An image of a stethoscope placed on a laptop, representing the intersection of technology and medical care

The CMS Data Element Library (DEL) is the centralized resource for CMS assessment instrument data elements (e.g. questions and responses) and their associated health information technology (IT) standards.

The DEL does not contain patient health information (PHI).

What is the purpose of the DEL?

  • Promotes interoperable health information exchange
  • Supports "Patients over Paperwork"
  • Assists with standardization of assessment data elements to help facilitate care coordination

What is included in the DEL?

Care Settings

CMS Assessment Instrument

Inpatient Rehabilitation Facilities (IRFs)

IRF Patient Assessment Instrument (IRF-PAI)

Home Health Agencies (HHAs)

Outcome and Assessment Information Set (OASIS)

Long-Term Care Hospitals (LTCHs)

LTCH Continuity Assessment Record and Evaluation (CARE) Data Set (LCDS)

Skilled Nursing Facilities (SNFs)

Minimum Data Set (MDS)

Hospice Care

Hospice Item Set (HIS)

Home and Community-Based Services (HCBS)

Functional Assessment Standardized Items (FASI)