CPT
90471 — Immunization administration, single vaccine
ACA-covered vaccines should be free, including the admin fee.
Cardiology
93225 — External ECG recorder with continuous recording; up to 48 hours, recording
This code covers attaching and recording a Holter monitor (a wearable heart rhythm device) for up to 48 continuous hours — the technical recording portion only.
- Typical setting: Doctor's office, hospital outpatient
- National avg charge (illustrative): $50–$150 (recording only; typically billed by facility or technical provider)
- Most-disputed reason: Billing all three Holter codes (93225, 93226, 93227) when only the recording component was performed by one provider — each component should match what that specific entity actually did.
What it means
What 93225 actually means
This code covers attaching and recording a Holter monitor (a wearable heart rhythm device) for up to 48 continuous hours — the technical recording portion only. The monitor captures your heart's electrical activity while you go about daily life.
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 all three Holter codes (93225, 93226, 93227) when only the recording component was performed by one provider — each component should match what that specific entity actually did.
- Confusing 93225 (up to 48 hours, recording) with codes for longer-duration cardiac monitors (e.g., 30-day event monitors) — verify the monitor type on your bill matches the device you were given.
- Billing 93225 for a device that transmitted data wirelessly in real time; those remote monitoring services use different codes (93228/93229).
If you see 93225 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 93225 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 93225 on a bill.
93225 FAQ
Plain-English answers.
What does 93225 usually cost?
$50–$150 (recording only; typically billed by facility or technical provider). 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 93225?
Billing all three Holter codes (93225, 93226, 93227) when only the recording component was performed by one provider — each component should match what that specific entity actually did.
What should I do if I see 93225 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 93225 before paying.
Don't pay 93225 blindly.
The free scan tells you in under 60 seconds whether this charge looks reasonable for your situation.