Central Distributor SID: Description of Data Elements

DXPOAn - Diagnosis n, present on admission indicator

Documentation Sections:

General Notes

Uniform Values

State Specific Notes

General Notes

DXPOAn indicates whether each diagnosis (DXn) was present at admission. This provides an indicator of complications arising during a hospitalization. The coding of this data element is consistent with the UB-04 standards. No edits checks are performed on this data element during HCUP processing. Beginning with the 2017 HCUP databases, external cause of morbidity codes are included with other diagnoses in the diagnosis-related data elements (I10_DXn, I10_NDX, and DXPOAn) and are no longer retained in separate data elements (I10_ECAUSEn, I10_NECAUSE, and E_POAn). From 1998 to 2006, this data element was called DXatAdmitn and coded with 0/1 values. Before 1998, this data element is called TMDXn.

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Uniform Values

Variable Description Value Value Description DXPOAn Diagnosis n, present on admission indicator Y Yes N No W Clinically undetermined U Documentation is insufficient to determine if condition is present on admission E, 1, or X Exempt from POA reporting Blank Acceptable value on diagnoses that are exempt from POA reporting. Indicates missing information on nonexempt diagnoses.

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State Specific Notes

Alaska Alaska IPOAn DXPOAn Value Description Value Description Y Yes Y Yes N No N No U Unknown U Unknown W Clinically undetermined W Clinically undetermined     E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting Blank Missing Blank Missing Other Invalid Arizona For 2011, the data source has informed us that some hospitals had problems reporting Present on Admission indicators. We recommend checking hospital statistics before using this data element. In 2010 only, the DXPOAn data elements have been suppressed for one hospital that provided erroneous data for the indicators that the diagnosis was present on admission on most of its discharges. Arizona IPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U Unknown U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Unreported, not used; Exempt from POA reporting 1 Exempt from POA reporting Blank Missing Blank Missing Other Invalid Arkansas Arkansas IPOAn DXPOAn Value Description Value Description Y Yes - present at the time of inpatient admission Y Yes / Present at time of inpatient admission N No - not present at the time of inpatient admission N No / Not present at time of inpatient admission U No information in the record U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not e or E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting -   X Exempt from POA reporting Blank Missing Blank Missing Other Invalid California California IPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U Unknown U No information on the record W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting 0 Missing or Invalid blank Missing Blank, "-" Missing Other Invalid Delaware Delaware IPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U Unknown U Unknown W Clinically undetermined W Clinically undetermined E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting blank Missing blank Missing Other Invalid Florida Florida (Valid beginning in 2011) IDXPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient N No N No / Not present at time of inpatient admission U Unknown U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting -- -- X Exempt from POA reporting Blank Missing Blank Missing Other Invalid Blank Missing Florida (Valid 2010 Only) IPOAn DXPOAn Value Description Value Description Y Yes Y Yes N No N No U Unknown U Unknown W Clinically undetermined W Clinically undetermined 1 Exempt E Exempt from POA reporting E Exempt Blank   Blank Missing or Invalid Other Any undocumented value Florida (Valid prior to 2010) IPOAn DXPOAn Value Description Value Description Y, 1 Yes Y Yes N, 2 No N No U, 3 Unknown U Unknown W Clinically undetermined W Clinically undetermined E Exempt E Exempt from POA reporting Blank   Other Any undocumented value Blank Missing or Invalid Georgia Georgia IPOAn DXPOAn Value Description Value Description Y Yes Y Yes N No N No U Unknown U Unknown W Clinically undetermined W Clinically undetermined - -- E Exempt from POA reporting 1 Exempt from POA reporting 1 - -- X Blank Missing Blank Missing Other Invalid Hawaii Hawaii IPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U No Information in the record U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting blank Missing Blank Missing Other Invalid Indiana Indiana (Valid Beginning in 2009) IPOAn DXPOAn Value Description Value Description Y, y Yes Y Yes / Present at time of inpatient admission N, n No N No / Not present at time of inpatient admission U, u No info in the record U Unknown W, w Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E, e Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting Blank Missing Blank Missing Other Invalid Iowa For 2010-2021, the data source has informed us that some hospitals had problems reporting Present on Admission indicators. We recommend checking hospital statistics before using this data element. Iowa IPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U Unknown U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting Blank Unreported/Not used, Code exempt from POA reporting Blank Missing Other Any documented values Other Invalid Kansas Kansas IPOAn DXPOAn Value Description Value Description Y Diagnosis was present at time of admission Y Yes N Diagnosis was not present at time of admission N No U Unknown - documentation insufficient to determine U Unknown W Clinically undetermined W Clinically undetermined E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting Blank Missing Blank Missing Other Invalid Kentucky Prior to 2009, discharges with source value "blank" were incorrectly mapped to "E" (Exempt from POA