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WeeklyIssue 4 · 3 min read

Two new modifiers nobody is talking about

BB and BC arrive January 1. They don't change payment, which is exactly why they matter.

BB and BC arrive January 1. They don't change payment, which is exactly why they matter.

Coding Desk

BB and BC: the modifiers that pay nothing and reveal everything

Two new telehealth modifiers take effect January 1, 2027, required by section 6209(g) of the Consolidated Appropriations Act, 2026.

  • BB and BC report telehealth platform contract relationships and incident-to billing arrangements.
  • Neither changes payment.

That second line is the whole story. A modifier that changes no payment exists to create data, and these two make platform-affiliated telehealth visible in claims data for the first time.

Somebody at CMS wants to know which telehealth visits run through third-party platforms and which run through contracted or incident-to arrangements. They are building that dataset starting January 1. Datasets built this way tend to become policy within two or three cycles.

Why this is a coding operations problem, not a billing one

A modifier that changes payment gets attention. Your scrubber flags it, your denials teach you, your coders learn it in week two.

A modifier that changes nothing financially fails silently. You can omit BB and BC for a year and never see a rejection. Then a payer runs a retrospective review against the dataset you helped build, finds your platform-affiliated visits unmarked, and asks why.

Three questions to answer before January:

  • Which of your telehealth volume runs through a platform contract? Most practices have never had to classify this, because no code ever asked.
  • Which runs incident-to? Same problem.
  • Who decides, the coder or the scheduler? If the information never reaches the chart, your coder cannot apply the modifier no matter how well they know the rule.

That third question is where this breaks for most teams. The modifier depends on a contractual fact that lives in an operations system, not in clinical documentation.

What Changed

Medicare telehealth flexibilities now run through December 31, 2027. The Consolidated Appropriations Act, 2026 extended the geographic and originating-site waivers, along with FQHC and RHC distant-site billing.

What it does to your claims: you have a full year of planning runway instead of the quarterly cliff you have lived with since 2020. Audio-only coverage and the tele-mental health in-person delay carry different end dates depending on the source, so confirm those against the statute before you rely on either. Behavioral health telehealth is permanent.

NCCI v33.0 change reports expected around November 17. One week out.

What it does to your claims: this is the working document. Diff it against v32.3 and flag every modifier-indicator change among your top 20 code pairs by volume.

Denial Watch

Prior authorization decision timelines tightened on January 1, 2026, and most teams have not re-baselined against them.

Under CMS-0057-F, impacted payers must decide standard prior authorization requests within 7 calendar days, down from 14, and expedited requests within 72 hours. Every denial must carry a specific reason.

If your follow-up cadence still assumes a 14-day window, you are leaving a week on the table on every standard request. And if a payer denial arrives without a specific reason, that is now a compliance gap on their side worth naming in writing.

AI in Practice

BB and BC are a clean illustration of why coding accuracy and coding completeness are different problems.

Your coders can assign a perfectly accurate code set and still omit a modifier that depends on a contract term nobody put in the chart. No amount of coder training fixes a missing input.

What fixes it is routing. When a chart arrives without the information a rule requires, the correct answer is a query or a hold, not a guess. CODIO AI holds thin or contradictory documentation in CoPilot for a certified coder rather than auto-coding on bad input, and Provider Query Dispatch sends the question and tracks the response against the chart it belongs to.

One Thing to Try

Before December, ask your operations lead for a list of every telehealth arrangement you bill under: direct, platform-contracted, incident-to. Map each to a modifier. You will likely find at least one arrangement nobody can classify, and finding it in November beats finding it in an audit.

See how MediCodio AI works

See how a chart gets routed when the documentation falls short.

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