X2 is a valid 2023 HCPCS Modifier that could be used to indicate Continuous/focused services: for reporting services by clinicians whose expertise is needed for the ongoing management of a chronic disease or a condition that needs to be managed and followed with no planned endpoint to the relationship; reporting clinician service examples include but are not limited to: a rheumatologist taking care of the patient's rheumatoid arthritis longitudinally but not providing general primary care services.
X2 Modifier has been in effect since Jan 01, 2018.
Short description for X2 HCPCS Modifier code:
Continuous/focused services