Radiation Oncology (NC Medicaid Clinical Coverage Policy)
Defines Medicaid coverage, requirements, and criteria for radiation oncology treatments (external beam, brachytherapy, hyperthermia, SRS/SBRT, IMRT/IGRT/3DCRT) for NC Medicaid beneficiaries and providers.
No material clinical or coverage changes in this revision.
Coverage Criteria and Indications
General Criteria Covered
Covered when ALL of the following are met
General Medicaid medical necessity criteria
Specific Criteria Covered
Covered specific services and conditions
List of covered modalities and broad indications
Criteria for single-modality breast brachytherapy
Adjunct use covered
Covered Indications
Covered when the following are met
Treatment Management — Bundled Coverage
Radiation treatment management is bundled and covered when provided as part of radiation therapy care
These services are bundled with radiation oncologist services regardless of which code is billed.
CPT 77427 — Covered with specific requirements
CPT 77427 usage rules
Document physician management when twice-daily treatments are given; applies to external beam only.
CPT 77431 — Covered with specific requirements
CPT 77431 usage rules
CPT 77432 — Covered with exclusivity rules
CPT 77432 usage rules
Mutual exclusivity with 77435 and certain SRS codes per policy.
CPT 77435 — Covered with specific requirements
CPT 77435 usage rules
Use 77427 when >5 fractions; observe mutual exclusivity rules.
CPT 77469-77470 — Supplemental procedures
CPT 77469-77470 usage note
These are supplemental dosimetry/related procedures and are billed in addition to patient management when performed.
Under the federal EPSDT provision, Medicaid must cover services for beneficiaries under 21 when the service is medically necessary to correct or ameliorate a health problem identified through screening or evaluation. EPSDT can require coverage beyond ordinary policy limits when provider documentation shows the service meets EPSDT criteria. However, EPSDT does not require coverage for services that are unsafe, ineffective, or experimental/investigational, nor for services that are not medical in nature or not generally accepted as medical practice.
The policy explicitly excludes several specific technologies and scenarios from coverage. These include stereotactic procedures for obsessive-compulsive disorder, epilepsy, Parkinson’s disease, and migraine, as well as neutron beam and proton beam procedures. The policy also excludes Category III CPT codes, electronic/kilovoltage brachytherapy, stereotactic body radiation therapy when delivered in conjunction with other radiation delivery procedures, and stereoscopic x‑ray guidance used with stereotactic radiation management.
The policy considers certain uses of breast brachytherapy experimental or unproven. Brachytherapy following induction chemotherapy for inoperable locally advanced breast cancer, brachytherapy when the tumor is located in an area of insufficient tissue (for example very small breasts or inframammary fold), or when the tumor is multifocal, has extensive nodal involvement, or is lobular carcinoma are listed as not covered. Separately, the policy defines coverage criteria for breast brachytherapy when used as an adjunct to whole‑breast radiation or when used as the sole method of radiation only if all specified criteria (see coverage criteria) are met.
The document’s revision history and attachments show that certain radiation delivery CPT codes listed previously were deleted in earlier revisions; providers should refer to the policy attachments and revision information for specific deleted CPT entries and historical changes.
The policy restricts reporting by the same physician for certain combinations of radiosurgery/stereotactic services and radiation treatment management codes. Specifically, 77432 and 77435 cannot be reported for the same episode of care, and the same physician should not report 77432 or 77435 together with the listed stereotactic radiosurgery services (for example CPTs 61796–61800 and 63620–63621 as referenced).
Services are non‑covered when beneficiaries do not meet eligibility or the policy’s clinical criteria, when services duplicate those of another provider, or when services are experimental, investigational, or part of a clinical trial. The policy also includes an explicit list of specific not‑covered services (see exclusions) that, if billed, may result in claim denials.
