Radiology & Imaging Billing

TC, 26 and MPPR: the splits that decide what you actually collect

Two imaging studies on the same patient, same session. You bill both correctly and still collect less than the sum of the fee schedule. That gap is not a denial. It is the multiple procedure payment reduction working exactly as designed.

The short answer: under the CY2026 Medicare Physician Fee Schedule, when a patient gets more than one advanced imaging study in the same session, Medicare pays the technical component (TC) of the highest-valued study in full, then reduces the TC of every subsequent study by 25%. The professional component (26) is paid in full. If you do not model that reduction before you post, your expected cash and your real cash never line up.

The anatomy of one imaging claim

One study, two payments, three ways to bill it

Almost every diagnostic imaging code carries a professional/technical split. Who owns the equipment and who reads the film decides which piece you get to bill.

MODIFIER 26

Professional component

The radiologist's work: supervision, interpretation, the signed report. Billed by the reading physician when a facility owns the machine.

MODIFIER TC

Technical component

The equipment, the tech, the room, the supplies. Billed by whoever owns the machine. This is the piece MPPR reduces.

GLOBAL 26 + TC = global. A freestanding imaging center that owns the scanner and employs the radiologist bills the global service and owns both halves of the reduction math.

Read the file before you bill

The PC/TC indicator tells you what is even splittable

Every code in the Medicare PFS Relative Value File carries a PC/TC indicator. It is the field that decides whether 26 and TC are legal on that code at all. Get it wrong and you are appealing your own claim.

Diagnostic test, splittable

Both a PC and a TC exist. You may bill 26, TC, or global. Most CT, MRI, ultrasound and X-ray codes live here.

Technical only

No professional component. Modifier 26 is not valid. Screening films and some technical services sit here.

Professional only

Interpretation-only codes. There is no TC to bill and no TC to reduce.

Lab physician interpretation

Carries a PC that is separately payable. A reminder that the indicator, not the code family, governs.

Interactive

Compute what a same-session imaging encounter actually collects

Enter the imaging services for one patient, one session. Pick how each is billed. The panel ranks them by technical component, applies the CY2026 25% TC reduction to the second and subsequent studies, and shows the real collected amount against the naive sum. Dollar values are illustrative, not a fee schedule.

Same-Session Imaging Collection Model

MPPR · TC −25% · CY2026

Naive sum (no MPPR)

Actual collected

MPPR reduction

Ranking is by technical component, highest first. The top TC is paid in full; each subsequent TC is multiplied by 0.75. Professional components (26) are never reduced under the current imaging MPPR. Global services are split internally so their TC portion enters the ranking.

The 2026 guidelines by name

What the rules actually say

Imaging MPPR, 25% on TC

The CMS Physician Fee Schedule reduces the technical component of the second and subsequent imaging services in the same session by 25%. The reduction survives into the CY2026 final rule.

CMS CY2026 PFS Final Rule · MPPR on diagnostic imaging

Professional component paid in full

The prior 5% MPPR on the professional component of imaging was eliminated by statute. For CY2026, the 26 component of each study is paid without a multiple-procedure cut.

Consolidated Appropriations carve-out · carried in CY2026 PFS

PC/TC indicator governs the split

Whether a code can carry 26 or TC is set by the PC/TC indicator in the annual Relative Value File. Indicator 1 is splittable; 3 is technical-only; 2 is professional-only.

Medicare PFS Relative Value File · PC/TC indicator field

Same session, same day scope

The reduction applies within a defined family of imaging codes when furnished to the same patient in the same session, regardless of imaging modality.

CMS Claims Processing Manual · multiple imaging procedures

ACR guidance on reporting

The American College of Radiology advises verifying component ownership and modifier accuracy before submission so the reduction lands on the correct line and appeals are not triggered by your own coding.

ACR coding and reimbursement guidance

Highest value is protected

Ranking matters. The study with the highest technical component is paid in full, so line ordering and correct allowables drive whether the reduction hits your cheapest or your most expensive TC.

CMS CY2026 PFS · MPPR ranking methodology

Where the money leaks

Four places the split quietly costs a practice

Expected cash is set to the naive sum

A high-volume outpatient imaging archetype posts charges at full fee schedule for both studies. The 25% TC reduction is never modeled, so every same-session encounter reads as an underpayment that gets worked as a denial that was never a denial.

Wrong component billed

A hospital-based reading group bills global on a study where the facility owns the equipment. The TC gets recouped, the claim reopens, and the professional revenue that was clean gets tangled in the takeback.

Reduction applied to the wrong line

Studies posted out of TC order let the payer protect the cheaper technical component and cut the expensive one. Same rule, worse outcome, entirely avoidable with correct allowables at charge entry.

Appeals aimed at the payer

Staff appeal a correct MPPR adjustment, burn the timely-filing clock, and lose the write-off argument. The fix was never an appeal. It was an expected-reimbursement model that knew the reduction was coming.

We build the reduction into your expected cash, not into your denial queue

ASP-RCM Solutions models the CY2026 imaging MPPR, the PC/TC split, and component ownership into your charge master and your variance logic. Same-session imaging posts at the amount you will actually collect, so your team works true underpayments and stops appealing the fee schedule. That is the difference between a clean radiology book and a busy one.

Talk to our imaging billing team