G9843 Kras or nras gene mutation
Also known as: KRAS mutation, NRAS mutation, RAS mutation positive
Healthcare quality measure documenting KRAS or NRAS gene mutation present in patient's tumor.
In Plain Language
growth gene mutation found; tumor mutation test positive
Clinical Context
Quality measure identifying patients with KRAS or NRAS mutations in colorectal cancer, which are predictive of resistance to anti-EGFR monoclonal antibody therapy.
RVU Information
CPT G9843 does not have a physician work RVU assigned by CMS. Reimbursement for this code is determined by payer-specific fee schedules.
Billing & Documentation
G-codes are CMS-specific HCPCS codes for services not covered by standard CPT. Documentation requirements follow the same standards as the equivalent CPT service. Check Medicare LCD/NCD policies for coverage criteria.
How This Code Compares
This code has a work RVU of 0.00, meaning it does not have a physician work component assigned by CMS. In the G Codes category, 85% of codes share this characteristic.
Specialties
Frequently Asked Questions
What is CPT code G9843?
CPT G9843 (Kras or nras gene mutation) is a G Codes code. Healthcare quality measure documenting KRAS or NRAS gene mutation present in patient's tumor.
Who uses CPT code G9843?
CPT G9843 is used by Oncology, Pathology, Genetics. Quality measure identifying patients with KRAS or NRAS mutations in colorectal cancer, which are predictive of resistance to anti-EGFR monoclonal antibody therapy.
When is CPT G9843 used?
Quality measure identifying patients with KRAS or NRAS mutations in colorectal cancer, which are predictive of resistance to anti-EGFR monoclonal antibody therapy.
Track This Code in RVU Edge
Log procedures, calculate wRVUs, and benchmark against national data — all in one app.
CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.