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327.33 - Circadian Rhythm Sleep Disorder, Irregular Sleep-wake Type


The ICD 9 Code for Circadian rhythm sleep disorder, irregular sleep-wake type is listed as 327.33.
Additional information concerning this code and description can be found below including ICD 10 crosswalks / GEMS, and chapter information where available.
ICD 9 CM Field Value
Diagnosis Code: 327.33
Long Description: Circadian rhythm sleep disorder, irregular sleep-wake type
Short Description: Circadian rhym-irreg slp
Chapter: Diseases Of The Nervous System And Sense Organs
Block: Inflammatory Diseases Of The Central Nervous System (320-327)
ICD-10-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD-10-CM Code: G47.23 - Circadian rhythm sleep disorder, irregular sleep wake type
ICD-9-CM Siblings (same level / similar specificity) of 327.33:
327.30 - Circadian rhythm sleep disorder, unspecified
327.31 - Circadian rhythm sleep disorder, delayed sleep phase type
327.32 - Circadian rhythm sleep disorder, advanced sleep phase type
327.34 - Circadian rhythm sleep disorder, free-running type
327.35 - Circadian rhythm sleep disorder, jet lag type
327.36 - Circadian rhythm sleep disorder, shift work type
327.37 - Circadian rhythm sleep disorder in conditions classified elsewhere
327.39 - Other circadian rhythm sleep disorder