This is information from the 2024 Physician Fee Schedule Final Rule

https://public-inspection.federalregister.gov/2023-24184.pdf

CMS developed four HCPCS codes for Principal Illness Navigation. This service is intended to help patients with serious conditions navigate their health care treatment.

• PIN services are incident-to services so may only be performed in a non-facility setting
• Informed consent is required-the patient must agree to receive these services. Consent may be written or verbal, as long as it is documented in the record
• An initiating visit is required (see below)
• HCPCS codes: G0023, G0024, G0140, G0146
• The navigator may be someone who has had the disease or condition being treated

2026 Update: PIN services may be personally performed by a Marriage and Family Therapist or Mental Health Counselor. When personally performed by one of those professionals, report the service under their provider number.