FeeBase
Log inGet started
Menu

HCPCS code J1100: Dexamethasone injection, per 1 mg2026 Medicare rate & RVUs

Identifies injectable dexamethasone sodium phosphate by 1 mg unit for a covered dose administered as drug therapy.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare rate · J1100

Dexamethasone injection, per 1 mg

Office or facility?

Work RVUs
0
Total RVUs
0.00
Global days
XXX

National rate · 2026

—

Not priced in the facility setting.

See every locality for J1100 →Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

Your location

Medicare pays by the payment locality where the service is performed.

On this page 10 sections
  1. Medicare rate
  2. What J1100 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What J1100 covers

J1100 identifies injectable dexamethasone sodium phosphate, a corticosteroid used for systemic treatment of inflammatory and allergic conditions. It is reported for the drug administered in settings such as an office, clinic, emergency department, or hospital. The code identifies the medication and its quantity, not the service of administering it; the administration service is represented separately when reportable.

CMS assigns J1100 physician fee schedule status E, excluding it from that schedule. When Medicare covers the drug, payment is made under another method. HCPCS classifies it as a Part B drug, generally priced from CMS quarterly ASP drug pricing files when covered. Special Medicare coverage instructions apply. Each unit represents 1 mg of dexamethasone sodium phosphate, so a 6 mg dose is 6 units.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

Where J1100 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

J1100 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailableUnavailable
AlaskaUnavailableUnavailable
ArizonaUnavailableUnavailable
ArkansasUnavailableUnavailable
Atlanta, GAUnavailableUnavailable
Austin, TXUnavailableUnavailable
Bakersfield, CAUnavailableUnavailable
Baltimore area, MDUnavailableUnavailable
Beaumont, TXUnavailableUnavailable
Brazoria, TXUnavailableUnavailable

J1100 rates by state

Office rate range in each state. Select a state to see its payment localities.

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
J1100 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the J1100 rate is calculated

Each of J1100’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

How the rate is built · J1100

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.00

0.00 RVUs× 1.000 GPCI

Practice expense0.00

0.00 RVUs× 1.000 GPCI

Malpractice0.00

0.00 RVUs× 1.000 GPCI

Adjusted RVUs

0.0000

Conversion factor

$33.4009

Medicare rate

$0.00

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

Payment rules and modifiers for J1100

J1100 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.

Place of service · J1100

Which rate does Medicare pay?

The POS code on the claim line (CMS-1500 box 24B).

POS 11 · non-facility rate · national

—

J1100 isn’t priced in this setting.

J1100 compared with similar codes

Compare codes · National

J1100 vs J8540 vs J3301: Medicare rates

Office or facility?

  • J1100

    Dexamethasone injection, per 1 mg0 wRVU

    Not priced

  • J8540

    Oral dexamethasone, per 0.25 mg0 wRVU

    Not priced

  • J3301

    Triamcinolone injection, per 10 mg0 wRVU

    Not priced

How to choose

J8540Oral dexamethasonePer 0.25 mg
J8540 identifies oral dexamethasone in 0.25 mg units. J1100 identifies injectable dexamethasone sodium phosphate in 1 mg units.
J3301Triamcinolone injectionPer 10 mg
J3301 identifies injectable triamcinolone acetonide in 10 mg units. J1100 identifies dexamethasone sodium phosphate in 1 mg units.

Codes related to J1100

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to J1100
CodeHow it relatesNational office range
Often billed with
96372SC/IM injection, therapeutic, prophylactic, or diagnosticAdministration code for an intramuscular or subcutaneous injection when that route and service apply.$13.88–$19.97
96374IV push, single or initial IV pushAdministration code for an intravenous push when that route and service apply.$33.04–$51.82

J1100 billing questions

How many units should be reported?

One unit represents 1 mg of dexamethasone sodium phosphate. A 6 mg dose is 6 units.

Does J1100 include injection administration?

J1100 identifies the drug, not the administration service. A separately reportable administration service is represented by its own code.

When should J1094 be used instead?

J1094 identifies the same drug in 0.1 mg units. J1100 represents 1 mg per unit.

Does J1100 specify an administration route?

No. J1100 identifies the drug and its 1 mg unit.

How does Medicare treat J1100?

CMS assigns physician fee schedule status E. When covered, the drug is a Part B drug generally priced from CMS quarterly ASP drug pricing files, and special Medicare coverage instructions apply.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates

Did this answer your question about what J1100 pays?

Tell us what you were actually trying to work out. We’ll answer you directly, or build the page that does.

Fee sheets · Coming soon

Put J1100 and the rest of your codes on one sheet

Your codes at your locality, with payer contracts beside Medicare.

Join the waitlist