HCPCS Level II · Procedures and professional services (temporary)
G0123Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, screening by cytotechnologist under physician supervision
✓ Active
Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About G0123
G0123 is an HCPCS Level II code in the G series (procedures and professional services (temporary)), describing screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, screening by cytotechnologist under physician supervision.
It was added to HCPCS effective 04/01/1998.
Its Medicare coverage code is "D", meaning special Medicare coverage instructions apply.
Details
- Short description
- Screen cerv/vag thin layer
- Date added
- 04/01/1998
- Action effective
- 04/01/1998
- BETOS
- T1H
Related G01xx codes
- G0101Cervical or vaginal cancer screening; pelvic and clinical breast examination
- G0102Prostate cancer screening; digital rectal examination
- G0103Prostate cancer screening; prostate specific antigen test (psa)
- G0104Colorectal cancer screening; flexible sigmoidoscopy
- G0105Colorectal cancer screening; colonoscopy on individual at high risk
- G0108Diabetes outpatient self-management training services, individual, per 30 minutes
- G0109Diabetes outpatient self-management training services, group session (2 or more), per 30 minutes
- G0117Glaucoma screening for high risk patients furnished by an optometrist or ophthalmologist
- G0118Glaucoma screening for high risk patient furnished under the direct supervision of an optometrist or ophthalmologist
- G0121Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk
- G0124Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, requiring interpretation by physician
- G0127Trimming of dystrophic nails, any number
Common questions about G0123
Is HCPCS G0123 still valid?
- Yes. G0123 is active in the CMS October 2026 HCPCS file.
Does Medicare cover G0123?
- Its coverage code is "D": special Medicare coverage instructions apply. Check the local coverage determination for your region.