G4023 — Pathology mips specialty set
G4023 is a HCPCS Level II code for pathology mips specialty set. It belongs to the Procedures and Professional Services (Temporary) section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusM
Measurement code. Used for reporting purposes only; never paid.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for G4023
- Long descriptor
- Pathology mips specialty set
- Short descriptor
- Pathology ss
- Added
- January 1, 2022
- BETOS
- Z2
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to G4023
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G4023 is not quite right, the correct code is very often within a few positions of it.
- G4015Neurology mips specialty set
- G4016Neurosurgical mips specialty set
- G4017Nutrition/dietician mips specialty set
- G4018Obstetrics/gynecology mips specialty set
- G4019Oncology/hematology mips specialty set
- G4020Ophthalmology/optometry mips specialty set
- G4021Orthopedic surgery mips specialty set
- G4022Otolaryngology mips specialty set
- G4024Pediatrics mips specialty set
- G4025Physical medicine mips specialty set
- G4026Physical therapy/occupational therapy mips specialty set
- G4027Plastic surgery mips specialty set
- G4028Podiatry mips specialty set
- G4029Preventive medicine mips specialty set
- G4030Pulmonology mips specialty set
- G4031Radiation oncology mips specialty set
Questions about G4023
What is HCPCS code G4023?
G4023 is a HCPCS Level II code for pathology mips specialty set. It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G4023?
The CMS HCPCS file marks G4023 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
How is G4023 paid under the physician fee schedule?
G4023 carries PFS status code M. Measurement code. Used for reporting purposes only; never paid.