CPT Code 90715 — What It Means on Your Medical Bill

CPT code · Vaccine · Typically billed in: Office or pharmacy

What CPT code 90715 means: The Tdap vaccine (tetanus, diphtheria, whooping cough).

Seeing CPT code 90715 on your medical bill?
This code is only one part of the picture — your bill, EOB, insurance adjustments, units, and other charges may affect what you actually owe. MD Bill Check reads the codes on your document, checks the bill in context, and flags items that may be worth reviewing.

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How many units of CPT code 90715 should appear on one day

Units normally expected per day: Medicare normally expects at most 1 unit of CPT code 90715 per patient per day. This is an absolute policy limit — more than 1 unit a day is not payable under any circumstances.

If your bill shows more units of CPT code 90715 for a single date of service than that, it is worth asking the billing office to explain the count — duplicate lines and unit-entry mistakes are among the most common medical-billing errors.

Related codes

HCPCS G0008Administering a flu vaccine (the injection service). HCPCS G0009Administering a pneumonia vaccine (the injection service). CPT 90686The flu vaccine (injectable, preservative-free). CPT 90688The flu vaccine (injectable, standard vial).

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Frequently asked questions about CPT code 90715

What does CPT code 90715 mean on a medical bill?

The Tdap vaccine (tetanus, diphtheria, whooping cough). Bills group it under "Vaccine", and it is typically provided in this setting: Office or pharmacy.

How many units of CPT code 90715 can be billed per day?

Medicare's Medically Unlikely Edits normally expect at most 1 unit of CPT code 90715 per patient per day. This is an absolute policy limit — more than 1 unit a day is not payable under any circumstances.

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Last reviewed 2026-08-09 · MDBillCheck Editorial Team. Plain-English explanations are original wording, not official code descriptors. Medicare amounts are public national averages for reference only — your own bill depends on your insurer, provider, and location.