. Up to 99 additional diagnoses may be provided ICD Edition and Version as noted in “ICD-10-AM Edition” variable
act_apc_data_dictionary_current_mar-2018.docx