HCPCS G0400
Home sleep test/type 4 porta
Contractor-priced — your Medicare Administrative Contractor sets the amount, not a national fee schedule.
No national payment amount in Q3 2019
Your Medicare Administrative Contractor prices this code case by case, usually after reviewing documentation.
Contractor amounts on file today
$82.94–$116.11
We hold no contractor-published amount for G0400 in Q3 2019. The figures above are what contractors publish now , across 63 of 119 payment localities on file — not what your contractor paid in Q3 2019.
Reading an old claim? Keep this page for Q3 2019 and open the current G0400 page for today’s.
Did Medicare pay separately for HCPCS G0400 in Q3 2019? Copy link
Not at a published national rate. HCPCS G0400 carries status C (carrier-priced) in the Q3 2019 release. Your Medicare Administrative Contractor prices this code case by case, usually after reviewing documentation. Treat the blank amount as unpriced, not as $0.
Source: Physician relative value file (Q3 2019) · effective July 2019 · materially updated Aug 4, 2026 · compact facts
Why isn't there a national PFS amount?
- Status C (Carrier-priced): Your Medicare Administrative Contractor prices this code case by case, usually after reviewing documentation.
- Carrier-priced: no national payment amount.
CMS evidence · 2 sources
Open evidence
Hide evidence
Common questions Copy link
Why is there no payment amount for G0400?
Its status indicator is C (carrier-priced). Your Medicare Administrative Contractor prices this code case by case, usually after reviewing documentation. The blank is deliberate: the amount is either unknown or paid under another provision, so reading it as $0 would be wrong.
Why would a Medicare claim for G0400 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
- G0400 splits into a professional component (modifier 26) and a technical component (modifier TC) — a claim for only one part needs that modifier to price correctly. 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.
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.
Sources: CMS Medicare Physician Fee Schedule Relative Value Files.
Applicable payment rules Copy link
Only the rules that can matter for G0400, each linking to its detail on this page.
Global period: what G0400's fee already covers Copy link
The global surgery concept does not apply to this code.
| Modifier | Reports |
|---|---|
| -25 | A significant, separately identifiable E/M on the same day as the procedure, beyond its usual pre- and post-operative care. |
A modifier reports what happened; it does not by itself make a service payable. Documentation has to support it.
Billing policy Copy link
What G0400's billing-policy indicators mean. These show for every code, priced or not: 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 payment reduction applies when this procedure is billed with other procedures on the same date — each is treated as unrelated. |
| Professional/technical split | 1 | Splits into professional and technical. This procedure splits into a professional component (modifier 26) and a technical component (modifier TC), each separately payable. |
Can you bill it with another code? 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 between it and G0400.
Did this answer your question about HCPCS G0400?
We're building this out in the open. Tell us what you were actually trying to work out and we'll either answer you directly or build the page that does.
Source & method
Show sources
Hide
This is computed from CMS's Medicare Physician Fee Schedule Q3 2019 release (schedule pfs, effective July 2019). National amounts apply a GPCI of 1.000 and leave sequestration off. The status indicator decides payability, never the RVU values, so a blank RVU stays blank. Releases are immutable: a rate retrieved for a past quarter always reflects that release. CMS owns the code description shown for HCPCS Level II codes. Our methodology covers the depth: sourcing, parsing, versioning, and how we cross-check claims before they ship.
Use the (i) buttons next to each amount above for the exact row, columns, and math.
Cite this rate
This link keeps pointing at the Q3 2019 figures, even after a newer release lands.
HCPCS G0400 Medicare Physician Fee Schedule rate (Q3 2019). Localis. https://localishealth.com/hcpcs/G0400/2019/C