G9843 – Ras (kras or nras) gene mutation

HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)

Active code Carrier judgment

HCPCS codeG9843
Long description
Ras (kras or nras) gene mutation
Short description
Kras or nras gene mutation
Pricing indicator
00 Not separately priced by Part B (bundled, not covered or Part A only)
Medicare coverage
C Carrier judgment – coverage decided by the Medicare contractor
BETOS category
Z2 Undefined codes
Added
January 1, 2017
Last change
January 1, 2018 – No change

Frequently asked questions

What is HCPCS code G9843?

G9843 is a HCPCS Level II code for ras (kras or nras) gene mutation.

Does Medicare cover G9843?

The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.

Nearby G codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.