So since multiple people are having this issue, it's good to review the actual federal guidelines for this. From CMS page on psychiatric and psychological services L34616:
"Psychiatric Diagnostic Evaluation
A psychiatric diagnostic evaluation is an integrated assessment that includes history, mental status and recommendations. It may include communicating with the family and ordering further diagnostic studies. A psychiatric diagnostic evaluation with medical services includes a psychiatric diagnostic evaluation and a medical assessment. It may require a physical exam, communication with the family, prescription medications and ordering laboratory or other diagnostic studies. A psychiatric diagnostic evaluation with medical services also includes physical examination elements.
Patients may need an evaluation and diagnosis by a multidisciplinary team prior to implantation of peripheral and central nervous system stimulators for chronic intractable pain. (See NCD 160.7 Electrical Nerve Stimulators.)
The following information pertains to both psychiatric diagnostic evaluation; and psychiatric diagnostic evaluation with medical services:
- Cannot be reported with an E/M code on the same day by the same provider
- Cannot be reported with a psychotherapy service code on the same day
- May only be reported once per day
- May be reported more than once for a patient when separate evaluations are conducted with the patient and other informants (i.e., family members, guardians, significant others) on different days. This service is considered medically necessary once every 6 months per episode of illness. *However, if reported more than once per episode of illness, documentation will be required for the establishment of medical necessity.
- In certain circumstances family members, guardians, or significant others may be seen in lieu of the patient."
Note section D. General guideline is that it can only be used once every 6 months per episode of illness, so the 1 year mark is incorrect. However, the asterisk denotes that you can bill this more frequently if required for medical necessity, ie separate ER visits or new inpatient psych admissions requiring medical conditions to be ruled out.
This is fresh in my mind as I'm currently dealing with coders who don't seem to understand psychiatric billing.