HCPCS Code T1013: Sign Language or Oral Interpretive Services, per 15 Minutes

Learn how to document and bill HCPCS Code T1013 for interpreter services, including coverage rules, related codes, and reimbursement guidance.

Use Code

## **What is HCPCS code T1013?** HCPCS code T1013 describes sign language or oral interpretive services, per 15 minutes. It is used when a qualified interpreter facilitates communication between healthcare providers and patients who are deaf, hard of hearing, or have limited English proficiency. Interpreter services ensure patients and their families fully understand their diagnosis, treatment plan, and consent process, which is essential for safe and equitable care. T1013 is most commonly reimbursed through Medicaid, with coverage rules differing by state and managed care plan. Some private insurers may also cover interpreter services, but Medicare generally does not provide separate reimbursement. Under Medicare, interpreter services are considered part of the provider’s responsibility and are bundled into the underlying service. In contrast, Medicaid and certain state programs allow independent billing for these services when permitted by policy (Medicaid, 2022).

## **Documentation requirements** Accurate documentation is essential for reimbursement of HCPCS code T1013 and must demonstrate both the medical necessity of interpreter services and the details of how they were provided. ### **Physician order or encounter note** The patient’s record must include a provider order or encounter note confirming the need for interpreter services. The order should specify whether the service was for sign language or oral interpretation and connect the service directly to a medical encounter. ### **Time and service details** The documentation must clearly record the date and time of the encounter, the duration of services in 15-minute increments, and the setting in which the interpretation took place (e.g., inpatient unit, outpatient clinic, emergency department). ### **Reason for interpreter use** The record should state the clinical or legal reason for interpreter services, such as limited English proficiency or hearing impairment, to establish medical necessity. This is important for Medicaid or other payers that require justification for coverage. ### **Interpreter credentials and patient consent** The medical record should include the identity and qualifications of the interpreter, showing that a professional interpreter was used rather than a family member or child. It should also reflect that the patient was informed of their right to an interpreter and consented to its use.

## **Billing requirements** Correct billing of HCPCS code T1013 ensures providers receive appropriate reimbursement and helps avoid claim denials. Payers may have different rules, so providers must follow both CMS guidance and state-specific Medicaid policies. ### **Units and time increments** T1013 is billed in 15-minute increments, and partial units must be rounded up to the next whole unit. For example, a 25-minute session would be billed as 2 units. Accurate time tracking in the documentation is essential for claim approval. ### **Diagnosis linkage and codes** Claims should link T1013 to an appropriate ICD-10-CM diagnosis code or condition that demonstrates the need for interpreter services, such as a communication barrier, hearing loss, or limited English proficiency. This helps establish medical necessity. ### **Payer-specific policies** Coverage policies vary significantly by payer. Many state Medicaid programs reimburse for interpreter services, though some require prior authorization or special reporting forms (Masland et al., 2010). Private insurance coverage is less common and should be verified before submission. Medicare does not reimburse for T1013, but providers are still required to ensure meaningful access under Title VI of the Civil Rights Act and Section 504 of the Rehabilitation Act. ### **Record retention and audit readiness** All interpreter service records, including time logs, interpreter credentials, and documentation of patient need, must be retained and made available upon request. This ensures compliance with federal oversight and supports reimbursement in the event of an audit.

## **Other related codes** - **T1015** – Clinic visit/encounter, all-inclusive - **T2025** – Waiver services; not otherwise specified (NOS)

### **References** Masland, M. C., Lou, C., & Snowden, L. (2010). Use of communication technologies to cost-effectively increase the availability of interpretation services in healthcare settings. Telemedicine and E-Health, 16(6), 739–745. https://doi.org/10.1089/tmj.2009.0186 Medicaid. (2022). Translation and interpretation services. Mhttps://www.medicaid.gov/medicaid/financial-management/medicaid-administrative-claiming/translation-and-interpretation-services

Frequently asked questions

Yes. Many Medicaid programs cover interpreter services under T1013, though requirements for prior authorization and claim submission vary by state.

No. Medicare does not reimburse for interpreter services. However, providers are still obligated to ensure effective communication under federal civil rights laws, and the cost may not be passed on to the patient.

No. Family members and children are not considered qualified interpreters for billing purposes. Only professional interpreters may be billed under T1013 to ensure accuracy, confidentiality, and compliance with federal standards.