Using the wrong Tdap CPT code can cause denials, missed administration revenue and incorrect patient balances. The risk increases when a claim involves pediatric counseling, an injury or Medicare coverage. Fortunately, a consistent coding process can prevent most errors. This guide explains CPT 90715, administration codes, diagnosis selection, modifiers, documentation and reimbursement for accurate Tdap billing in 2026.
What Is the Tdap CPT Code?
The Tdap CPT code is 90715. It identifies the tetanus, reduced diphtheria toxoid and acellular pertussis vaccine for patients age 7 or older when the provider administers it intramuscularly.
CPT 90715 represents the vaccine product. It does not include the work involved in administering the vaccine, so providers normally report an appropriate administration code separately.
| Detail | CPT 90715 information |
|---|---|
| Vaccine | Tetanus, diphtheria and acellular pertussis |
| Abbreviation | Tdap |
| CPT age descriptor | Age 7 or older |
| Route | Intramuscular |
| Code type | Vaccine product |
| Includes administration | No |
| CDC CVX code | 115 |
The CDC vaccine code table maps CPT 90715 to CVX code 115 and identifies it as Tdap for individuals age 7 or older. The CDC also advises practices to select the most specific code for the product administered.
What Does CPT 90715 Include?
CPT 90715 identifies a vaccine with three immunization components:
- Tetanus toxoid
- Reduced diphtheria toxoid
- Acellular pertussis
The code does not include vaccine administration, counseling, wound treatment or a separate office visit. Providers must report and document those services independently when the payer allows separate billing.
The CPT age descriptor also does not replace the FDA-approved labeling of an individual product. Tdap products such as Boostrix and Adacel may have different licensed indications, so clinical staff should verify the current product label before administration.
CPT 90715 vs. 90714 vs. 90700
A record that only says “tetanus shot” does not provide enough information for accurate coding. The coder should confirm the product name, formulation, patient age and whether the vaccine includes pertussis.
| CPT code | Vaccine | General age descriptor | Primary difference |
|---|---|---|---|
| 90715 | Tdap | Age 7 or older | Includes tetanus, diphtheria and pertussis |
| 90714 | Td | Age 7 or older | Does not include pertussis |
| 90700 | DTaP | Younger than age 7 | Pediatric DTaP formulation |
CPT 90715 and 90714 both apply to patients age 7 or older. However, only 90715 includes the acellular pertussis component.
CPT 90700 identifies the pediatric DTaP formulation. Billers should never select 90715 solely because the patient needs protection against tetanus.
Which Administration Code Goes With CPT 90715?
The correct administration code depends on the patient’s age, counseling and the number and route of vaccines administered.
Administration with qualifying counseling
Codes 90460 and 90461 may apply when:
- The patient is 18 or younger.
- A physician or qualified healthcare professional provides counseling.
- The counseling involves the patient or family.
- The medical record supports the counseling.
Tdap contains three vaccine components. Therefore, a qualifying encounter may support 90460 for the first component and 90461 for the two additional components.
The claim may show:
- 90460 with one unit
- 90461 with two units
Some payers want the two 90461 units on one claim line, while others apply different line-reporting instructions. Practices should check the payer’s current billing requirements.
Giving a Vaccine Information Statement alone does not satisfy the counseling requirement. The record must show that a physician or qualified healthcare professional performed the required counseling.
Administration without qualifying counseling
CPT 90471 generally applies when a provider administers the first injectable vaccine without meeting the counseling requirements for 90460. This code commonly applies to adults and pediatric encounters without qualifying counseling.
CPT 90472 may apply to each additional vaccine injection at the same encounter. It does not represent the additional components within the Tdap product. CPT 90461 serves that purpose when the counseling requirements apply.
| Encounter | Potential administration coding |
|---|---|
| Patient age 18 or younger with qualifying counseling | 90460 once and 90461 twice |
| Patient age 18 or younger without qualifying counseling | 90471 |
| Adult receiving only Tdap | 90471 |
| Tdap as an additional injected vaccine | 90472 may apply |
| Multiple vaccine products | Report each product and applicable administration |
Commercial insurers and state Medicaid programs may apply different edits. Therefore, billing teams should verify each payer’s administration policy.
Which Diagnosis Code Supports CPT 90715?
The correct ICD-10-CM diagnosis depends on the reason for vaccination. A routine immunization and an injury-related vaccination do not follow the same diagnosis logic.
