HCPCS modifier codes starting with S

21 codes. Every code ever valid for billing is listed, including those now retired.

Code	Description	Status
SA	Nurse practitioner rendering service in collaboration with a physician	Valid
SB	Nurse midwife	Valid
SC	Medically necessary service or supply	Valid
SD	Services provided by registered nurse with specialized, highly technical home infusion training	Valid
SE	State and/or federally-funded programs/services	Valid
SF	Second opinion ordered by a professional review organization (pro) per section 9401, p.l. 99-272 (100% reimbursement - no medicare deductible or coinsurance)	Valid
SG	Ambulatory surgical center (asc) facility service	Valid
SH	Second concurrently administered infusion therapy	Valid
SJ	Third or more concurrently administered infusion therapy	Valid
SK	Member of high risk population (use only with codes for immunization)	Valid
SL	State supplied vaccine	Valid
SM	Second surgical opinion	Valid
SN	Third surgical opinion	Valid
SQ	Item ordered by home health	Valid
SS	Home infusion services provided in the infusion suite of the iv therapy provider	Valid
ST	Related to trauma or injury	Valid
SU	Procedure performed in physician's office (to denote use of facility and equipment)	Valid
SV	Pharmaceuticals delivered to patient's home but not utilized	Valid
SW	Services provided by a certified diabetic educator	Valid
SY	Persons who are in close contact with member of high-risk population (use only with codes for immunization)	Valid
SZ	Habilitative services through FY2026	Terminated