Reporting). Beginning in 2009, these blank values were correctly mapped to missing. Kentucky IPOAn DXPOAn Value Description Value Description Y Yes Y Yes N No N No U Unknown U Unknown W Clinically undetermined W Clinically undetermined -- -- E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting -- -- X Exempt from POA reporting Blank Missing Blank Missing Other Invalid Maine In 2009, the primary present on admission indicator was not provided and therefore it is 100% blank. Beginning in 2008, Maine supplies present on admission indicator for diagnoses. During HCUP processing, blank values for POA were set to missing; these values may indicate Exempt from POA reporting. Maine IE_POAn E_POAn Value Description Value Description y, Y Yes Y Yes n, N No N No u, U Unknown U Unknown w, W Clinically undetermined W Clinically undetermined e, E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting Blank Missing Blank Missing Other Invalid Blank Missing Maryland Maryland (Beginning in 2011) IPOAn DXPOAn Value Description Value Description y or Y Diagnosis Present on Admission Y Yes / Present at time of inpatient admission N Diagnosis Not Present on Admission N No / Not present at time of inpatient admission U Diagnosis Insufficient Documentation to Determine U Unknown W Diagnosis Unable to Clinically Determine W Provider is unable to clinically determine whether condition was present on admission or not E Diagnosis Exempt from reporting E Exempt from POA reporting     1 Exempt from POA reporting Blank Missing Blank Missing 1, Other Invalid Beginning in 2008, a new value, 1 "Exempt from POA reporting", was added. Maryland (2008 - 2010) IPOAn DXPOAn Value Description Value Description y or Y Yes Y Yes N No N No U Unknown/Insufficient Documentation to Determine U Unknown W Clinically undetermined/Unable to Clinically Determine W Clinically undetermined E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting Blank Missing Blank Missing Other Invalid Maryland (2007) IPOAn DXPOAn Value Description Value Description y or Y Yes Y Yes N No N No U Unknown/Insufficient Documentation to Determine U Unknown W Clinically undetermined/Unable to Clinically Determine W Clinically undetermined E Exempt from POA reporting E Exempt from POA reporting Blank Missing Blank Missing Massachusetts Beginning with 2007, Massachusetts provided diagnosis present on admission indicator. Massachusetts IPOAn DXPOAn Value Description Value Description Y Yes Y Yes/Present at time of inpatient admission N No N No/Not present at time of inpatient admission U Unknown U Documentation is insufficient to determine if condition is present on admission W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E or A Not applicable E Exempt from POA reporting 1 Not applicable 1 Exempt from POA reporting     X Blank Not applicable Blank Exempt from POA reporting: Acceptable value on diagnoses that are exempt from POA reporting. Indicates missing information on nonexempt diagnoses. "-" Any undocumented value Blank Missing/Invalid Michigan Michigan (Valid beginning in 2011) IDXPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U Unknown U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting 0 Missing Blank Missing Blank Missing Other Invalid Michigan (Valid 2010 Only) IE_POAn E_POAn Value Description Value Description Y Yes Y Yes N No N No U Unknown U Unknown W Clinically undetermined W Clinically undetermined 1 Exempt from POA reporting E Exempt from POA reporting 0 Missing Blank Missing Blank Missing Other Invalid Minnesota Minnesota IPOAn DXPOAn Value Description Value Description Y Diagnosis was present at time of admission. Y Yes N Diagnosis was not present at time of admission N No U Unknown - documentation insufficient to determine U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Unreported/Not used. Exempt from POA reporting 1 Exempt from POA reporting - Exempt from POA reporting X Exempt from POA reporting Blank Missing Blank Missing Other Invalid Mississippi Mississippi IPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U No information in the record U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not -- -- E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting     X Exempt from POA reporting Blank Code exempt from POA reporting/Missing Blank Missing Other Invalid Missouri Missouri IE_POAn E_POAn Value Description Value Description Y Yes Y Yes N No N No U Unknown U Unknown W Clinically undetermined W Clinically undetermined -- -- E Exempt from POA reporting 1 Exempt from POA reporting 1 -- -- X Blank Missing Blank Missing Other Invalid Nebraska Nebraska IPOAn DXPOAn Value Description Value Description Y Yes Y Yes N No N No U Unknown U Unknown W Clinically undetermined W Clinically undetermined -- Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting -- Exempt from POA reporting X Exempt from POA reporting Blank Missing Blank Missing Other Invalid Nevada Values 1, E, Z were mapped to "E" Exempt from POA reporting, in NV 2008 data. Nevada IPOAn DXPOAn Value Description Value Description Y or y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U or u Not enough information in the record U Documentation is insufficient to determine if condition is present on admission W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting Z Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting blank Missing blank Missing Other Invalid blank Missing New Jersey New Jersey (Valid beginning in 2011) IPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U No information in the record U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not -- -- E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting (blank) Missing Blank Missing (other) Invalid New Jersey (Valid in 2008 & 2010) IPOAn DXPOAn Value Description Value Description Y Yes Y Yes N No N No U No information in the record U Unknown W Clinically undetermined W Clinically undetermined 1 Exempt from POA reporting E Exempt from POA reporting E Exempt from POA reporting (blank) Missing Blank Missing (other) Invalid New Jersey (2009) IPOAn DXPOAn Value Description Value Description Y Yes Y Yes N No N No U No information in the record U Unknown W Clinically undetermined W Clinically undetermined 1 Exempt from POA reporting Blank Missing E Exempt from POA reporting (blank) Missing (other) Invalid New Mexico New Mexico IPOAn DXPOAn Value Description Value Description Y Yes / Present at time of inpatient admission Y Yes N No N No / Not present at time of inpatient admission U No information on the record U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting E Exempt from POA reporting (2009-2010) 1 Exempt from POA reporting 1 Exempt from POA reporting(Valid starting in 2011) (blank)   blank Missing other   New York Prior to 2017, an indication that the principal diagnosis was present on admission (POA) was not provided by the HCUP Partner in New York. Because the principal diagnosis was, by definition, present at the time of admission, DXPOA1 was imputed to a value of one for all records. New York (Valid beginning 2017) IPOAn DXPOAn Value Description Value Description Y Yes, Present at the time of admission Y Yes/Present at time of inpatient admission N No, Not present at the time of admission N No/Not present at time of inpatient admission W Clinical Undetermined - Provider is uable to clinically determine whether condition was present on admission or not W Clinically undetermined U Unknown - Documentation is insufficient to deterimn if conditon is present on admission U Documentation is insufficient to determine if condition is present on admission 1 Exempt from POA reporting 1 Exempt from POA reporting blank Missing blank Missing other Invalid New York (Valid prior to 2017) IPOAn DXPOAn Value Description Value Description 2 No, not present at time of admission N Not present at time of inpatient admission 1 Yes, present at the time of admission Y Present at time of inpatient admission 3 Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not 9 Unknown U Unknown X Exempt from POA reporting X Exempt from POA reporting blank Missing blank Missing other Invalid North Carolina North Carolina IPOAn DXPOAn Value Description Value Description Y Yes Y Yes N No N No U Unknown U Unknown W Clinically undetermined W Clinically undetermined - Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting - Exempt from POA reporting X Exempt from POA reporting Blank Missing Blank Missing Other Invalid Oregon Beginning in 2018, blank source values will be recoded to blank (Missing). For 2011-2017, blank source values are recoded to "1" (Exempt). For 2010, blank source values are recoded to "E" (Exempt). For 2009, the source values of "1"s and blanks were recoded to "Missing or Invalid" instead "Exempt from POA Reporting". Oregon (Valid Beginning in 2008) IPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U No information in the record U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not - Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting (blank) Exempt from POA reporting (blank) Missing (other)   Rhode Island Rhode Island IPOAn DXPOAn Value Description Value Description Y Diagnosis was present at time of admission Y Yes N Diagnosis was not present at time of admission N No U Unknown - documentation insufficient to determine U Unknown W Clinically undetermined W Clinically undetermined E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting -- -- X Exempt from POA reporting Blank Missing Blank Missing Other Invalid South Carolina South Carolina (Valid Beginning in 2008) IPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U Unknown U No information on the record W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting blank Missing blank Missing other Invalid South Dakota From 2008-2009, this data element was only collected on Medicare patients. South Dakota IDXPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient N No N No / Not present at time of inpatient admission U Unknown U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting Blank Missing Blank Missing Other Invalid Blank Missing Vermont Vermont IPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U Unknown U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting blank, other   Blank Missing Washington Washington IPOAn DXPOAn Value Description Value Description Y Yes Y Yes / Present at time of inpatient admission N No N No / Not present at time of inpatient admission U No information in the record U Unknown W Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Exempt from POA reporting Blank   Blank Missing Other   West Virginia West Virginia IPOAn DXPOAn Value Description Value Description Y Yes (Diagnosis was present at the time of inpatient admission) Y Yes / Present at time of inpatient admission N No (Diagnosis was not present at the time of inpatient admission) N No / Not present at time of inpatient admission U No Information in the Record (Documentation insufficeitent to detemrine if condition was present at the time of inpatient admission) U Unknown W Clinically undetermined (Provider unable to clinically determine whether condition was present at the time of inpatient admission) W Provider is unable to clinically determine whether condition was present on admission or not     E Exempt from POA reporting 1 Exempt from POA reporting (valid prior to 2014) 1 Exempt from POA reporting     X Hospital exempt from POA reporting 1, b, or blank Missing blank Missing other Invalid Wisconsin Wisconsin IDXPOAn DXPOAn Value Description Value Description Y, y Yes Y Yes / Present at time of inpatient admission N, n No N No / Not present at time of inpatient admission U, u Unknown U Unknown W, w Clinically undetermined W Provider is unable to clinically determine whether condition was present on admission or not E, e Exempt from POA reporting E Exempt from POA reporting 1 Exempt from POA reporting 1 Blank Exempt from POA Blank Missing Other Invalid

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