<status value="active"/><experimental value="false"/><date value="2026-03-29T21:54:20+00:00"/><publisher value="HL7 International / FHIR Infrastructure"/><contact><telecom><system value="url"/><value value="http://hl7.org/fhir"/></telecom><telecom><system value="email"/><value value="fhir@lists.hl7.org"/></telecom></contact><contact><telecom><system value="url"/><value value="http://www.hl7.org/Special/committees/fiwg"/></telecom></contact><description value="Real-world event relating to the schedule."/><jurisdiction><coding><system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/><code value="001"/><display value="World"/></coding></jurisdiction><caseSensitive value="true"/><content value="complete"/><concept><code value="MORN"/><display value="Morning"/><definition value="Event occurs during the morning. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="MORN.early"/><display value="Early Morning"/><definition value="Event occurs during the early morning. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="MORN.late"/><display value="Late Morning"/><definition value="Event occurs during the late morning. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="NOON"/><display value="Noon"/><definition value="Event occurs around 12:00pm. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="AFT"/><display value="Afternoon"/><definition value="Event occurs during the afternoon. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="AFT.early"/><display value="Early Afternoon"/><definition value="Event occurs during the early afternoon. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="AFT.late"/><display value="Late Afternoon"/><definition value="Event occurs during the late afternoon. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="EVE"/><display value="Evening"/><definition value="Event occurs during the evening. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="EVE.early"/><display value="Early Evening"/><definition value="Event occurs during the early evening. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="EVE.late"/><display value="Late Evening"/><definition value="Event occurs during the late evening. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="NIGHT"/><display value="Night"/><definition value="Event occurs during the night. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="PHS"/><display value="After Sleep"/><definition value="Event occurs [offset] after subject goes to sleep. The exact time is unspecified and established by institution convention or patient interpretation."/></concept><concept><code value="IMD"/><display value="Immediate"/><definition value="Event occurs a single time (with no repetitions) as soon as possible after the scheduled or actual start of the overall event."/></concept></CodeSystem>

Generated Narrative: CodeSystem event-timing

This case-sensitive code system http://hl7.org/fhir/event-timing defines the following codes:

Code	Display	Definition
MORN	Morning	Event occurs during the morning. The exact time is unspecified and established by institution convention or patient interpretation.
MORN.early	Early Morning	Event occurs during the early morning. The exact time is unspecified and established by institution convention or patient interpretation.
MORN.late	Late Morning	Event occurs during the late morning. The exact time is unspecified and established by institution convention or patient interpretation.
NOON	Noon	Event occurs around 12:00pm. The exact time is unspecified and established by institution convention or patient interpretation.
AFT	Afternoon	Event occurs during the afternoon. The exact time is unspecified and established by institution convention or patient interpretation.
AFT.early	Early Afternoon	Event occurs during the early afternoon. The exact time is unspecified and established by institution convention or patient interpretation.
AFT.late	Late Afternoon	Event occurs during the late afternoon. The exact time is unspecified and established by institution convention or patient interpretation.
EVE	Evening	Event occurs during the evening. The exact time is unspecified and established by institution convention or patient interpretation.
EVE.early	Early Evening	Event occurs during the early evening. The exact time is unspecified and established by institution convention or patient interpretation.
EVE.late	Late Evening	Event occurs during the late evening. The exact time is unspecified and established by institution convention or patient interpretation.
NIGHT	Night	Event occurs during the night. The exact time is unspecified and established by institution convention or patient interpretation.
PHS	After Sleep	Event occurs [offset] after subject goes to sleep. The exact time is unspecified and established by institution convention or patient interpretation.
IMD	Immediate	Event occurs a single time (with no repetitions) as soon as possible after the scheduled or actual start of the overall event.