As of October 2015, ICD-9 codes are no longer used for medical coding. Instead, use this equivalent ICD-10-CM code, which is an approximate match to ICD-9 code V65.49:
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
V Codes (in the DSM-5 and ICD-9) and Z Codes (in the ICD-10), also known as Other Conditions That May Be a Focus of Clinical Attention, addresses issues that are a focus of clinical attention or affect the diagnosis, course, prognosis, or treatment of a patient's mental disorder. However, these codes are not mental disorders.
The ICD-10 online manual has a much more comprehensive list of all the V codes that can be used. The list below contains the commonly used codes in behavioural and mental health.