Terminology
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| Responsible Owner: FHIR Infrastructure Work Group | Standards Status : Informative |
Raw JSON ( canonical form + also see JSON Format Specification )
Definition for Code SystemEventTiming
{
"resourceType" : "CodeSystem",
"id" : "event-timing",
"meta" : {
"lastUpdated" : "2023-03-26T15:21:02.749+11:00"
"lastUpdated" : "2025-11-20T23:56:49.898+00:00"
},
"text" : {
"status" : "generated",
"div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p>This code system <code>http://hl7.org/fhir/event-timing</code> defines the following codes:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style=\"white-space:nowrap\">MORN<a name=\"event-timing-MORN\"> </a></td><td>Morning</td><td>Event occurs during the morning. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">MORN.early<a name=\"event-timing-MORN.46early\"> </a></td><td>Early Morning</td><td>Event occurs during the early morning. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">MORN.late<a name=\"event-timing-MORN.46late\"> </a></td><td>Late Morning</td><td>Event occurs during the late morning. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">NOON<a name=\"event-timing-NOON\"> </a></td><td>Noon</td><td>Event occurs around 12:00pm. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">AFT<a name=\"event-timing-AFT\"> </a></td><td>Afternoon</td><td>Event occurs during the afternoon. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">AFT.early<a name=\"event-timing-AFT.46early\"> </a></td><td>Early Afternoon</td><td>Event occurs during the early afternoon. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">AFT.late<a name=\"event-timing-AFT.46late\"> </a></td><td>Late Afternoon</td><td>Event occurs during the late afternoon. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">EVE<a name=\"event-timing-EVE\"> </a></td><td>Evening</td><td>Event occurs during the evening. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">EVE.early<a name=\"event-timing-EVE.46early\"> </a></td><td>Early Evening</td><td>Event occurs during the early evening. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">EVE.late<a name=\"event-timing-EVE.46late\"> </a></td><td>Late Evening</td><td>Event occurs during the late evening. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">NIGHT<a name=\"event-timing-NIGHT\"> </a></td><td>Night</td><td>Event occurs during the night. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">PHS<a name=\"event-timing-PHS\"> </a></td><td>After Sleep</td><td>Event occurs [offset] after subject goes to sleep. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">IMD<a name=\"event-timing-IMD\"> </a></td><td>Immediate</td><td>Event occurs a single time (with no repetitions) as soon as possible after the scheduled or actual start of the overall event.</td></tr></table></div>"
"div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem event-timing</b></p><a name=\"event-timing\"> </a><a name=\"hcevent-timing\"> </a><p>This case-sensitive code system <code>http://hl7.org/fhir/event-timing</code> defines the following codes:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style=\"white-space:nowrap\">MORN<a name=\"event-timing-MORN\"> </a></td><td>Morning</td><td>Event occurs during the morning. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">MORN.early<a name=\"event-timing-MORN.46early\"> </a></td><td>Early Morning</td><td>Event occurs during the early morning. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">MORN.late<a name=\"event-timing-MORN.46late\"> </a></td><td>Late Morning</td><td>Event occurs during the late morning. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">NOON<a name=\"event-timing-NOON\"> </a></td><td>Noon</td><td>Event occurs around 12:00pm. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">AFT<a name=\"event-timing-AFT\"> </a></td><td>Afternoon</td><td>Event occurs during the afternoon. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">AFT.early<a name=\"event-timing-AFT.46early\"> </a></td><td>Early Afternoon</td><td>Event occurs during the early afternoon. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">AFT.late<a name=\"event-timing-AFT.46late\"> </a></td><td>Late Afternoon</td><td>Event occurs during the late afternoon. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">EVE<a name=\"event-timing-EVE\"> </a></td><td>Evening</td><td>Event occurs during the evening. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">EVE.early<a name=\"event-timing-EVE.46early\"> </a></td><td>Early Evening</td><td>Event occurs during the early evening. