Circadian rhythm sleep disorder, free-running type
Short description: CIRCADIAN RHYM-FREE RUN.
ICD-9-CM 327.34 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 327.34 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
You are viewing the 2007 version of ICD-9-CM 327.34.