Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
Highest level of oxygen support received on study day NHLBI Treatment
Treatment for all conditions
NIH CDEs
  • NHLBI
    • CONNECTS
      • Organ Support

# Datatype
Value List

# Permissible value Value meaning code Value meaning definition Code system name Concept Concept source
ECMO C171507 ECMO - A technique that utilizes a device to pump a patient's blood outside of the body, oxygenate it, and return it to the body NCI C0015357 UMLS
MECHANICAL VENTILATION C70909 Mechanical Ventilation - a procedure that mechanically assists or replaces spontaneous breathing in patients by use of a powered device that forces oxygenated air into the lungs NCI C0199470 UMLS
NO O2 THERAPY LA20142-8 No O2 therapy - no supplemental oxygen LNC C4534305 UMLS
NOT ASSESSED C139527 Not assessed - Indicates that an assessment was not performed NCI C3846720 UMLS
O2 BY HIGH FLOW LA28684-1 O2 by high flow - Continuously depending on high oxygen flow LNC C4699577 UMLS
O2 BY MASK 371908008 O2 by mask - Oxygen administration by mask SNOMEDCT_US C1299377 UMLS
O2 BY NASAL PRONGS 371907003 O2 by Nasal Prongs - oxygen administration by nasal canula SNOMEDCT_US C1299376 UMLS
O2 BY NIV (INCLUDING BIPAP OR CPAP) D063087 O2 by NIV - techniques for administering artificial respiration without the need for intratracheal intubation MSH C1997883 UMLS
UNKNOWN/UNCERTAIN C17998 Unknown - Not known, observed, recorded; or reported as unknown by the data contributor NCI C0439673 UMLS

# Name Origin Origin Concept type
Noninvasive Ventilation UMLS C1997883 data element concept
Oxygen administration by nasal cannula UMLS C1299376 data element concept
Highest Level of Support UMLS C104608 data element concept
Administer oxygen at high flow rate (10 to 15 L/min) UMLS C4709666 data element concept
No O2 therapy - no supplemental oxygen UMLS C4534305 data element concept
Oxygen administration by mask UMLS C1299377 data element concept
Mechanical Ventilation UMLS C0199470 data element concept
Not Assessed UMLS C3846720 data element concept
Unknown UMLS C0439673 data element concept
Extracorporeal Membrane Oxygenation UMLS C0015357 data element concept

# Definition Sources
Oxygen Support Type - the highest level of oxygen support received on this day. NHLBI CONNECTS

# Designation Tags
What was the highest level of oxygen support the participant received on this day? Preferred Question Text
Highest level of oxygen support received on study day

# Identifier Origin Version
O2TYPE NHLBI CONNECTS ID N/A
vE1KIuwi16 NLM CDEs 12-02-2025-download