IP consults for psychologist bedside

I am beginning to code for a Psychologist who is providing consults to patients bedside at our hospital which does not have a specified psych ward. He mainly provides therapy for terminal illnesses and mental/behavioral health issues that may arise during the IP stay. Should we code for IP consults 99251- 99255 or can I use the IP psychotherapy codes. The Psychologist documents beautifully the length of time he spends with these patients. I feel as a specialist he should get reimbursed for prolonged service add-on codes with the IP psychotherapy codes. He is providing a mental services not treating medical comorbidities. I have looked at past notes where he has documented over 120 min. of time. Also, does the POS matter when providing mental health services? Any advice is greatly appreciated. Links or any learning tools for coding for a psychologist is also helpful.

Thank you for your time!!
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Ethanzoe

IP consults for psychologist bedside