ANSWER FIRST

The October 1, 2026 NCCI files post in September. If your scrubber still runs January rules, it is already two versions stale.

CMS refreshes the National Correct Coding Initiative PTP and MUE edit files every quarter, effective January 1, April 1, July 1, and October 1. The July 1, 2026 update, posted June 1, 2026, added, deleted, and revised MUE values across practitioner, outpatient hospital, and DME services. The fix is not heroics on denial day. It is a standing 30-day pre-quarter review that diffs your top 200 code pairs against the new file before the effective date, every cycle.

The 2026 quarterly cycle

Four effective dates, one recurring failure mode

Each quarterly release silently changes which code pairs deny and which unit counts get rejected. Nothing announces the change on your claims. The first symptom is a clean-claim rate that drifts down for reasons nobody in the daily huddle can name.

What a refresh actually touches

Three file families, two edit types

The quarterly package is not one file. PTP edits govern which code pairs can be reported together, and MUEs cap units of service per code. Both are published in separate files by setting, so a practice scrubber and a hospital outpatient scrubber can drift independently.

The July 1, 2026 cycle demonstrated the pattern in full: additions, deletions, and revisions landed in the MUE files for practitioner, outpatient hospital, and DME services in a single quarter. A team that only checks the PTP file misses half the blast radius. A team that only checks practitioner files misses the other settings entirely.

The rule people get wrong

Modifier indicator 1 is not a green light

Every PTP edit carries a modifier indicator, and misreading it is the fastest way to convert a denial problem into an audit problem.

Two corollaries follow. First, the existence of an edit does not prove both services are billable when documentation happens to exist, the underlying coding still has to be correct. Second, bypass decisions should be tested on complete claims, not on isolated line extracts, because edits evaluate the claim as a whole.

The standing process

The 30-day pre-quarter review, dated for October 1

CMS posts each quarterly file about a month ahead, the July 1 file arrived June 1 and the October 1 file posts in September. That window is the whole opportunity. Here is the cadence, anchored to the October 1, 2026 effective date.

Operator checklist

Print this, pin this

• Calendar recurring holds for the four posting windows, roughly one month before January 1, April 1, July 1, and October 1.
• Assign one named owner for the quarterly diff, a process without an owner is a process that stopped in February.
• Keep a rolling top-200 code-pair list by volume and dollars, refreshed from your own billing data each quarter.
• Treat every modifier indicator 1 hit as a documentation question first and a modifier question second.
• Never let indicator 0 pairs into any bypass logic, in the scrubber or in appeal templates.
• Retire local rules tied to deleted edits so clean claims stop getting held for edits CMS removed.
• Validate against the current 2026 NCCI Medicare Policy Manual chapter for your specialty, the manual explains intent the edit tables cannot.

Make the quarterly refresh someone's job, ours

ASP-RCM Solutions runs this pre-quarter review as a standing service for coding and edits teams, PTP and MUE diffs on your actual code mix, staged scrubber updates, and documentation standards for every conditionally bypassable pair, with coding accuracy held at 95% or higher. Before the October 1, 2026 files go live, get your top 200 pairs reviewed.

Book a pre-quarter edit review