Anesthesiology Billing Services
Anesthesiology billing is entirely different from other specialties. Time-based coding, base unit values, physical status modifiers, and CRNA supervision rules create a billing model unlike anything else in medicine.
Why Anesthesiology Billing Requires Specialty Expertise
Anesthesia billing uses a formula: (Base Units + Time Units + Modifying Units) x Conversion Factor. Base units are assigned per procedure, time is calculated from anesthesia start to end, and physical status modifiers (P1-P6) add units. CRNA vs physician billing has separate rules for medical direction and supervision.
Common Anesthesiology CPT Codes
Our coders handle these anesthesiology codes daily. This is not an exhaustive list.
2026 Medicare Allowables for Anesthesiology CPT Codes by State
Medicare reimbursement for anesthesiologyprocedures is not a single national number. Each code's allowable is adjusted by your state's Geographic Practice Cost Index (GPCI) and processed under that state's Medicare Administrative Contractor (MAC), so the same anesthesiology CPT code pays a different amount in California than it does in Texas or Florida. The table below shows the 3 core anesthesiologycodes our coders bill priced at each state's 2026 locality. The non-facility figure is what an office-based practice collects. The facility figure applies when the service is performed in a hospital-based setting.
Commercial carriers in each state typically reimburse above these Medicare benchmarks and state Medicaid below them, but the Medicare allowable is the contracting anchor every payer negotiation starts from. Compare any individual code across all states with our Medicare fee calculator by state.
| Code | Anesthesiology Procedure | CA | TX | FL | NY | PA | IL | OH | GA | NC | MI |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 64483 | Lumbar transforaminal epidural injection | $300.66 | $261.75 | $270.90 | $292.66 | $261.77 | $263.59 | $247.74 | $257.00 | $249.59 | $255.15 |
| 62323 | Lumbar or sacral epidural injection | $310.98 | $269.90 | $279.29 | $302.18 | $269.86 | $271.55 | $255.10 | $264.82 | $257.18 | $262.80 |
| 99155 | Moderate sedation, first 15 minutes | $81.94 | $81.12 | $89.12 | $88.55 | $82.42 | $88.69 | $80.69 | $82.71 | $77.93 | $84.16 |
Full Anesthesiology fee detail by state
2026 Medicare allowables for anesthesiology CPT codes in California, processed under Noridian Healthcare Solutions (Jurisdiction E). See California medical billing.
| Code | Description | Non-Facility | Facility |
|---|---|---|---|
| 64483 | Lumbar transforaminal epidural injection | $300.66 | $105.03 |
| 62323 | Lumbar or sacral epidural injection | $310.98 | $93.22 |
| 99155 | Moderate sedation, first 15 minutes | $81.94 | $81.94 |
Source: 2026 Medicare Physician Fee Schedule, locality-adjusted by state MAC. Figures are for reference and contracting benchmarks, not a guarantee of payment.
Anesthesiology Billing Challenges We Solve
Common billing problems in anesthesiology and how our team handles them.
Time Documentation
Anesthesia time must be precisely documented from start to end. Missing minutes = lost revenue.
CRNA Supervision Rules
Medical direction (QK, QY) vs supervision (AD) vs personal performance affects billing and payment.
Physical Status Modifiers
P3-P6 add units and revenue but are frequently omitted.
Concurrent Procedures
When anesthesiologists direct multiple rooms, specific modifier rules apply.
Common Anesthesiology Denial Reasons
We prevent these before submission and appeal aggressively when they occur.
Revenue Opportunities Most Anesthesiology Practices Miss
Payer-Specific Anesthesiology Billing Tips
Anesthesiology Billing Best Practices
Practical tips from our coding team to maximize reimbursement and minimize denials.
Get Expert Anesthesiology Billing Support
Free billing assessment for your anesthesiology practice. See where revenue is leaking.
What We Handle for Anesthesiology Practices
Why Choose Go Medical Billing for Anesthesiology
Anesthesia billing is formula-based and completely different from other specialties. Our team captures every minute of time, assigns correct physical status modifiers, and handles CRNA direction rules.
We serve anesthesiology practices in all 50 states, starting at 2.49% of collections. Our credentialing team handles payer enrollment, and our A/R specialists recover aging claims.
Anesthesiology Billing by State
We handle anesthesiology billing in all 50 states. The 2026 Medicare allowables for anesthesiology CPT codes in every state are in the fee table above. Open any state below for its full payer environment, Medicaid rules, and Medicare MAC policies.
Frequently Asked Questions
Get Expert Anesthesiology Billing Support
Stop losing revenue to anesthesiology coding errors and preventable denials. Call 888-701-6090 for a free billing assessment.