Routine Tdap vaccination
Z23 identifies an encounter for immunization and may support a routine preventive Tdap service. However, the payer must accept it for the reported benefit and circumstances.
Z23 does not replace complete documentation. The record should still identify the product, route, administration details, consent and reason for the service.
Tdap following an injury
When a patient receives Tdap because of an injury, the provider should document and code the specific injury. The code may need to identify the injury type, body location, laterality and encounter status.
For Medicare Part B, do not use Z23 as the diagnosis that establishes medical necessity for an injury-related Tdap service. Report the documented injury code to the highest available specificity.
Z23 might describe an immunization encounter in another context, but it does not demonstrate why Medicare should cover a tetanus-containing vaccine as treatment related to an injury.
Tdap during pregnancy
For pregnancy-related Tdap vaccination, coders should select the diagnosis that matches the documented encounter, trimester and pregnancy circumstances. One pregnancy code cannot accurately represent every Tdap encounter.
The provider should document the pregnancy status and reason for vaccination. The coding team should then apply current ICD-10-CM instructions and payer requirements.
Does Medicare Cover the Tdap Vaccine?
Medicare coverage depends on whether the patient receives Tdap because of an injury or as a routine preventive vaccination.
Medicare Part B coverage
Medicare Part B may cover Tdap when the vaccine directly relates to treating an injury or direct exposure. The claim should include CPT 90715, the applicable administration code and a diagnosis that accurately describes the injury.
The CMS-hosted Palmetto GBA billing article A54767 states that Z23 should not support an injury encounter and that Medicare A and B do not cover preventive tetanus vaccination without an injury or direct exposure.
However, A54767 applies to the jurisdictions listed in the article. Providers should check their own Medicare Administrative Contractor’s policy before filing the claim.
The record should connect the injury to the vaccination. A vague preventive diagnosis may cause Medicare to deny the claim even when the patient received Tdap during an injury encounter.
Medicare Part D coverage
Medicare Part D covers routine Tdap vaccination. According to Medicare.gov’s Tdap coverage guidance, beneficiaries with Part D pay nothing for ACIP-recommended adult Tdap vaccination that Part B does not cover.
Practices should not automatically send routine Tdap claims to Medicare Part B. They should determine whether they can process the service through the patient’s Part D benefit.
A medical office may need pharmacy-billing capability, an outside pharmacy arrangement or another Part D workflow. The practice should verify the plan’s submission requirements before collecting payment from the patient.
Commercial Insurance, Medicaid and VFC Billing
Commercial insurers may reimburse CPT 90715 and its administration separately. However, coverage, cost sharing and claim edits depend on the patient’s plan.
Medicaid requirements vary by state. Practices should verify state-specific administration rates, modifier requirements and provider-enrollment rules.
Under the Vaccines for Children program, participating providers receive qualifying vaccine products without purchasing them. Providers generally cannot charge the patient or payer for the supplied vaccine product, but they may bill an eligible administration service.
Many state programs require modifier SL on the vaccine product line to identify a state-supplied product. Because state instructions differ, practices should follow the applicable Medicaid and VFC billing manual.
Modifiers Used With CPT 90715
Modifiers do not automatically apply to every Tdap claim. The documentation and payer policy must support each modifier.
| Modifier | Potential purpose | Usual placement |
|---|---|---|
| 25 | Separate, significant E/M service | E/M code |
| GY | Service Medicare statutorily excludes | Applicable noncovered line |
| SL | State-supplied vaccine | Vaccine product line when required |
Modifier 25
Modifier 25 does not belong on CPT 90715. Instead, providers may append it to a separately identifiable E/M service performed on the vaccination date.
For example, a provider may manage an unrelated chronic condition before administering Tdap. If the record supports a significant and separate established-patient visit, the practice may report an E/M code such as 99214 with modifier 25.
Review the CureMD Billers 99214 CPT code guide for E/M documentation and modifier requirements.
Modifier GY
Modifier GY identifies a service that Medicare statutorily excludes or does not recognize as a Medicare benefit. A MAC may instruct providers to append GY when they know Medicare Part B does not cover a routine Tdap product or its administration.
Some MAC examples place GY on both the noncovered vaccine product and administration lines. Practices should follow their own MAC’s instructions instead of assuming that one placement applies nationally.
G2211 and vaccine administration
Medicare may allow G2211 in certain encounters that include vaccine administration and a separately identifiable E/M service with modifier 25. However, the E/M service must still support the required ongoing or longitudinal care relationship.
