The description of the HCPCs do not state what the units are except H0015 which states:
Alcohol and/or drug services; intensive outpatient (treatment program that operates at least 3 hours/day and at least 3 days/week and is based on an individualized treatment plan), including assessment, counseling; crisis intervention, and activity therapies or education
I tried to research it and found the following:
H0010 & H0011 are 1 unit = 1 day
H0015 1 unit = 1/2 day
No info on units for H0012, H0013 or H0014
Hope that helps.
Michele