I am trying to bill a claim to a workers comp and they are telling me that instead of using the rev code 0126 for detox and rev code 0128 for rehab that I need to use 0024 and find the hcpcs/hipps code to go along with that, does anyone have any idea what that may be? They of course said they can’t tell me but that the CMG is a five digit code beginning with A, B, C, or D…. This is for inpatient substance abuse tx. the person was her 13 days for detox and 29 for rehab.