CPT
90471 — Immunization administration, single vaccine
ACA-covered vaccines should be free, including the admin fee.
Physical therapy
97530 — Therapeutic activities, direct patient contact; each 15 minutes
This 15-minute code covers hands-on therapy activities that use functional tasks (like lifting, reaching, or simulated work activities) to improve your strength, coordination, and ability to perform real-world activit...
- Typical setting: PT clinic, hospital outpatient
- National avg charge (illustrative): $30–$80 per 15-minute unit (Medicare non-facility rate approximately $35 in 2026)
- Most-disputed reason: Billing 97530 for passive modalities (hot packs, ultrasound) that do not involve active patient participation — 97530 requires active patient engagement in therapeutic activities.
What it means
What 97530 actually means
This 15-minute code covers hands-on therapy activities that use functional tasks (like lifting, reaching, or simulated work activities) to improve your strength, coordination, and ability to perform real-world activities. It requires one-on-one contact between therapist and patient.
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 97530 for passive modalities (hot packs, ultrasound) that do not involve active patient participation — 97530 requires active patient engagement in therapeutic activities.
- Multiple units billed without time documentation — each unit must have at least 8 minutes of direct contact, and total treatment time must be recorded in the medical record.
- CQ/CO modifier missing when a PTA or OTA provided the service — assistant services are reimbursed at 85% of the standard rate, and the modifier is required for Medicare.
If you see 97530 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 97530 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 97530 on a bill.
97530 FAQ
Plain-English answers.
What does 97530 usually cost?
$30–$80 per 15-minute unit (Medicare non-facility rate approximately $35 in 2026). 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 97530?
Billing 97530 for passive modalities (hot packs, ultrasound) that do not involve active patient participation — 97530 requires active patient engagement in therapeutic activities.
What should I do if I see 97530 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 97530 before paying.
Don't pay 97530 blindly.
The free scan tells you in under 60 seconds whether this charge looks reasonable for your situation.