Beginning in 2006, please see REVCHGn for detailed charge information. CHGn is no longer included in KY SID.

Detailed charges (CHGn) are associated with identified revenue centers (REVCDn) and units of service (UNITn). For example, CHG1 applies to the revenue center in REVCD1 and the units of service specified in UNIT1. Kentucky reports detailed charges (CHGn) associated with standard UB-92 revenue codes stored in REVCDn. Kentucky does not collapse or redefine ranges of revenue codes.

In addition, prior to data year 2005, information on total charges (revenue center 001) was removed from the detailed charge arrays. (CHGn, REVCDn, and UNITn). Information on total charges is available in the HCUP variables TOTCHG and TOTCHG_X.

UNITn field in the MD SID 2008 included less than 1% of erroneous unit of service codes (0.02%).

The charge and unit detail provided by Massachusetts varies across years.

• Starting in 2007: Detailed charges (REVCHGn) are associated with the UB-92 revenue centers (REVCDn), and units of service (UNITn). For example, REVCHG1 applies to the revenue center in REVCD1 and the units of service are specified in UNIT1.



• Starting in 1999: Detailed charges (CHGn) are associated with the UB-92 revenue centers (REVCDn), and units of service (UNITn). For example, CHG1 applies to the revenue center in REVCD1 and the units of service are specified in UNIT1. Massachusetts provides 110 revenue codes, detail charges, and units, but not all revenue centers (REVCDn) have an associated charge (CHGn) = .). During HCUP processing, the array of revenue codes, charges, and units are condensed so that only the revenue codes that have non-missing charges are retained. No information is lost.



• In 1998: Detailed charges (CHGn) are associated with the UB-92 revenue centers (REVCDn) and units of service (UNITn). For example, CHG1 applies to the revenue center in REVCD1 and the units of service are specified in UNIT1. Massachusetts provides 110 revenue codes, detail charges, and units, but not all revenue centers (REVCDn) have a charge (CHGn = .). The revenue codes are constant across records. For example, REVCD1 = 111 on all discharges even if there is not charge (CHG1 = .) and units (UNIT1 = .) for the revenue center.



• 1994-1997: Massachusetts reported charge details and units by specific UB-92 revenue centers. The detailed charges and units are retained on the HCUP files in assigned positions. For example, CHG1 is always for UB-92 revenue code 111 "Routine Medical/Surgical." Refer to the tables below for UNITn revenue center definitions for 1994-1997 files. Definitions of detail charges (CHGn) and units (UNITn) in the HCUP Massachusetts files do not necessarily match definitions in earlier years.



• 1988-1993: Massachusetts reported charge details and units by aggregated revenue center categories. Hospitals were responsible for mapping UB-82 revenue center codes into Massachusetts' revenue center categories. For example, all laboratory charges that would be charged to UB-82 revenue codes 300-312, 314, 319, and 971 were aggregated and reported to Massachusetts under one category. The detailed charges and units are retained on the HCUP files in assigned positions. Refer to the tables below for UNITn revenue center definitions for 1988-1993 files.

The HCUP Massachusetts files for 1988-1993 include an "unknown revenue center" charge (UNIT43) that is not included for subsequent years. Detailed charges, excluding the "unknown revenue center" charges, can be summed to the total charges (TOTUNIT and TOTUNIT_X).

Unit Categories in 1994-1997

In 1994-1997, Massachusetts provided 81 charge and unit categories. Beginning in the 4th quarter of 1997, seven more unit categories (UNIT82-UNIT88) were added. Data quality problems often appear in the first year that data elements are added, so use these data elements with caution. The following are the UB-92 revenue centers associated with each variable:

Charge Categories in 1988-1993

For 1988-1993, Massachusetts provided 43 charge categories. The following are the revenue centers associated with each variable:

Detailed charges (CHGn) are associated with the identified revenue centers (REVCDn) and units of service (UNITn). For example, CHG1 applies to the revenue center in REVCD1 and the units of service specified in UNIT1.

In the rare event that there were more revenue charges than could be retained in the array of revenue codes, charges, and units, Nevada set the revenue code to "9999", the charge to the sum of the remaining charges, and the units to the sum of the remaining units.

Beginning in 2008, New Jersey provided units of service assocaited with specific revenue centers.

Units of services assocaited with unit categories were discontinued in 2008.

The unit categories from New Jersey are:

Beginning in 2002, detailed charges (CHGn) are associated with the identified revenue centers (REVCDn) and units of service (UNITn), and daily rates (RATEn). For example, CHG1 applies to the revenue center in REVCD1, the units of service specified in UNIT1, and the rate in RATE1. North Carolina reports detailed charges (CHGn) associated with standard UB-92 revenue codes stored in REVCDn.

For 2002-2003 data, charge detail was incorrect for about 1% of the discharges. Some facilities in North Carolina reused their record identifiers across fiscal years (starting each October). This means that two distinct discharges share an identical state-supplied record identifier. The charge detail for the different discharges were erroneously combined because of the identical record identifiers. There is no way to determine which HCUP records have this problem.

Prior to 2002, North Carolina provided 10 detail charges.

Detailed charges (CHGn) are associated with identified revenue centers (REVCDn), units of service (UNITn) and rates (RATEn). For example, CHG1 applies to the revenue center in REVCD1, the units of service specified in UNIT1, and the rate in RATE1. Arkansas reports detailed charges (CHGn) associated with standard UB-92 revenue codes stored in REVCDn. Arkansas does not collapse or redefine ranges of revenue codes.

In rare instances, Arkansas reported total charges in the detailed charge arrays (REVCDn = "0001 "). When this occurred, the corresponding revenue code, detail charge, rate, and unit were retained as detailed charges. For all records, Arkansas reported a separate total charges field which is available in the HCUP variables TOTCHG and TOTCHG_X.

Negative values were set to invalid (.A) during HCUP processing.

Beginning in 2005 South Carolina provided the charge detail in a separate, linkable file that included detailed charges which are associated with revenue centers and units of service. Due to incomplete charge information, this information was not retained on the HCUP databases in 2005. The line item revenue codes were used to assign the HCUP outpatient identifiers (HCUP_AS, HCUP_ED, and HCUP_OS) and also used to subtract professional fees from total charges but there is no detailed charge information on the 2005 South Carolina SASD and SEDD.

Prior to 2005, South Carolina provided HCUP with discretely defined charge buckets, and associated units of service.

From 1996-2005

South Carolina supplied 19 unit categories:

Prior to 1995

South Carolina supplied 11 unit categories:

Units of service (UNITn) refer to the revenue centers (REVCDn) and are reflected in the detailed charges (CHGn). For example, CHG1 applies to the revenue center in REVCD1 and the units of service specified in UNIT1.

Units are not required for all revenue sources; the units field may be coded as missing (.) or zero. See notes under revenue codes (REVCDn) for the associated units.

for 2000-2004, if total charges are identified in the detail charges (REVCDn = "001"), the corresponding detail charge, unit, and revenue code are set to missing. Beginning with 2005, total charges are kept in the detailed charges.

Detailed charges (CHGn) are associated with identified revenue centers (REVCDn) and units of service (UNITn). For example, CHG1 applies to the revenue center in REVCD1 and the units of service specified in UNIT1. West Virginia reports detailed charges (CHGn) associated with standard UB-92 revenue codes stored in REVCDn. West Virginia does not collapse or redefine ranges of revenue codes.

The first 12 variables in each array (CHG1-CHG12, REVCD1-REVCD12, and UNIT1-UNIT12) are reserved for room and board services; the remaining variables are used for ancillary services.