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See a sample rate comparisonHCPCS A9558 Fee Schedule
Last Verified: September 2026
Healthcare providers use this code to document and receive reimbursement for visits that address moderate-level medical decision-making, often including multiple diagnoses or prescription management.
Xenon Xe-133 gas, diagnostic, per 10 millicuries
| Key Fact | Detail |
|---|---|
| Service Type | Administrative, Miscellaneous and Investigational Diagnostic and Therapeutic Radiopharmaceuticals |
| Complexity Level | Low |
| Medicaid Fee Schedule | View Medicaid rates for A9558 |
National average reimbursement for HCPCS A9558 by major payers:
$152.75
$280.49
$249.24
$189.47
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HCPCS A9558
5 of 25 sample ratesHigher to lower in this preview
Chu Chen
$609.30Published rateAlicia Encinas
Miguel A Arenas Md PC
$290.80Published rateJared Intaphan
Lowcountry Lung Critical Care PA
$263.77Published rateMichael Spandorfer
Lowcountry Lung Critical Care PA
$238.46Published ratePhoebe Worth Medical Center, Inc, Phoebe Worth Medical Center, Inc
Phoebe Worth Medical Center Inc
$72.95Published rate
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See a sample payer proposalHCPCS A9558 vs. Other Diagnostic and Therapeutic Radiopharmaceuticals Codes
The HCPCS A9558 code is part of the Administrative, Miscellaneous and Investigational services used for Diagnostic and Therapeutic Radiopharmaceuticals. It represents a moderate-complexity encounter and is one of several codes that vary based on time spent, level of medical decision-making, and documentation requirements.
The HCPCS A9558 code involves more provider time and moderate medical decision-making, unlike lower-level codes that require less time and simpler assessments. It typically includes multiple diagnoses, medication management, or test interpretation, leading to higher reimbursement and more detailed documentation requirements.
| Code | Complexity | Description |
|---|---|---|
| A9557-HCPCS | High | Technetium Tc-99m bicisate, diagnostic, per study dose, up to 25 millicuries |
| A9558-HCPCS | Low | Xenon Xe-133 gas, diagnostic, per 10 millicuries |
| A9559-HCPCS | Low | Cobalt Co-57 cyanocobalamin, oral, diagnostic, per study dose, up to 1 microcurie |
What is a fee schedule?
A fee schedule is a list of fixed prices that healthcare providers charge for specific services, including HCPCS A9558. These prices vary depending on payer type (Medicare, Medicaid, private insurance), geographic location, and provider contracts.
Understanding the A9558 fee schedule helps patients estimate costs and providers optimize billing for accurate reimbursements.
Factors that affect fee schedules
Medicare & Medicaid Rates
Government-set reimbursement amounts
Private Insurance Rates
Negotiated rates between providers and insurance companies
Geographic Location
Costs may be higher in urban areas.
Provider Type
Hospital providers may have different rates than private practice.
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