G8458 – Clinician documented that patient is not an eligible candidate for genotype testing; patient not receiving antiviral treatment for hepatitis c during the measurement period (e.g. genotype test done prior to the reporting period, patient declines, patient not a candidate for antiviral treatment)
HCPCS Level II code · G codes: Procedures / Professional Services (Temporary)
HCPCS codeG8458
- Long description
- Clinician documented that patient is not an eligible candidate for genotype testing; patient not receiving antiviral treatment for hepatitis c during the measurement period (e.g. genotype test done prior to the reporting period, patient declines, patient not a candidate for antiviral treatment)
- Short description
- Pt inelig geno no antvir tx
- Pricing indicator
00Not separately priced by Part B (bundled, not covered or Part A only)- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
M5DSpecialist - other- Added
- January 1, 2008
- Last change
- January 1, 2017 – No change
- Termination date
- December 31, 2016
Frequently asked questions
What is HCPCS code G8458?
G8458 is a HCPCS Level II code for clinician documented that patient is not an eligible candidate for genotype testing; patient not receiving antiviral treatment for hepatitis c during the measurement period (e.g. genotype test done prior to the reporting period, patient declines, patient not a candidate for antiviral treatment). It was discontinued on December 31, 2016.
Does Medicare cover G8458?
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
- G8430 – Documentation of a medical reason(s) for not documenting, updating, or reviewing the patient's current medications list (e.g., patient is in an acute health crisis where time is of the essence and delay of treatment would jeopardize the patient's health status)
- G8431 – Screening for depression is documented as being positive and a follow-up plan is documented
- G8432 – Depression screening not documented, reason not given
- G8433 – Screening for depression not completed, documented patient or medical reason
- G8442 – Pain assessment not documented as being performed, documentation the patient is not eligible for a pain assessment using a standardized tool at the time of the encounter
- G8450 – Beta-blocker therapy prescribed
- G8451 – Beta-blocker therapy for lvef <=40% not prescribed for reasons documented by the clinician (e.g., low blood pressure, fluid overload, asthma, patients recently treated with an intravenous positive inotropic agent, allergy, intolerance, other medical reasons, patient declined, other patient reasons)
- G8452 – Beta-blocker therapy not prescribed
- G8460 – Clinician documented that patient is not an eligible candidate for quantitative rna testing at week 12; patient not receiving antiviral treatment for hepatitis c
- G8461 – Patient receiving antiviral treatment for hepatitis c during the measurement period
- G8464 – Clinician documented that prostate cancer patient is not an eligible candidate for adjuvant hormonal therapy; low or intermediate risk of recurrence or risk of recurrence not determined
- G8465 – High or very high risk of recurrence of prostate cancer
- G8473 – Angiotensin converting enzyme (ace) inhibitor or angiotensin receptor blocker (arb) therapy prescribed
- G8474 – Angiotensin converting enzyme (ace) inhibitor or angiotensin receptor blocker (arb) therapy not prescribed for reasons documented by the clinician (e.g., allergy, intolerance, pregnancy, renal failure due to ace inhibitor, diseases of the aortic or mitral valve, other medical reasons) or (e.g., patient declined, other patient reasons)
- G8475 – Angiotensin converting enzyme (ace) inhibitor or angiotensin receptor blocker (arb) therapy not prescribed, reason not given
- G8476 – Most recent blood pressure has a systolic measurement of < 140 mmhg and a diastolic measurement of < 90 mmhg
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.