CPT
90471 — Immunization administration, single vaccine
ACA-covered vaccines should be free, including the admin fee.
Physical therapy
97535 — Self-care or home management training; direct patient contact; each 15 minutes
This 15-minute code covers a therapist directly teaching you or a caregiver how to perform daily activities (dressing, bathing, cooking, home safety) more independently or safely.
- Typical setting: OT clinic, hospital outpatient
- National avg charge (illustrative): $25–$70 per 15-minute unit
- Most-disputed reason: Billing 97535 for group instruction rather than individual one-on-one teaching — this code requires direct one-on-one patient contact.
What it means
What 97535 actually means
This 15-minute code covers a therapist directly teaching you or a caregiver how to perform daily activities (dressing, bathing, cooking, home safety) more independently or safely. It is commonly used in occupational therapy to prepare patients for discharge or independent living.
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 97535 for group instruction rather than individual one-on-one teaching — this code requires direct one-on-one patient contact.
- Confusing 97535 with caregiver training G-codes (G0541–G0543) when instruction is provided to a caregiver without the patient present — different codes apply depending on whether the patient is present.
- Billing 97535 and 97530 for the same 15-minute block of time — each timed unit must represent separate, distinct minutes of service.
If you see 97535 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 97535 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 97535 on a bill.
97535 FAQ
Plain-English answers.
What does 97535 usually cost?
$25–$70 per 15-minute unit. 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 97535?
Billing 97535 for group instruction rather than individual one-on-one teaching — this code requires direct one-on-one patient contact.
What should I do if I see 97535 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 97535 before paying.
Don't pay 97535 blindly.
The free scan tells you in under 60 seconds whether this charge looks reasonable for your situation.