CPT 78282Radiology

Gi protein loss exam

CPT code 78282 covers a nuclear medicine test that measures protein loss through the gastrointestinal tract by tracking a radioactive tracer. This diagnostic study helps identify conditions where the body loses excessive protein through the digestive system.

Showing rates for

National Average

Base Medicare rate

$14.56

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

0.38

PE RVU (NF)

0.06

MP RVU

0.01

Total RVU

0.45

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

NCCI bundling edits

Loading bundling edits…

Billing tips

Always append modifier 26 when billing for professional interpretation only in hospital or facility settings where you don't own the equipment
Impact: Prevents denials and recoupment; failure to use modifier 26 may result in overpayment recovery demands averaging 60-70% of the claim amount
Verify pre-authorization requirements as many payers classify 78282 as an advanced diagnostic imaging service requiring prior approval
Impact: Prior authorization compliance prevents 100% claim denial; retroactive authorization is rarely granted for nuclear medicine studies
Document the collection period (24-96 hours) and specific radiopharmaceutical used in the interpretation report
Impact: Strengthens medical necessity defense during audits; missing collection protocol details account for 30% of post-payment review denials
Bill on the date of interpretation, not the date of tracer administration, when there's a delay between injection and reading
Impact: Aligns with Medicare timely filing rules and ensures proper date of service for professional component billing
Link to specific ICD-10 codes documenting hypoalbuminemia, protein-losing enteropathy, or related GI conditions to establish medical necessity
Impact: Vague or non-specific diagnosis codes increase denial risk by 40-50%; use K90.49, E43, or K63.89 when appropriate
Coordinate billing with the facility for technical component to ensure both components are submitted with matching dates and diagnosis codes
Impact: Mismatched claims between TC and 26 components trigger automatic payer edits resulting in one or both components being denied

Live Field Datano reports yet

Real billers contribute denial patterns and appeal strategies for this code. Once 5+ reports come in, you’ll see live aggregated data here — the only place this exists, free.

Working with CPT 78282?

Get the free Revenue Protection Toolkit — the denial triggers, modifier pitfalls, and bundling conflicts that quietly cost you reimbursement. Instant download.

Help build the field knowledge

MedPayIQ gets smarter as billers contribute. If you've had this code denied, share what happened so others learn from it. Anonymous, no patient info.

Related actions

Frequently asked questions

What is the Medicare reimbursement rate for CPT code 78282 in 2025?

The 2025 Medicare national average payment for CPT 78282 is $14.56 for both facility and non-facility settings. This rate is based on 0.45 total RVUs (0.38 work RVU, 0.06 practice expense RVU, 0.01 malpractice RVU) multiplied by the 2025 conversion factor of 32.3465. Actual payment may vary based on geographic location and GPCI adjustments.

Do I need to use modifier 26 when billing CPT 78282?

Yes, you must append modifier 26 to CPT 78282 when billing only for the professional interpretation component in a facility setting where you don't own the nuclear medicine equipment. The facility separately bills the technical component (modifier TC). If you perform and interpret the study in your own office with your own equipment, bill the global code without modifiers.

What diagnosis codes support medical necessity for CPT 78282?

Common ICD-10 codes that support medical necessity for GI protein loss studies include K90.49 (malabsorption due to intolerance), E43 (unspecified severe protein-calorie malnutrition), K63.89 (other specified diseases of intestine), R77.0 (abnormality of albumin), and specific codes for Crohn's disease, ulcerative colitis, or intestinal lymphangiectasia when protein loss is documented.

How long does a GI protein loss exam take and when should I bill it?

The actual nuclear medicine scan involves tracer administration followed by 24-96 hours of stool collection for radioactivity measurement. For billing purposes, the professional component (code 78282 with modifier 26) should be billed on the date you complete the interpretation and sign the final report, which is typically 3-5 days after the initial tracer administration.

Can CPT 78282 be billed with other GI imaging procedures on the same day?

Yes, but you may need modifier 59 to indicate it's a distinct procedural service. CPT 78282 is not typically bundled with other GI imaging codes, but payer edits may flag same-day billing. Ensure documentation clearly shows the protein loss study addressed a different clinical question than other imaging studies performed the same day.

What are the credentials required to bill CPT 78282?

The interpreting physician must be board-certified in nuclear medicine or radiology with nuclear medicine specialization and hold authorized user status under NRC or Agreement State regulations. The physician must personally review the images and quantitative data, then document their interpretation. Technologists can perform the technical component under appropriate supervision, but only qualified physicians can bill for the professional interpretation.

Why is the RVU value for CPT 78282 relatively low at 0.45 total RVUs?

The 0.45 total RVU reflects that 78282 represents only the professional interpretation component of the study, not the technical work of tracer preparation, administration, or sample analysis. The work RVU of 0.38 indicates the cognitive effort for interpretation is relatively straightforward compared to complex imaging procedures. The technical component, billed separately, carries additional RVUs and reimbursement for equipment, supplies, and technologist time.