G0123 HCPCS Level II code: Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, screening by…
G0123 is the HCPCS code for “Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, screening by cytotechnologist under physician supervision” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
G0123Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, screening by cytotechnologist under physician supervision
Short description: Screen cerv/vag thin layer
HCPCS · United States
Notes for G0123
As CMS prints them, with any note G0123 takes from the headings above it.
Note
- CMS processing note 0045: SEE INTERMEDIARY MANUAL 3628.1A FOR PAYMENT INSTRUCTIONS. (P3000,P3001 G0123, G0124, G0141, G0143, G0144, G0145, G0147, G0148). PROGRAM MEMORANDUM AB-98-71.60.
Medicare details
The indicators CMS publishes with G0123 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Special coverage instructions apply
- Medicare pricing
- Clinical lab fee schedule – Price subject to national limitation amount
- Type of service
- Diagnostic laboratory
- BETOS category
- Lab tests - other (Non-Medicare fee schedule)
- Lab certification
- Cytology
- Added
- Apr 1, 1998
Where G0123 sits
- 1G codesProcedures and professional services
- 2Active code G0123Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, screening by cytotechnologist under physician supervision
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code G0123 mean?
G0123 is the HCPCS code for “Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, screening by cytotechnologist under physician supervision” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover G0123?
CMS lists G0123’s Medicare coverage as “Special coverage instructions apply” and its pricing as “Clinical lab fee schedule – Price subject to national limitation amount”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside G0123
All G codesG0109Diabetes outpatient self-management training services, group session (2 or more), per 30 minutesG0117Glaucoma screening for high risk patients furnished by an optometrist or ophthalmologistG0118Glaucoma screening for high risk patient furnished under the direct supervision of an optometrist or ophthalmologistG0120Colorectal cancer screening; alternative to g0105, screening colonoscopy, barium enema.G0121Colorectal cancer screening; colonoscopy on individual not meeting criteria for high riskG0122Colorectal cancer screening; barium enemaG0124Screening cytopathology, cervical or vaginal (any reporting system), collected in preservative fluid, automated thin layer preparation, requiring interpretation by physicianG0127Trimming of dystrophic nails, any numberG0128Direct (face-to-face with patient) skilled nursing services of a registered nurse provided in a comprehensive outpatient rehabilitation facility, each 10 minutes beyond the first…G0129Occupational therapy services requiring the skills of a qualified occupational therapist, furnished as a component of a partial hospitalization or intensive outpatient treatment…G0130Single energy x-ray absorptiometry (sexa) bone density study, one or more sites; appendicular skeleton (peripheral) (e.g., radius, wrist, heel)G0136Administration of a standardized, evidence-based assessment of physical activity and nutrition, 5-15 minutes, not more often than every 6 months