HCPCS code S9122: Home health aide or certified nurse assistant (CNA), per hour

No. S9122 is a temporary national code and is not recognized or reimbursed by Medicare. Medicare has its own set of codes (e.g., G0156) for home health aide services provided under a certified home health agency.

Check the payer's specific billing guidelines. Some payers allow billing for partial hours, often in 15-minute increments using a different code.

Yes, a physician's order is almost always required to establish medical necessity for home health services and to obtain authorization from the insurance provider.