CurrentBlue Cross Blue Shield - Rhode IslandPolicy N/A

Intensity-Modulated Radiotherapy (IMRT)

Defines coverage and coding for intensity-modulated radiotherapy (IMRT) for Medicare Advantage and Commercial plans administered by Blue Cross Blue Shield - Rhode Island.

Policy Summary

PayerBlue Cross Blue Shield - Rhode Island

PolicyIntensity-Modulated Radiotherapy (IMRT)

Policy CodePolicy N/A

Change TypeCoverage addedcoding clarified

Effective DateOct 1, 2025

Next Review DateN/A

Key ActionSubmit procedure/clinical notes and invoice for HCPCS A4648 to ensure correct pricing when applicable.

SourceLink

POLICY UPDATE CHANGES

IMRT is covered for both Medicare Advantage Plans and Commercial Products effective 10/1/2025.

Specific CPT and HCPCS codes are listed as covered and prior authorization is not required for those codes.

2025-10-01coverage effective date

2025-07-16last review

6 codescodes listed

Medicare Advantage & Commercialplans covered

Coverage Criteria for IMRT

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Coverage — Product-level

Covered when the following product-level condition is met

Product coverage: IMRT is covered for Medicare Advantage Plans and Commercial Products effective 10/1/2025.

No additional medical criteria provided in this policy.

No specific medical criteria or clinical exclusions are provided in this policy. The policy lists Not applicable under Medical Criteria and Background; therefore there are no condition-level medical necessity criteria or patient selection restrictions included here.

There are no procedures or services identified as not medically necessary in this policy. The policy explicitly states None specified under not medically necessary items.

CPT / HCPCS Coding and Reimbursement Notes

Covered CPT/HCPCS Codes (authorization not required)mixedCovered

77301	Intensity modulated radiotherapy plan, including dose-volume histograms for target and critical structure tolerance specifications
77338	Multi-leaf collimator (MLC) device(s) for intensity modulated radiation therapy (IMRT), design and construction per IMRT plan
77385	Intensity modulated radiation treatment delivery (IMRT), includes guidance and tracking; when performed; simple (Institutional providers)
77386	Intensity modulated radiation treatment delivery (IMRT), includes guidance and tracking, when performed; complex (Institutional providers)
G6015	Intensity modulated treatment delivery, single Or multiple fields/arcs, via narrow spatially and temporally modulated beams, binary, dynamic MLC, per treatment session (Professional providers)
G6016	Compensator-based beam modulation treatment delivery of inverse planned treatment three or more high resolution (milled or cast) compensator; convergent beam modulated fields, per treatment session (Professional providers)

Not separately reimbursed for Institutional ProvidersHCPCSNot Covered

A4648

Tissue marker; implantable, any type, each (Note: Not separately reimbursed for Institutional Providers)

Coding — key metadata

Covered codes (authorization not required)CPT/HCPCS codes 77301, 77338, 77385, 77386, G6015, G6016 are listed as covered and prior authorization is not required.

Institutional reimbursement noteHCPCS A4648 is listed as not separately reimbursed for institutional providers; submit appropriate documentation to ensure correct pricing.

Documentation requirement for A4648Procedure/clinical notes and invoice must be submitted to ensure correct pricing of HCPCS code A4648.

Provider Actions, Authorization, and Documentation

Prior Authorization

Prior Authorization Not Required for Listed IMRT Codes

The following IMRT CPT/HCPCS codes are covered for Medicare Advantage and Commercial Products and do not require prior authorization.

77301 — Intensity modulated radiotherapy plan, including dose‑volume histograms for target and critical structure tolerance specifications
77338 — Multi‑leaf collimator (MLC) device(s) for IMRT, design and construction per IMRT plan
77385 — IMRT delivery, includes guidance and tracking, simple (Institutional providers)
77386 — IMRT delivery, includes guidance and tracking, complex (Institutional providers)
G6015 — IMRT delivery, single or multiple fields/arcs via narrow spatially and temporally modulated beams, per treatment session (Professional providers)
G6016 — Compensator‑based beam modulation treatment delivery, per treatment session (Professional providers)

Billing Rule

Provider Action / Billing Rule

Providers should follow standard billing guidelines and submit claims consistent with rendered services. Reserve this space for any additional immediate provider-facing actions or billing rules that affect claims submission or authorization workflows.

Documentation Required

A4648 Documentation Requirement

To ensure correct pricing for HCPCS code A4648 (Calypso 4D localization system), submit the procedure/clinical notes and the invoice with the claim so the device cost can be verified and applied appropriately.

A4648 — Tissue marker; implantable, any type, each. Invoice and clinical documentation required to support pricing for Calypso 4D localization system.

Denial Risk

Institutional Reimbursement Note

HCPCS A4648 is not separately reimbursed for Institutional Providers. Claims including A4648 billed by institutional settings may be denied or bundled into the facility payment; do not expect separate institutional reimbursement unless billing requirements and modifiers explicitly support separate payment.

A4648 — Not separately reimbursed for Institutional Providers; risk of denial or bundling into facility payment.

OpenPayer

Intensity-Modulated Radiotherapy (IMRT)

Coverage Criteria for IMRT

CPT / HCPCS Coding and Reimbursement Notes

Provider Actions, Authorization, and Documentation

Background

Definitions