CPT 77263Radiology

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CPT code 77263 covers complex radiation therapy treatment planning, which is the detailed, computer-based preparation required before a patient receives radiation treatment for cancer. This involves creating a sophisticated treatment plan that calculates radiation dose distribution to target tumors while protecting healthy tissue.

Showing rates for

National Average

Base Medicare rate

$164.97

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

3.14

PE RVU (NF)

1.72

MP RVU

0.24

Total RVU

5.1

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Ensure documentation explicitly states 'complex' planning elements including number of treatment areas, use of blocking, dose-volume histogram analysis, and specific calculation methods
Impact: Proper documentation prevents downcoding to 77262 (intermediate planning), protecting $55-75 in reimbursement per case
Bill 77263 only once per treatment course, not per fraction or per treatment area
Impact: Multiple billing triggers automatic denials and potential fraud flags; ensure billing staff understands one planning code per distinct treatment course
Document all isodose curves, dose-volume histograms, and tissue heterogeneity corrections in the treatment planning record
Impact: These specific elements distinguish complex from intermediate planning and support the higher 5.1 total RVU value during audits
Verify that simulation codes (77280-77295) and dosimetry (77300, 77331) are billed separately when performed, as these are not bundled with 77263
Impact: Appropriate unbundling can add $150-400 to total reimbursement per treatment planning episode
For IMRT cases, ensure 77263 is billed in conjunction with 77301 (IMRT dosimetry) and appropriate delivery codes to capture full payment
Impact: 77301 adds approximately $150-250 to the treatment planning phase reimbursement
Check payer-specific policies on frequency limitations; many payers limit 77263 to once per treatment site per 12-month period unless replanning is medically necessary
Impact: Preauthorization for replanning scenarios prevents denials averaging $164.97 per rejected claim

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 77263 in 2025?

The 2025 Medicare national average reimbursement for CPT 77263 is $164.97 for both facility and non-facility settings, based on 5.1 total RVUs and a conversion factor of 32.3465.

How many times can you bill CPT 77263 for the same patient?

CPT 77263 should be billed only once per distinct treatment course. Replanning for recurrence, new treatment site, or significant disease progression may justify a second 77263 with appropriate modifiers (76 or 77) and documentation of medical necessity.

What is the difference between CPT 77262 and 77263?

CPT 77262 represents intermediate complexity planning (typically 1-2 treatment areas, simple blocking), while 77263 is complex planning requiring sophisticated dose calculations, multiple treatment areas or ports, tissue heterogeneity corrections, and advanced techniques like IMRT or SBRT. The complexity level should be documented in the treatment planning record.

Can CPT 77263 be billed with modifier 26 or TC?

While modifiers 26 (professional component) and TC (technical component) exist, they are rarely applicable to 77263 because the facility and non-facility rates are identical at $164.97, and the service is typically performed as a complete procedure in radiation oncology settings.

What documentation is required to support billing CPT 77263?

Required documentation includes a signed treatment plan, dose-volume histograms, isodose curves, specification of multiple beam arrangements (typically 3+), tissue heterogeneity corrections, blocking specifications, and physician attestation of complexity factors justifying complex-level planning.

How many RVUs is CPT code 77263 worth in 2025?

CPT 77263 has 5.1 total RVUs in 2025, consisting of 3.14 work RVUs, 1.72 practice expense RVUs (both facility and non-facility), and 0.24 malpractice RVUs, reflecting the significant physician work involved in complex treatment planning.

Can CPT 77263 and 77301 be billed together?

Yes, CPT 77263 (complex planning) and 77301 (IMRT dosimetry) are commonly billed together for intensity-modulated radiation therapy cases. They represent distinct services: 77263 covers the overall treatment planning while 77301 specifically addresses the inverse planning and dose optimization unique to IMRT.