Personal Health Records
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Personal Health Records, published by HL7 International / Patient Empowerment. This guide is not an authorized publication; it is the continuous build for version 1.0.0-ballot2 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/personal-health-record-format-ig/ and changes regularly. See the Directory of published versions

CodeSystem: Sleep Analysis Codes

Official URL: http://hl7.org/fhir/uv/phr/CodeSystem/sleep-analysis-codes Version: 1.0.0-ballot2
Standards status: Trial-use Active as of 2025-12-27 Maturity Level: 1 Computable Name: SleepAnalysis

Codes for stages of sleep

This Code system is referenced in the definition of the following value sets:

This case-sensitive code system http://hl7.org/fhir/uv/phr/CodeSystem/sleep-analysis-codes defines the following codes:

CodeDisplayDefinition
inBed In bed The user is in bed.
asleepUnspecified Asleep unspecified The user is asleep, but the specific stage isn’t known.
awake Awake The user is awake.
asleepREM Asleep REM The user is in REM sleep.
asleepCore Asleep core The user is in light or intermediate sleep.
asleepDeep Asleep deep The user is in deep sleep.

Description of the above table(s).