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CPT 77423 Medicare payment status

Contractor-priced

77423 · PFS Q4 2026

No national PFS rate in Q4 2026

Your Medicare Administrative Contractor prices this code case by case, usually after reviewing documentation.

Check for a published amount in your locality.

PFS status evidence

Inspect PFS status evidence
Code
77423
Release
Q4 2026, revision 2
Result
Contractor-priced

Citations

  • Shows this code’s PFS status (C). Result: Contractor-priced.

    Physician relative value file (PPRRVU)CMS RVU26DOctober 1 – December 31, 2026revision 2

    This PFS record alone does not establish a $0 allowance or a coverage determination. Any amount from another schedule needs its own evidence.

    PPRRVU2026_Oct_nonQPP.csv row 9,101 in rvu26d-updated-08-26-2026.zip

    In the CMS file

    Loading rows 9,099–9,103 of PPRRVU2026_Oct_nonQPP.csv…

    Download rvu26d-updated-08-26-2026.zip from CMS File fingerprint 4d0d3f19bd954ffc0f5b8439169d267da023d4f6911f4539bb6e98723cb1a626

Plain-text summaryReport a problem

CPT 77423 has no published national rate. It carries status C (carrier-priced) in the Q4 2026 release. Your Medicare Administrative Contractor prices this code case by case, usually after reviewing documentation. The blank amount means unpriced, not $0.

Why is there no national PFS amount for 77423?

Its status indicator is C (carrier-priced). Your Medicare Administrative Contractor prices this code case by case, usually after reviewing documentation.

Payment considerations Copy link

Here are the inputs and payment rules that apply to this code. Each link takes you to the detail below.

Other payment indicators (6)
Facility/non-facility: Not determined, Bilateral adjustment: Does not apply, Multiple-procedure reduction: Does not apply, Assistant/co-surgeon treatment: Does not apply, Global surgery: Does not apply, Other fee-schedule routing: Does not apply.
Why would a Medicare claim for 77423 be denied or paid less?

These come from CMS indicators on this page, not general billing advice.

  • Its status indicator is C (carrier-priced)—Your Medicare Administrative Contractor prices this code case by case, usually after reviewing documentation. See status indicators
  • 110 codes form NCCI pairs with 77423 carrying modifier indicator 0—no NCCI-associated modifier bypasses the edit, so billed together on the same date of service, a line of the pair denies. See billing together
  • 115 codes pair with 77423 under modifier indicator 1—separately payable only when an NCCI-associated modifier (59, or a more specific XE, XS, XP, or XU) is clinically appropriate and the documentation supports a distinct service; without one, a line of the pair denies. See billing together
  • More than 1 unit per patient per date of service exceeds 77423's Medically Unlikely Edit (MUE) limit. See billing together
  • Only a technical component exists for 77423—there is no professional-component amount to bill. See billing policy
  • Bilateral surgery: no bilateral adjustment. See billing policy
  • Assistant at surgery: restricted without documentation. See billing policy
  • Co-surgeons: not permitted. See billing policy
  • Team surgery: not permitted. See billing policy

Payer-specific coverage and documentation rules live outside these files, so a claim that clears every check here can still be denied on other grounds.

What do commercial payers pay? Copy link

Which billing rules and modifiers apply? Copy link

Global period: what 77423's fee already covers Copy link

XXX Does not apply

The global surgery concept does not apply to this code.

Billing policy Copy link

These billing-policy indicators explain how 77423 is treated. They apply whether the code is nationally priced or carrier-priced: a restriction like "bilateral not allowed" still matters on a carrier-priced code.

Policy Value What it means
Bilateral surgery 0 No bilateral adjustment. The 150% bilateral payment adjustment does not apply to this procedure.
Assistant at surgery 0 Restricted without documentation. Payment for an assistant at surgery is restricted for this procedure unless supporting documentation establishes medical necessity.
Co-surgeons 0 Not permitted. Medicare does not recognize co-surgeons (modifier 62) for this procedure.
Team surgery 0 Not permitted. Medicare does not recognize a surgical team (modifier 66) for this procedure.
Multiple procedures 0 No reduction. No multiple-procedure reduction applies when this procedure is billed with others on the same date; each is paid at its full fee schedule amount.
Professional/technical split 3 Technical component only. Only a technical component exists for this code—there is no corresponding professional-component amount to bill.

Can you bill it with another code? Copy link

Check a pair of codes Copy link

Enter a second CPT or HCPCS code billed on the same date of service. We'll check the current NCCI procedure-to-procedure edit for the pair.

See every current NCCI pair for 77423 →

Billing together (NCCI edits) Copy link

NCCI Q4 2026

Based on CMS's National Correct Coding Initiative (NCCI). A few examples appear here; use the complete edit page to check a specific pair.

Not separately payable with 77423 on the same date of service—no modifier bypasses the edit (modifier indicator 0)

0596T 0596T denies
0597T 0597T denies
11920 11920 denies

Showing 3 of 110.

Separately payable with 77423 only when an NCCI-associated modifier is appropriate and documented (modifier indicator 1)

0591T 0591T denies
0592T 0592T denies
0593T 0593T denies

Showing 3 of 115.

Modifier 59 and the X modifiers are not a universal bypass—CMS expects the most specific applicable modifier, and which one that is depends on the pair and the documented circumstances.

Check a paired code or view all 225 NCCI pairs →

Medically Unlikely Edit (MUE) limit: 1 unit per patient per date of service.

Reconciling a contractor-priced payment for 77423 Copy link

There is no national allowed amount for 77423, so every reconciliation of this line runs against the MAC fee schedule that was in force for the date of service rather than against a national baseline.

What to check

  • Compare the paid amount against the MAC fee schedule in force for the date of service; there is no national allowed amount here to reconcile against.
  • Only a technical-component amount is published for this code, so a professional charge billed on it has no fee-schedule amount behind it.
  • Check for documentation on file before appealing an assistant-at-surgery denial: payment on the -80 or -AS line is restricted for this procedure unless medical necessity is established.
  • Reprice the line against the release, locality, setting, modifier and participation status that applied to the date of service before treating any difference as an underpayment.

Sources: CMS Medicare Physician Fee Schedule Relative Value Files; CMS Medicare Physician Fee Schedule Relative Value Files (status indicator field); CMS Medicare Claims Processing Manual (Pub. 100-04); 42 USC 1395w-4(i)(2) (SSA §1848(i)(2))—Assistants-at-surgery.

How has it changed? Copy link

When does this rate change?

CMS publishes a fee schedule release every quarter (January, April, July, October), and each is versioned here. See what changed each release, or get an email when a new release moves rates.

The 77423 rate last moved in Q4 2015. See its rate history.

Sources: CMS Medicare Physician Fee Schedule Relative Value Files.

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Source & method

Show sources

Contractor amounts come from the MAC-published schedules and effective dates shown above. The PFS file shows this code is priced by the contractor. Past releases are never edited, so these sources stay valid after CMS publishes a newer one. Our methodology explains sourcing, parsing, versioning, and how we cross-check claims before we publish them.

Cite this rate

The citation names the release, so anyone can check it even after CMS publishes a newer one.

CPT 77423 National PFS baseline: No national PFS rate (Q4 2026; participating physician; whole service; GPCI 1.000; sequestration excluded). CMS RVU26D, PPRRVU2026_Oct_nonQPP.csv row 9,101. Localis. https://localishealth.com/cpt/77423/2026/D