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2013 ICD-9-CM Diagnosis Codes
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Symptoms, Signs, And Ill-Defined Conditions
780-799
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Symptoms
780-789
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General symptoms
780-
2013 ICD-9-CM Diagnosis Code 780.55
Disruption of 24 hour sleep wake cycle, unspecified
ICD-9-CM
780.55
is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
780.55
Alternative Terminology
Disorder of sleep-wake cycle
Irregular sleep-wake pattern
Reversed sleep-wake cycle
Sleep-wake schedule disorder
Sleep-wake schedule disorder, advanced phase type
Sleep-wake schedule disorder, delayed phase type
Sleep-wake schedule disorder, disorganized type
Sleep-wake schedule disorder, frequently changing type
Convert
780.55
to ICD-10-CM
ICD-9-CM
780.55
converts approximately to:
2013 ICD-10-CM
G47.20
Circadian rhythm sleep disorder, unspecified type
ICD-9-CM Volume 2 Index entries containing back-references to
780.55
:
Disruption
phase-shift, of 24 hour sleep wake cycle, unspecified
780.55
nonorganic origin
307.45
sleep wake cycle (24 hour), unspecified
780.55
circadian rhythm
327.33
nonorganic origin
307.45
780.54
ICD9Data.com
780.56
2013 ICD-9-CM Diagnosis Code 780.55
phase-shift, of 24 hour sleep wake cycle, unspecified 
nonorganic origin 
