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Billing Codes · 2026

What is interprofessional consultation billing?

Interprofessional consultation codes pay for practitioner-to-practitioner advice — a treating clinician consults a specialist by phone or record review, the patient never has to travel, and BOTH sides can be paid for their time. In 2026 the treating-side tiers run from about $19.04 (5–10 minutes) to $76.15 (31+ minutes), with a parallel G-code lane (G0546–G0551) for behavioral-health clinicians. The consent duty sits with the requesting practitioner. Rates shown are CY2026 national figures from the CMS relative value file.

Last reviewed July 23, 2026 · Rates last verified August 19, 2026 · Estimates, not billing advice.

The rates

What does Interprofessional Consultations pay in 2026?

CodeWhat it coversCY2026 national non-facility
99446consult with verbal + written report, 5–10 min$19.04
99447consult with verbal + written report, 11–20 min$38.08
99448consult with verbal + written report, 21–30 min$56.78
99449consult with verbal + written report, 31+ min$76.15
99451consult, written report only, 5+ min$35.40
99452requesting/referring practitioner's time, 30 min$37.07
G0546BH-clinician consult, 5–10 min$19.04
G0547BH-clinician consult, 11–20 min$37.74
G0548BH-clinician consult, 21–30 min$56.78
G0549BH-clinician consult, 31+ min$76.49
G0550BH-clinician consult, written report, 5+ min$35.07
G0551BH-clinician referral, 30 min$36.74

National averages from our verified CY2026 fee-schedule config (source: CMS Physician Fee Schedule). Actual payment varies by locality, payer, and site of service.

The billers

Who can bill it?

The consulted specialist bills the time-tiered codes; the requesting practitioner bills 99452 (or G0551) for their side. The G-code lane (G0546–G0551, CY2025) lets behavioral-health clinicians — psychologists, LCSWs, counselors, MFTs — bill consultations directly.

This is practitioner time on both sides — no delegated staff minutes.

Event-based: each consultation episode bills once per side, tied to its documentation and time tier.

The thresholds

How do the time tiers work?

  • The consultant's code follows the time spent: 5–10, 11–20, 21–30, or 31+ minutes of review and discussion.
  • 99451/G0550 covers written-report-only consults of 5+ minutes; 99446–99449 require verbal and written reports.
  • The requesting practitioner's own coordination time bills 99452/G0551 — 30 minutes of preparing and acting on the consult.
  • Time tiers are per consultation episode, not per month.
Before you bill

What has to be in place first?

Patient consent, obtained by the REQUESTING practitioner
CMS places the verbal-consent duty — including disclosure of cost-sharing — on the treating practitioner who requests the consult. The consulting side carries no consent duty and shouldn't be gated on one.
Real documentation on both sides
The consultant's report (verbal and/or written per the code) and the requester's record of the request and its use.
The right lane for the clinician
E/M-eligible practitioners use 99446–99452; behavioral-health clinicians use the G0546–G0551 crosswalks.
The denial traps

What gets claims denied?

Consent documented on the wrong side
The requesting practitioner documents the patient's verbal consent before billing. A consultant's claim doesn't need it — but a requester's claim without it isn't payable.
Unverified facility rates
Every consult code's facility-setting value now comes straight from the CMS national relative value file (RVU26C) — facility payment runs meaningfully below the office rate for these codes, so a facility-based service must be priced on the facility value, not the office one.
Assuming code parity
99451 and G0550 are NOT valued identically, and neither are the other apparent pairs — each code derives from its own published RVU. Bill the code for the clinician and work, not the 'equivalent'.
Medicare-first G-codes on commercial payers
The G0546–G0551 lane (CY2025) may not be loaded by commercial payers yet — CO-181-class denials until adoption.
The math

What could this look like for your panel?

Estimated monthly reimbursement (6 consults)

$114.24

Want plan costs, add-on mixes, and the other 2026 programs? Run the full calculator.

Estimates only, not billing advice. Actual Medicare reimbursement varies by region, payer, and year. Figures approximate CY2026 national non-facility averages from our verified fee-schedule config.

Common questions

Frequently asked questions

Who gets the patient's consent for an interprofessional consult?
The requesting (treating) practitioner — verbal consent, documented, including that cost-sharing may apply. CMS deliberately did not put this duty on the consulting side.
Can a psychologist or LCSW bill for giving a consult?
Yes — the CY2025 G-code lane (G0546–G0551) crosswalks the consultation codes to behavioral-health clinicians, who bill them directly.
Does the patient need to be present?
No — the entire point is practitioner-to-practitioner advice without moving the patient. It is not a telehealth service; it's a consultation service.
What would an 'unverified estimate' flag mean?
Our fee schedule flags any figure not confirmed against a CMS primary source and refuses to export a claim priced from one. As of the August 2026 verification pass every published rate here is confirmed against the CMS relative value file, so no code currently carries the flag — but the mechanism stays armed for future code changes.

This page is general information, not billing, coding, or legal advice. Verify current requirements with the relevant payer before billing. Mallowa helps practices capture and document coordination time and generates claim-ready superbills; it does not submit claims or determine eligibility.