OASIS edit -3300: Inconsistent Dates
Edit -3300 is a warning consistency edit in CMS's OASIS-E2 data specifications V3.02.0, effective for records with completion dates on or after 2026-04-01. iQIES reports it as "Inconsistent Dates". A warning does not block the record: CMS's overview says a warning "will not prevent the submitted assessment data from being accepted and stored in the iQIES system." The iQIES error guide adds: "All warning errors should be reviewed and corrected if appropriate, to ensure the data uploaded is accurate and complete." It checks 3 items: M0030_START_CARE_DT, M0090_INFO_COMPLETED_DT, M0100_ASSMT_REASON. CMS's action: "Make appropriate corrections to the records and resubmit."
What CMS's data specification says about -3300
CMS's OASIS-E2 Data Submission Specifications V3.02.0 (HTML edit page oe_3300.html, generated 11/05/2025) list edit -3300 with edit type Consistency and severity Warning. The edit text, as CMS publishes it:
If M0100_ASSMT_REASON=[01] and if M0090_INFO_COMPLETED_DT and M0030_START_CARE_DT are both active and contain valid dates (not [^]), then M0090_INFO_COMPLETED_DT minus M0030_START_CARE_DT should be greater than or equal to zero and less than or equal to 5.
CMS's overview document defines this edit type: "Consistency edits define logical constraints among multiple items."
What the iQIES error message for -3300 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:
-3300
- Error ID
- -3300
- Severity
- Warning
- Type
- Consistency
- Error message
- Inconsistent Dates: If M0100 is equal to 01, then M0090 minus M0030 should be greater than or equal to zero and less than or equal to 5 days.
- Potential cause
- The assessment was not completed within CMS timing guidelines.
- Tips
- IF M0100 (Reason for Assessment) is 01 and M0090 (Date Assessment Completed) and M0030 (Start of Care Date) are both active and are not blank (^), THEN M0090 minus M0030 should be greater than or equal to zero but no more than 5 calendar days.
- Action
- Make appropriate corrections to the records and resubmit.
- Effective start date
- 2010-01-01
- Effective end date
- 2099-12-31 (CMS uses this date for an open-ended entry)
Items this edit checks
CMS's Item List for -3300 names 3 items.
Related edits
Other current edits whose CMS Item List shares one or more items with -3300 (the broad -3060 value edit, which covers 365 items, is left out):
| Edit ID | Severity | Type | iQIES label | Items shared |
|---|---|---|---|---|
| -7050 | Fatal | Consistency | No Match Found | 3 |
| -3070 | Fatal | Format | Invalid Date | 2 |
| -3261 | Fatal | Consistency | Inconsistent Dates | 2 |
| -3271 | Fatal | Consistency | Inconsistent Dates | 2 |
| -3280 | Warning | Consistency | Inconsistent Dates | 2 |
| -3310 | Warning | Consistency | Inconsistent Dates | 2 |
| -3320 | Warning | Consistency | Inconsistent Dates | 2 |
| -5340 | Fatal | Consistency | Inconsistent Dates | 2 |
What happens to the record
CMS's overview, section 6.4, on warning edits: "Violation of a warning edit will result in a warning message on the user feedback report. However, a warning will not prevent the submitted assessment data from being accepted and stored in the iQIES system." CMS's iQIES error message guide: "All warning errors should be reviewed and corrected if appropriate, to ensure the data uploaded is accurate and complete."
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 -3300 fatal or a warning?
A warning. CMS lists edit -3300 with severity Warning in the OASIS-E2 data specifications V3.02.0. The CMS overview states: "Violation of a warning edit will result in a warning message on the user feedback report. However, a warning will not prevent the submitted assessment data from being accepted and stored in the iQIES system."
Which OASIS items can trigger edit -3300?
CMS's Item List for edit -3300 names 3 items: M0030_START_CARE_DT, M0090_INFO_COMPLETED_DT, M0100_ASSMT_REASON. The full list with descriptions is in the table above.
How do I fix OASIS edit -3300?
CMS's OASIS Error Message Reference Guide v2.4 gives this action for -3300: "Make appropriate corrections to the records and resubmit." Its tips: "IF M0100 (Reason for Assessment) is 01 and M0090 (Date Assessment Completed) and M0030 (Start of Care Date) are both active and are not blank (^), THEN M0090 minus M0030 should be greater than or equal to zero but no more than 5 calendar days."
Which records does edit -3300 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_3300.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.