| Level/ Type | Code | Display Name | Code System |
|---|
| 0‑L | AC | before meal (from lat. ante cibus) | TimingEvent |
| 0‑L | ACD | before lunch (from lat. ante cibus diurnus) | TimingEvent |
| 0‑L | ACM | before breakfast (from lat. ante cibus matutinus) | TimingEvent |
| 0‑L | ACV | before dinner (from lat. ante cibus vespertinus) | TimingEvent |
| 0‑L | HS | Prior to beginning a regular period of extended sleep (this would exclude naps). Note that this might occur at different times of day depending on a person's regular sleep schedule. | TimingEvent |
| 0‑L | IC | between meals (from lat. inter cibus) | TimingEvent |
| 0‑L | ICD | between lunch and dinner | TimingEvent |
| 0‑L | ICM | between breakfast and lunch | TimingEvent |
| 0‑L | ICV | between dinner and the hour of sleep | TimingEvent |
| 0‑L | PC | after meal (from lat. post cibus) | TimingEvent |
| 0‑L | PCD | after lunch (from lat. post cibus diurnus) | TimingEvent |
| 0‑L | PCM | after breakfast (from lat. post cibus matutinus) | TimingEvent |
| 0‑L | PCV | after dinner (from lat. post cibus vespertinus) | TimingEvent |
| 0‑L | MORN | Morning | FHIR EventTiming |
| 0‑L | MORN.early | Early Morning | FHIR EventTiming |
| 0‑L | MORN.late | Late Morning | FHIR EventTiming |
| 0‑L | NOON | Noon | FHIR EventTiming |
| 0‑L | AFT | Afternoon | FHIR EventTiming |
| 0‑L | AFT.early | Early Afternoon | FHIR EventTiming |
| 0‑L | AFT.late | Late Afternoon | FHIR EventTiming |
| 0‑L | EVE | Evening | FHIR EventTiming |
| 0‑L | EVE.early | Early Evening | FHIR EventTiming |
| 0‑L | EVE.late | Late Evening | FHIR EventTiming |
| 0‑L | NIGHT | Night | FHIR EventTiming |
| 0‑L | PHS | After Sleep | FHIR EventTiming |
|
Final