The type of facility can be identified by the first 2 to 4 digits of the Florida hospital identifier stored in the HCUP data element DSHOSPID

• Hospital-based ambulatory surgery centers are identified by:
• First four digits of DSHOSPID = "0010"
• First four digits of DSHOSPID = "0011"
• First four digits of DSHOSPID = "0012"
• First two digits of DSHOSPID = "23"
• Freestanding ambulatory surgery centers are identified by:
• First four digits of DSHOSPID = "0000"
• First two digits of DSHOSPID = "14"
• Freestanding radiation therapy centers are included only until December 2002. They are identified by:
• First four digits of DSHOSPID ="0020"
• Freestanding cardiac catherization laboratories are identified by:
• First four digits of DSHOSPID = "0050"
• Freestanding lithotripsy centers are identified by:
• First four digits of DSHOSPID = "0052"

Beginning in 1998, hospital identifiers that were length 6 were padded with leading zeros for consistency across data types.

In 1996 only, Iowa includes some discharges from facilities in Illinois, Missouri, Nebraska, South Dakota, and Wisconsin. These out-of-state facilities can be separated from Iowa facilities by their five-digit DSHOSPIDs; Iowa facilities have two-, three-, or four-digit DSHOSPIDs.

Beginning with the 2011 data, hospital identifiers on the Central Distributor SID, SASD, and SEDD are only available to data purchasers whose primary affiliation is with a college, university, or government agency and whose intended use of the data does not involve product development, market research, or commercial applications. This distinction is made when you purchase the Central Distributor files.

Beginning October 1, 2017, acute physical rehabilitation cases discharged from Distinct Part Units of acute care hospitals have been separated from other discharges and reported under different DSHOSPID's. These DSHOSPID's take the form of DPRnnn, where nnn represents 3-digit numbers.

Maryland supplied the Medicare Provider Number as the unique hospital identifier.

In 2000, some values of DSHOSPID have leading blanks. These DSHOSPIDs need to be left justified to be consistent with discharges from the same DSHOSPID in 2000 and other years.

CPT1 for one hospital is 100% missing in 2009.

Minnesota assigned hospital identifers specifically for the HCUP data collection process.

Beginning with data year 2020, Nebraska provided facility identifiers assigned by NHA.

Prior to data year 2020, Nebraska assigned hospital identifiers based on peer groups developed by DATABANK.

The New Jersey hospital provider identification numbers are preceded with "S" to indicate psychiatric units and "T" for rehabilitation units within the hospital.

Beginning in 2008, New York suppressed the identifier for the hospital (DSHOSPID) on records with an indication of induced abortion. These records are retained in the HCUP files with the DSHOSPID set to "BLNK". New York identifies an indication of induced abortion by ICD-9-CM diagnosis or procedure code:

• An admitting, principal, or secondary diagnosis of "6350" through "6399", or "7796".
• A principal or secondary procedure of "690", "695", "696", "6993", "738", "7491", "750", or "9649".

One freestanding clinic (DSHOSPID = 4067) was inadvertently omitted from the 1989 New York SASD files during HCUP processing. It reported three (3) discharges for 1989.

North Carolina provided facility identifiers developed by the data processing contractor.