Coding, Code Tables, and Key Billing Rules
| Category III CPT codes | Category III CPT codes are excluded from coverage |
Provider Responsibilities, Prior Authorization, and Documentation
Prior Authorization Required (when applicable)
If the service, product, or procedure requires prior approval, the fact that the beneficiary is under 21 years of age does NOT eliminate the requirement for prior approval. Refer to NCTracks Provider Claims and Billing Assistance Guide and the EPSDT provider page for additional information and instructions on prior approval processes. Providers must follow any prior authorization requirements applicable to radiation oncology services as directed by NCTracks and Medicaid bulletins.
- NCTracks Provider Claims and Billing Assistance Guide: https://www.nctracks.nc.gov/content/public/providers/providermanuals.html
- EPSDT provider page: https://medicaid.ncdhhs.gov/
Billing and Rates
Providers shall bill their usual and customary charges. For a schedule of Medicaid rates and reimbursement guidance, refer to the NC Medicaid website and applicable Medicaid fee schedules and bulletins. Institutional claims must follow National Uniform Billing Guidelines unless directed otherwise.
- Medicaid rate schedule and reimbursement: https://medicaid.ncdhhs.gov/
- Institutional claim billing: National Uniform Billing Guidelines
Specific Not-Covered Services
Medicaid does not cover specific services and procedures listed as not covered. Billing these services may result in claim denial.
- Stereotactic procedures for obsessive-compulsive disorder; epilepsy, recurrent seizures, or convulsions; Parkinson's disease; or migraine headaches
- Neutron beam procedures
- Proton beam procedures
- Category III CPT codes
- Brachytherapy for breast cancer in specified situations (see policy for details)
- Electronic/kilovoltage brachytherapy
- Stereotactic body radiation therapy in conjunction with other radiation delivery procedures
- Stereoscopic x-ray guidance in conjunction with stereotactic radiation treatment management procedures
Claim Type Compliance
Claims must comply with National Coding Guidelines and be submitted on the appropriate claim type. Professional services should be billed on CMS-1500/837P. Institutional claims must follow National Uniform Billing Guidelines. Failure to submit the correct claim type or to follow billing format requirements may trigger processing issues or denials.
- Professional (CMS-1500/837P transaction)
- Institutional claims: follow National Uniform Billing Guidelines
- All claims must comply with National Coding Guidelines
Improper Use of CPT Codes May Be Denied
Improper use of CPT codes or reporting codes outside stated requirements may result in claim denial. Providers must follow the CPT-specific billing rules for radiation treatment management and stereotactic services.
- Do not report 77435 when more than five fractions are given; use 77427 for >5 fractions.
- 77432 cannot be reported for the same episode of care as 77435.
- 77427 is reported as one unit for every five treatment sessions; document physician management for every five treatments when twice-daily treatment is given.
- Use the most specific CPT/HCPCS code available; unlisted codes only when no specific code exists.
Provider Resources
Providers shall comply with NCTracks Provider Claims and Billing Assistance Guide, Medicaid bulletins, fee schedules, and NC Medicaid clinical coverage policies for specific coverage, prior authorization direction, and reimbursement. These resources contain operational details and any updates affecting claims processing and authorizations.
- NCTracks Provider Claims and Billing Assistance Guide: https://www.nctracks.nc.gov/content/public/providers/providermanuals.html
- Medicaid bulletins and fee schedules: https://medicaid.ncdhhs.gov/
- Clinical coverage policies: NC Medicaid
EPSDT and Prior Approval Note
If the service requires prior approval, beneficiaries under 21 remain subject to the prior approval requirement; EPSDT exceptions require provider documentation demonstrating medical necessity and how the service meets EPSDT criteria.
- EPSDT does not eliminate prior approval requirements; provider must document medical necessity to support any EPSDT exception.
Background and Scope
Radiation oncology is the medical specialty that uses high‑energy ionizing radiation to treat malignant neoplasms and some non‑malignant conditions. The specialty includes multiple modalities such as external beam radiotherapy, brachytherapy, SRS/SBRT, IMRT/IGRT, and 3D conformal radiation therapy, and it encompasses a multidisciplinary process of treatment planning, simulation, physics/dosimetry, and physician treatment management intended to deliver safe and effective therapy.
Key Definitions
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