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| Data Element Name: Prior Severity of Illness for APR-DRG | File Location: Master, De-Identified |
| Record Positions: 1967 - 1967 | Format-Length: A/N - 1 |
| Effective Date: 2/2010 | Revision Date: February 2010 |
Definition:
The Severity of Illness (SOI) flag assigned to the claim using the All Patient Refined Diagnostic Related Grouper software, which was developed by 3M Health Information Systems. This information is used to categorize patient records for reimbursement and research purposes. This SOI is specific to the prior calendar year of the date of discharge.
Codes and Values:- 1 = Minor
2 = Moderate
3 = Major
4 = Extreme - See Appendix Y - Grouper Versions Used by Year Reference File Table.
- Not applicable - calculated by SPARCS.
