From your location, I am guessing IEHP Medi-Cal means Inland Empire Health Plan Medi-Cal. If I'm wrong, let me know and I'll hit more research.
They do offer a learning portal, accessible with free registration:
https://learn.medi-cal.ca.gov/
They also have Regional Representatives to assist with billing needs or other training: 1-800-541-5555, tell them you need a Regional Representative to contact you.
There is also a Small Provider Billing Unit, for providers who bill less than 100 claim lines per month. Call 916-636-1275 or 800-541-5555, and ask about enrolling in the SPBU Billing Assistance and Training Program.
This information is for all Medi-Cal products:
Codes and Rates Physical therapy services are reimbursed as listed below: (click for link)
HCPCS Code ... Description... Maximum Allowance
X3900 Single modality to one area – initial 30 minutes $ 17.04
X3902 Single modality to one area – each additional 15 minutes 3.63
X3904 Single procedure to one area – initial 30 minutes 21.19
X3906 Single procedure to one area – each additional 15 minutes 6.86
X3908 Treatment including a combination of any modalities 21.19
and procedures (one or more areas) – initial 30 minutes
X3910 Treatment including a combination of any modalities 6.86
and procedures (one or more areas) – each additional 15 minutes
X3912 Hubbard Tank – initial 30 minutes 34.84
X3914 Hubbard Tank – each additional 15 minutes 6.86
X3916 Hubbard Tank or pool therapy with $ 41.69
therapeutic exercise – initial 30 minutes
X3918 Hubbard Tank or pool therapy with therapeutic exercise – 6.86
each additional 15 minutes
X3920 Any of the tests and measurements – initial 30 34.84
minutes, plus report
X3922 Any of the tests and measurements – each additional 17.04
15 minutes, plus report
X3924 Physical Therapy Preliminary Evaluation rehabilitation 34.84
center, SNF, ICF
X3926 Case conference and report – initial 30 minutes 21.19
X3928 Case consultation and report 21.19
X3930 Case conference and report – each additional 15 minutes 6.86
X3932 Home or long term care facility visit – add 6.57
X3934 Mileage, per mile one-way beyond 10-mile radius 1.77
of point of origin (office or home)
X3936 Unlisted services By Report