G4021 — Orthopedic surgery mips specialty set
G4021 is a HCPCS Level II code for orthopedic surgery 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 G4021
- Long descriptor
- Orthopedic surgery mips specialty set
- Short descriptor
- Orthopedic surgery 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 G4021
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G4021 is not quite right, the correct code is very often within a few positions of it.
- G4013Mental/behavioral and psychiatry mips specialty set
- G4014Nephrology mips specialty set
- 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
- G4022Otolaryngology mips specialty set
- G4023Pathology 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
Questions about G4021
What is HCPCS code G4021?
G4021 is a HCPCS Level II code for orthopedic surgery mips specialty set. It sits in the Procedures and Professional Services (Temporary) section.
Does Medicare cover G4021?
The CMS HCPCS file marks G4021 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 G4021 paid under the physician fee schedule?
G4021 carries PFS status code M. Measurement code. Used for reporting purposes only; never paid.