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">EVE.late<a name=\"event-timing-EVE.46late\"> </a></td><td>Late Evening</td><td>Event occurs during the late evening. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">NIGHT<a name=\"event-timing-NIGHT\"> </a></td><td>Night</td><td>Event occurs during the night. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">PHS<a name=\"event-timing-PHS\"> </a></td><td>After Sleep</td><td>Event occurs [offset] after subject goes to sleep. The exact time is unspecified and established by institution convention or patient interpretation.</td></tr><tr><td style=\"white-space:nowrap\">IMD<a name=\"event-timing-IMD\"> </a></td><td>Immediate</td><td>Event occurs a single time (with no repetitions) as soon as possible after the scheduled or actual start of the overall event.</td></tr></table></div>"
},
"extension" : [{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
"valueCode" : "fhir"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
"valueCode" : "normative"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version",
"valueCode" : "4.0.0"
},
{
"url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
"valueInteger" : 5
}],
"url" : "http://hl7.org/fhir/event-timing",
"identifier" : [{
"system" : "urn:ietf:rfc:3986",
"value" : "urn:oid:2.16.840.1.113883.4.642.1.76"
}],
"version" : "5.0.0",
"version" : "6.0.0-ballot3",
"name" : "EventTiming",
"title" : "EventTiming",
"status" : "active",
"experimental" : false,
"date" : "2023-03-26T15:21:02+11:00",
"publisher" : "HL7 (FHIR Project)",
"date" : "2025-11-20T23:56:49+00:00",
"publisher" : "HL7 International / FHIR Infrastructure",
"contact" : [{
"telecom" : [{
"system" : "url",
"value" : "http://hl7.org/fhir"
},
{
"system" : "email",
"value" : "fhir@lists.hl7.org"
}]
},
{
"telecom" : [{
"system" : "url",
"value" : "http://www.hl7.org/Special/committees/fiwg"
}]
}],
"description" : "Real-world event relating to the schedule.",
"jurisdiction" : [{
"coding" : [{
"system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
"code" : "001",
"display" : "World"
}]
}],
"caseSensitive" : true,
"content" : "complete",
"concept" : [{
"code" : "MORN",
"display" : "Morning",
"definition" : "Event occurs during the morning. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "MORN.early",
"display" : "Early Morning",
"definition" : "Event occurs during the early morning. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "MORN.late",
"display" : "Late Morning",
"definition" : "Event occurs during the late morning. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "NOON",
"display" : "Noon",
"definition" : "Event occurs around 12:00pm. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "AFT",
"display" : "Afternoon",
"definition" : "Event occurs during the afternoon. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "AFT.early",
"display" : "Early Afternoon",
"definition" : "Event occurs during the early afternoon. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "AFT.late",
"display" : "Late Afternoon",
"definition" : "Event occurs during the late afternoon. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "EVE",
"display" : "Evening",
"definition" : "Event occurs during the evening. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "EVE.early",
"display" : "Early Evening",
"definition" : "Event occurs during the early evening. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "EVE.late",
"display" : "Late Evening",
"definition" : "Event occurs during the late evening. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "NIGHT",
"display" : "Night",
"definition" : "Event occurs during the night. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "PHS",
"display" : "After Sleep",
"definition" : "Event occurs [offset] after subject goes to sleep. The exact time is unspecified and established by institution convention or patient interpretation."
},
{
"code" : "IMD",
"display" : "Immediate",
"definition" : "Event occurs a single time (with no repetitions) as soon as possible after the scheduled or actual start of the overall event."
}]
}
Usage note: every effort has been made to ensure that the examples are correct and useful, but they are not a normative part of the specification.
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FHIR
R5
hl7.fhir.core#5.0.0
R6
hl7.fhir.core#6.0.0-ballot3
generated
on
Sun,
Mar
26,
2023
15:22+1100.
Thu,
Nov
20,
2025
23:58+0000.
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