Summary & Overview
HCPCS G2162: Zoster Vaccine Status or Adverse Reaction
HCPCS Level II code G2162 documents patients who either did not receive the recommended herpes zoster vaccination (one dose of the live vaccine or two doses of the recombinant vaccine at least 28 days apart) on or after age 50, or who have a recorded adverse reaction to the zoster vaccine or its components. This administrative code is used in immunization status reporting and quality measurement. Nationally, accurate capture of zoster vaccination status influences preventive care metrics and population immunization monitoring for adults.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code’s clinical intent, typical service settings where the code is relevant, and an outline of items commonly reported alongside G2162 in quality measurement workflows. The publication covers benchmark-oriented content, policy implications for claim documentation, and clinical context around adult herpes zoster vaccination schedules and contraindications. Practical sections summarize where G2162 appears in reporting, common modifiers used with HCPCS Level II billing, and notes on data elements that are not available in the input.
Billing Code Overview
HCPCS Level II code G2162 indicates that a patient did not receive at least one dose of the herpes zoster live vaccine or two doses of the herpes zoster recombinant vaccine (administered at least 28 days apart) on or after the patient’s 50th birthday before or during the measurement period, or that the patient had a documented adverse reaction to a zoster vaccine or its components at any time during or before the measurement period.
Service Type: Vaccination status assessment / immunization reporting.
Typical Site of Service: Ambulatory care settings such as primary care clinics, specialty outpatient clinics, and other outpatient facilities where adult immunization status is assessed and documented.
Data not available in the input for associated taxonomies, ICD-10 diagnoses, related codes, and service line.
Clinical & Coding Specifications
Clinical Context
A 68-year-old patient presents for preventive care at a primary care clinic. The patient’s medical record shows no documentation of receiving the herpes zoster live vaccine (one dose) or the herpes zoster recombinant vaccine (two doses, at least 28 days apart) on or after their 50th birthday. During the encounter, the clinician reviews immunization history, screens for contraindications (including history of severe allergic reaction to a prior zoster vaccine or its components, immunocompromised status, and current acute illness), and documents vaccine refusal, lack of prior vaccination, or a contraindication. If the patient declines vaccination or is contraindicated, the practice records the reason and may bill the applicable HCPCS level II code G2162 to indicate the patient did not receive the zoster vaccine as specified for quality measurement or reporting purposes.
Typical clinical workflow:
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Patient arrives for routine visit and presents medication/allergy history and immunization card.
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Medical assistant reviews chart, confirms age (≥50 years), and asks zoster vaccination history.
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Clinician evaluates for contraindications (e.g., prior severe reaction to zoster vaccine or components, current acute illness, or immunocompromised state affecting live vaccine suitability).
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Clinician documents findings: prior vaccination dates if present, or documents absence of vaccination, refusal, or adverse reaction.
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If vaccine not given due to refusal or contraindication, staff codes the encounter for reporting using
G2162and may apply appropriate claim modifiers if necessary. -
Documentation includes counseling provided (if any), reason for non‑vaccination, and follow‑up plan.