OASIS edit -5001
Edit -5001 is a fatal consistency edit in CMS's OASIS-E2 data specifications V3.02.0, effective for records with completion dates on or after 2026-04-01. A fatal edit rejects the record: "Records with fatal errors will be rejected. All fatal errors in a record must be corrected and resubmitted." It checks 6 items: M1021_PRIMARY_DIAG_ICD, M1023_OTH_DIAG1_ICD, M1023_OTH_DIAG2_ICD, M1023_OTH_DIAG3_ICD, M1023_OTH_DIAG4_ICD, M1023_OTH_DIAG5_ICD. CMS's action: "Make appropriate corrections to the records and resubmit."
What CMS's data specification says about -5001
CMS's OASIS-E2 Data Submission Specifications V3.02.0 (HTML edit page oe_5001.html, generated 11/05/2025) list edit -5001 with edit type Consistency and severity Fatal. The edit text, as CMS publishes it:
If M0100_ASSMT_REASON=[01,03] and if a value submitted in items M1021_PRIMARY_DIAG_ICD, M1023_OTH_DIAG1_ICD, M1023_OTH_DIAG2_ICD, M1023_OTH_DIAG3_ICD, M1023_OTH_DIAG4_ICD, or M1023_OTH_DIAG5_ICD is not equal to [^], it must not equal (must not duplicate) any value submitted in the remaining items in this list.
CMS's overview document defines this edit type: "Consistency edits define logical constraints among multiple items."
What the iQIES error message for -5001 says
CMS's OASIS Error Message Reference Guide v2.4 (Excel, posted 2026-02-05 on the QTSO reference manuals page) has 1 current entry for this edit. Each is copied in full, with whitespace normalised:
-5001
- Error ID
- -5001
- Severity
- Fatal
- Type
- Consistency
- Error message
- If M100_ASSMT_REASON=[01,03] and if a value submitted in items M1021_PRIMARY_DIAG_ICD, M1023_OTH_DIAG1_ICD, M1023_OTH_DIAG2_ICD, M1023_OTH_DIAG3_ICD, M1023_OTH_DIAG4_ICD, or M1023_OTH_DIAG5_ICD is not equal to [^], it must not equal (must not duplicate) any value submitted in the remaining items in this list.
- Potential cause
- The value(s) submitted in M1021 (Primary Diagnosis Severity) or M1023 (Other Diagnoses) items is not consistent with the value submitted in item M0100 (Reason for Assessment).
- Tips
- IF M0100 is 01 or 03, THEN the M1021 and M1023 items which are not skipped [^], MUST NOT be the same as a value submitted in other non-skipped items (must not have a duplicate value)
- Action
- Make appropriate corrections to the records and resubmit.
- Effective start date
- 2020-01-01
- Effective end date
- 2099-12-31 (CMS uses this date for an open-ended entry)
Items this edit checks
CMS's Item List for -5001 names 6 items.
| Item ID | Description (CMS) | Item page |
|---|---|---|
| M1021_PRIMARY_DIAG_ICD | Primary diagnosis ICD code | none yet |
| M1023_OTH_DIAG1_ICD | Other diagnosis 1: ICD code | M1023 |
| M1023_OTH_DIAG2_ICD | Other diagnosis 2: ICD code | M1023 |
| M1023_OTH_DIAG3_ICD | Other diagnosis 3: ICD code | M1023 |
| M1023_OTH_DIAG4_ICD | Other diagnosis 4: ICD code | M1023 |
| M1023_OTH_DIAG5_ICD | Other diagnosis 5: ICD code | M1023 |
Related edits
Other current edits whose CMS Item List shares one or more items with -5001:
What happens to the record
CMS's overview, section 6.4, on fatal edits: "Violation of a fatal edit will result in rejection of the submission file." CMS's iQIES error message guide: "Records with fatal errors will be rejected. All fatal errors in a record must be corrected and resubmitted."
Which records this edit applies to
Data specifications version 3.02 has an effective start date of 2026-04-01 and no end date (CMS overview, Table 1). CMS selects the edit set by the record's completion date: "When a submitted record is validated by the iQIES system, its completion date is evaluated and is used to load the appropriate set of edits for the specifications in effect on that date."
Frequently asked questions
Is OASIS edit -5001 fatal or a warning?
Fatal. CMS lists edit -5001 with severity Fatal in the OASIS-E2 data specifications V3.02.0. The CMS overview states: "Violation of a fatal edit will result in rejection of the submission file." The iQIES error guide adds: "Records with fatal errors will be rejected. All fatal errors in a record must be corrected and resubmitted."
Which OASIS items can trigger edit -5001?
CMS's Item List for edit -5001 names 6 items: M1021_PRIMARY_DIAG_ICD, M1023_OTH_DIAG1_ICD, M1023_OTH_DIAG2_ICD, M1023_OTH_DIAG3_ICD, M1023_OTH_DIAG4_ICD, M1023_OTH_DIAG5_ICD. The full list with descriptions is in the table above.
How do I fix OASIS edit -5001?
CMS's OASIS Error Message Reference Guide v2.4 gives this action for -5001: "Make appropriate corrections to the records and resubmit." Its tips: "IF M0100 is 01 or 03, THEN the M1021 and M1023 items which are not skipped [^], MUST NOT be the same as a value submitted in other non-skipped items (must not have a duplicate value)"
Which records does edit -5001 apply to?
Under version 3.02 of the data specifications, records whose completion date, item M0090_INFO_COMPLETED_DT, is on or after 2026-04-01, the effective start date CMS gives that version. Records completed earlier are checked under the version in effect on their completion date (CMS overview, Table 1 and section 3.2); the effective start date on each guide entry above is the date CMS's error guide gives that entry. The CMS overview states: "When a submitted record is validated by the iQIES system, its completion date is evaluated and is used to load the appropriate set of edits for the specifications in effect on that date."
Sources
- CMS, OASIS-E2 Data Submission Specifications V3.02.0 FINAL (zip): HTML edit page
oe_5001.htmland the Unduplicated Edits By ID Report. https://www.cms.gov/files/zip/oasis-e2-data-specs-v3-02-0-final-zip.zip (download page: https://www.cms.gov/medicare/quality/home-health/data-specifications) - CMS, OASIS Data Submission Specifications Overview, Version 3.02.0, October 29, 2025 (in the same zip).
- CMS QTSO, OASIS Error Message Reference Guide v2.4 (Excel), posted 2026-02-05. https://qtso.cms.gov/system/files/qtso/OASIS%20Error%20Message%20Reference%20Guide%20FINAL%202.4.26.xlsx
CMS text on this page is copied from CMS's documents without rewording; whitespace is normalised, and one rendering artifact in CMS's HTML (a double quote standing in for an apostrophe) is corrected to the apostrophe in CMS's PDF report. This page is maintained by Logicly, which is not affiliated with CMS. Checked against the CMS files on 2026-10-16.