The CureMD Billers G2211 CPT code guide explains this vaccine-administration exception and the supporting documentation.
Documentation Requirements for CPT 90715
The record should contain:
- Vaccine name and product
- Date and dose
- Route and anatomical site
- Manufacturer
- Lot number and expiration date
- Administrator’s identity
- Vaccine Information Statement edition
- Date the patient received the statement
- Patient or guardian consent
- Counseling provider when applicable
- National Drug Code when required
- VFC or state-supplied status
- Injury details when relevant
If the provider also reports an E/M service, the record should show its separate medical necessity and work. A routine pre-vaccination assessment alone does not support an additional office visit.
CPT 90715 Reimbursement in 2026
CPT 90715 does not have one universal reimbursement rate. Payment varies by payer, contract, geographic location, vaccine source and benefit structure.
The payer may calculate separate amounts for the Tdap product and administration. It may also apply different rules to counseling-based administration, separately identifiable E/M services and state-supplied products.
Medicare Part B and Part D process Tdap under different benefit pathways. In addition, VFC participation may eliminate product reimbursement while allowing payment for administration.
Practices should verify current payment through the payer portal, contract or applicable fee schedule. They should avoid using unsupported national reimbursement estimates.
Common Tdap Billing Errors
Common errors include:
- Treating 90715 as an administration code.
- Forgetting to report vaccine administration.
- Reporting 90460 without qualifying counseling.
- Reporting the wrong number of 90461 units.
- Using 90472 for vaccine components instead of additional injections.
- Confusing Tdap with Td or DTaP.
- Using Z23 as the medical-necessity diagnosis for a Medicare injury claim.
- Sending routine Medicare Tdap directly to Part B.
- Appending modifier 25 to CPT 90715.
- Charging for a VFC-supplied product.
- Omitting the route, site, lot number or injury details.
- Assuming one GY policy applies to every MAC.
Tdap Billing Examples
Adolescent with qualifying counseling
A qualified healthcare professional counsels a 12-year-old and the family before administering Tdap. The documentation may support 90715, 90460 once and 90461 with two units.
Adult routine vaccination
An adult receives one routine Tdap injection. The claim may include 90715, 90471 and Z23 when the payer accepts this combination.
Medicare injury encounter
A Medicare beneficiary receives Tdap because of a documented injury. The practice may report 90715 and 90471 with the specific injury diagnosis when the service satisfies the applicable MAC policy.
Routine Medicare vaccination
A Medicare beneficiary requests a routine Tdap booster without an injury or direct exposure. The practice should check the patient’s Part D benefit instead of automatically billing Part B.
Tdap with a separate office visit
A provider treats a separately identifiable condition and administers Tdap during the same encounter. The claim may include the supported E/M code with modifier 25, CPT 90715 and the applicable administration code.
These examples provide general guidance. Payer contracts, state programs and MAC policies may require different reporting.
Final Takeaway
Accurate Tdap billing starts with CPT 90715 for the vaccine product and the correct administration code for the encounter. Billing teams must distinguish vaccine components from additional injections, routine vaccination from injury treatment, and Medicare Part B from Part D.
Complete documentation and payer-specific verification can reduce denials, protect reimbursement and prevent incorrect patient balances.
Frequently Asked Questions
What is the CPT code for Tdap?
The Tdap vaccine CPT code is 90715. It identifies the Tdap product for patients age 7 or older when the provider administers it intramuscularly.
Does CPT 90715 include administration?
No. Providers normally report an appropriate administration code separately when the payer covers the administration service.
Can CPT 90715 and 90471 appear on the same claim?
Yes. CPT 90715 identifies the product, while 90471 may identify administration of the first injected vaccine.
How many units of 90461 apply to Tdap?
Because Tdap contains three components, a qualifying counseling encounter may support two units of 90461 in addition to one unit of 90460.
Can providers use Z23 for a Medicare injury claim?
Providers should not use Z23 as the medical-necessity diagnosis for an injury-related Medicare Part B claim. They should report the specific injury diagnosis.
Does Medicare cover routine Tdap?
Medicare Part D covers routine Tdap vaccination. Medicare Part B may cover Tdap when it directly relates to treating an injury or direct exposure.
Does CPT 90715 require modifier 25?
No. Modifier 25 belongs on a separately identifiable E/M service, not on the Tdap product code.
What is the difference between 90715 and 90714?
CPT 90715 identifies Tdap and includes the pertussis component. CPT 90714 identifies Td and does not include pertussis.
