This value set includes codes based on the following rules:

• Include these codes as defined in http://snomed.info/sct

  Code	Display
  271782001	Drowsy

• Include these codes as defined in urn:iso:std:iso:11073:10101

  Code	Display
  2:24272	External interference Artifactual activity
  2:24192	Periodic movements of sleep with arousals
  2:24072	Fast irregular eye movements
  2:23816	Sharp appearing or epileptiform activity
  2:23744	Sleep spindle
  2:23624	Background activity delta
  2:23984	Periodic triphasic waves
  2:23864	Phantom spike and wave activity
  2:23704	Sleep Stage II
  2:23944	Rhythmic sharp waves
  2:23824	Sharp transient
  2:24232	Pulse artifactual activity
  2:24152	Myogenic hemifacial spasms
  2:24032	Periodic bursts with suppressions
  2:23784	Sleep sawtooth wave
  2:23664	Sleep stage unstageable
  2:23584	Background activity gamma
  2:24112	Eye-related activity electroretinogram
  2:24080	Rapid eye movements
  2:24040	Eye-related activity
  2:24160	Extraocular muscle activity
  2:23904	Epileptic or potentially epileptogenic spike
  2:23832	Wicket
  2:24008	Quasiperiodic cerebral sharp waves
  2:23712	Sleep Stage III
  2:23632	Background activity bisynchronous delta
  2:24248	Respiratory artifactual activity
  2:23952	Burst suppression
  2:24128	Myogenic palatal myoclonus
  2:24208	Electrode instrumental artifactual activity
  2:23912	Multiple spike
  2:24000	Periodic cerebral complexes
  2:24088	Eye-related photodriving activity
  2:23792	Sleep stage shift
  2:24240	ECG artifactual activity
  2:23592	Background activity alpha
  2:24120	Myogenic noncerebral activity
  2:23872	14 and 6 Hz positive bursts
  2:24048	Eye blinks
  2:23752	Sleep V wave
  2:23672	Sleep stage wake
  2:24200	Artifactual activity
  2:23992	Periodic epileptiform discharges
  2:24168	Myogenic tremor activity
  2:24096	Eye-related photomyogenic activity
  2:23568	Background activity beta
  2:23920	Spike and wave complex
  2:23800	Sleep arousal
  2:23888	Epileptic or potentially epileptogenic activity
  2:23720	Sleep stage IV
  2:23600	Background Mu activity
  2:23688	Sleep stage REM with sleep spindle
  2:24216	Movement artifactual activity
  2:23968	Periodic and quasiperiodic cerebral activity
  2:23848	Zeta wave
  2:23768	Sleep K complex
  2:23648	Background activity slow fused transients
  2:23560	Background activity
  2:24176	Myoclonic activity
  2:23880	Lambda wave
  2:24056	Nystagmoid eye movements
  2:23680	Sleep stage REM
  2:23960	Multiple independent spikes and asynchronous slow waves
  2:24136	Myogenic noncerebral myokymia
  2:23840	Small sharp spike
  2:24016	Periodic sharp waves
  2:23760	Sleep F wave
  2:23640	Background activity arrhythmic delta
  2:24256	Glossokinetic artifactual activity
  2:24184	Periodic movements of sleep
  2:23928	Atypical spike and wave complex
  2:23808	Sleep awakening
  2:23728	Alphadelta Sleep
  2:23608	Background activity theta
  2:23656	Sleep stage unspecified
  2:23976	Quasiperiodic triphasic waves
  2:23896	Epileptic or potentially epileptogenic sharp wave
  2:23776	Sleep post occipital sharp transient
  2:23616	Background activity bisynchronous theta
  2:23936	Sharp and slow wave complex
  2:23856	Triphasic wave
  2:23736	Sleep activity and event
  2:24264	Swallowing and chewing artifactual activity
  2:24144	Myogenic noncerebral facial synkinesis
  2:24064	Slow eye movements
  2:23696	Sleep Stage I
  2:24224	Sweat of galvanic artifactual activity
  2:23576	Background activity sigma
  2:24104	Eye-related photoparadoxysmal activity
  2:24024	Periodic suppressions