ICD-9-CM 783.7 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 783.7 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).
Progressive functional deterioration of a physical and cognitive nature. The individual's ability to live with multisystem diseases, cope with ensuing problems, and manage his/her care are remarkably diminished
ICD-9-CM Coding Information
783.7 is only applicable to adult patients aged 15 - 124 years inclusive.