Submitting OASIS to iQIES

The Internet Quality Improvement and Evaluation System (iQIES) is the CMS web-based system through which home health agencies submit OASIS assessments and access CASPER quality reports. iQIES replaced the legacy QIES ASAP system in January 2020 and uses HARP (Healthcare Quality Information System Access Roles and Profiles) for user authentication.

OASIS submission files must conform to the current OASIS-E2 Data Specifications XML schema. Each record contains a header (with agency CCN, record ID, M0100 RFA, M0090 date, and other administrative items) and a body (with the OASIS-E2 item responses). Files may contain a single record or multiple records batched together.

To submit OASIS records through iQIES: log in via HARP, navigate to the OASIS Submissions module, upload the XML file, await validation processing, and review the validation report. Successful records are accepted into the database; rejected records remain pending and must be corrected and resubmitted.

iQIES validation edits fall into three categories: fatal edits (record is rejected and not stored), warning edits (record is accepted but flagged for review), and informational edits (record is accepted with no quality impact). Common fatal categories include schema violations, invalid agency CCN, RFA inconsistency with prior records, and missing required items at the assigned timepoint.

Rejected records are not retained in the iQIES database. Agencies must correct the underlying error and resubmit the record as a new submission. The 30-day transmission deadline is calculated from the M0090 date and is not extended by rejection — agencies that resubmit close to or beyond the 30-day mark may incur lateness flags in CASPER.