CPT
90471 — Immunization administration, single vaccine
ACA-covered vaccines should be free, including the admin fee.
Neurology
95911 — Nerve conduction studies; 9-10 studies
This test measures electrical signal speed through 9 to 10 peripheral nerves to diagnose nerve damage or compression.
- Typical setting: Neurologist's office, hospital outpatient
- National avg charge (illustrative): $300–$900 (higher number of studies than 95910; often billed alongside EMG codes)
- Most-disputed reason: Billing 95911 when the documented nerve report only identifies 7-8 studies — the count of individual nerve/muscle combinations in the report must match the billed code.
What it means
What 95911 actually means
This test measures electrical signal speed through 9 to 10 peripheral nerves to diagnose nerve damage or compression. The higher study count indicates a more extensive evaluation — commonly performed when symptoms are bilateral or involve multiple limbs.
Common errors with this code
What goes wrong on real bills.
Most bills that look correct still contain at least one of these issues. Up to 49% of medical bills contain errors (CFPB).
- Billing 95911 when the documented nerve report only identifies 7-8 studies — the count of individual nerve/muscle combinations in the report must match the billed code.
- Bilateral extremity NCS billed with a -76 modifier (repeat procedure same physician) improperly — bilateral testing is included in the count-based NCS codes and does not require a repeat modifier.
- NCS and EMG billed together where the combined charge significantly exceeds regional norms without clear documentation of why extensive bilateral testing was medically necessary.
If you see 95911 on your bill
Three steps before paying.
1. Get the itemized bill. If your statement only shows a summary, request the CPT-level itemized bill before paying. Generate the request language →
2. Cross-check against the EOB. Compare what your insurer's Explanation of Benefits says you owe versus what the hospital is asking. They disagree more often than people think. Read the bill-vs-EOB guide →
3. Run a free Bill Scan. Upload the bill (and EOB if you have it) and BillBusted will flag the most likely issues with this specific code in your specific state. Run free scan →
Related codes
Other codes in this category.
People who land on 95911 often also see these adjacent codes on the same bill.
CPT
90472 — Immunization admin; each additional vaccine
Vaccine — admin (90471) is separate from the vaccine product code.
CPT
90651 — Human papillomavirus vaccine types 6, 11, 16, 18, 31, 33, 45, 52, 58, nonavalent , IM
Vaccine — admin (90471) is separate from the vaccine product code.
CPT
90670 — Pneumococcal conjugate vaccine, 13 valent , IM
Vaccine — admin (90471) is separate from the vaccine product code.
CPT
90671 — Pneumococcal conjugate vaccine, 15 valent , IM
Vaccine — admin (90471) is separate from the vaccine product code.
CPT
90677 — Pneumococcal conjugate vaccine, 20 valent , IM
Vaccine — admin (90471) is separate from the vaccine product code.
Related BillBusted guides
Plain-English reads if you see 95911 on a bill.
95911 FAQ
Plain-English answers.
What does 95911 usually cost?
$300–$900 (higher number of studies than 95910; often billed alongside EMG codes). Costs vary by region, payer contract, and whether the service was performed in a hospital outpatient department (which adds a facility fee) versus a free-standing clinic.
What's the most common billing error on 95911?
Billing 95911 when the documented nerve report only identifies 7-8 studies — the count of individual nerve/muscle combinations in the report must match the billed code.
What should I do if I see 95911 on my bill?
Request the itemized bill and the matching EOB from your insurer. Compare the units/quantity billed against what you actually received. Run a free BillBusted scan to flag the most likely errors specific to 95911 before paying.
Don't pay 95911 blindly.
The free scan tells you in under 60 seconds whether this charge looks reasonable for your situation.