G1000

G1000 — Clinical decision support mechanism applied pathways, as defined by the medicare appropriate use criteria program

HCPCSTerminatedBETOS Z2

G1000 is a HCPCS Level II code for clinical decision support mechanism applied pathways, as defined by the medicare appropriate use criteria program. It belongs to the Procedures and Professional Services (Temporary) section. It was terminated on March 31, 2020 and is not valid on new claims.

This code has been terminated

CMS terminated G1000 on March 31, 2020. It stays in the file as history — a claim you are auditing from before that date may legitimately carry it — but it must not appear on a new claim. The adjacent codes below are the usual place to look for its replacement.

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.

The CMS record for G1000

Long descriptor: Clinical decision support mechanism applied pathways, as defined by the medicare appropriate use criteria program
Short descriptor: Cdsm applied pathways
Added: January 1, 2020
Terminated: March 31, 2020
BETOS: Z2
Pricing indicator: 00 — Not priced by Part B

Codes adjacent to G1000

HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G1000 is not quite right, the correct code is very often within a few positions of it.

G0915Improvement in visual function not achieved within 90 days following cataract surgery
G0916Satisfaction with care achieved within 90 days following cataract surgery
G0917Patient care survey was not completed by patient
G0918Satisfaction with care not achieved within 90 days following cataract surgery
G0919Influenza immunization ordered or recommended (to be given at alternate location or alternate provider); vaccine not available at time of visitterminated
G0920Type, anatomic location, and activity all documentedterminated
G0921Documentation of patient reason(s) for not being able to assess (e.g., patient refuses endoscopic and/or radiologic assessment)terminated
G0922No documentation of disease type, anatomic location, and activity, reason not giventerminated
G1001Clinical decision support mechanism evicore, as defined by the medicare appropriate use criteria programterminated
G1002Clinical decision support mechanism medcurrent, as defined by the medicare appropriate use criteria programterminated
G1003Clinical decision support mechanism medicalis, as defined by the medicare appropriate use criteria programterminated
G1004Clinical decision support mechanism national decision support company, as defined by the medicare appropriate use criteria programterminated
G1005Clinical decision support mechanism national imaging associates, as defined by the medicare appropriate use criteria programterminated
G1006Clinical decision support mechanism test appropriate, as defined by the medicare appropriate use criteria programterminated
G1007Clinical decision support mechanism aim specialty health, as defined by the medicare appropriate use criteria programterminated
G1008Clinical decision support mechanism cranberry peak, as defined by the medicare appropriate use criteria programterminated

Questions about G1000

What is HCPCS code G1000?

G1000 is a HCPCS Level II code for clinical decision support mechanism applied pathways, as defined by the medicare appropriate use criteria program. It sits in the Procedures and Professional Services (Temporary) section.

Does Medicare cover G1000?

The CMS HCPCS file marks G1000 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.

Is G1000 still valid?

No. G1000 was terminated on March 31, 2020 and should not be used on new claims.