CPT code 99284: Emergency department visit, moderate medical decision making2026 Medicare rate & RVUs in Connecticut

Report a level 4 emergency department visit when at least two medical decision-making elements support moderate complexity, regardless of whether the patient is new or established.

CMS RVU26DEffective Oct 1, 2026One payment locality4.5M Medicare services in 2024

In Connecticut, Medicare pays $123.68 for 99284 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$123.68Hospital or facility

Check a contract rate as a % of Medicare · 99284 nationwide

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

We’ll open 99284 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Connecticut
  2. What 99284 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 99284 covers

In a hospital emergency department, a physician or other qualified health care professional evaluates an acute illness with systemic symptoms, an acute complicated injury, or a chronic illness with exacerbation when the overall medical decision making (MDM) is moderate. Emergency physicians commonly furnish this care, but another physician or qualified professional evaluating the patient in the ED may report an ED visit. The code is the same whether the patient is new or established. A presenting complaint, tests ordered, or discharge alone cannot establish the level.

Select the level by MDM, not time: at least two of the three elements—problems, data, and risk—must meet moderate criteria. Document the problems addressed, qualifying data, treatment decisions such as prescription drug management, and disposition reasoning. Do not count a separately billed ECG interpretation as independent interpretation for MDM data. Report a significant, separately identifiable ED evaluation with modifier 25 when a minor procedure, such as simple laceration repair, is also billed. If the same physician provides ED care and initial inpatient or observation care that date, report the initial hospital care instead of a separate ED visit.

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.

How Connecticut compares for 99284

Across 109 of 109 payment localities, the facility rate for 99284 runs from $109.52 in Wisconsin to $159.73 in Alaska. Connecticut pays $123.68. The RVUs are the same everywhere; the geographic indexes change the dollars.

99284 in Connecticut vs other payment areas
  1. Connecticut · this page$123.68
  2. Los Angeles, CA · California$120.81−$2.87
  3. Washington, DC area · District of Columbia$127.18+$3.50
  4. Miami, FL · Florida$136.73+$13.05
  5. Chicago, IL · Illinois$134.09+$10.41
  6. Manhattan, NY · New York$133.38+$9.70
  7. Alaska · Alaska$159.73+$36.05

Other areas in Connecticut first, then benchmark localities. Bars start at $0.

Every other payment area

99284 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama—$111.29
ArkansasArkansas—$110.45
ArizonaArizona—$116.09
Bakersfield, CACalifornia—$116.85
Chico, CACalifornia—$115.81
El Centro, CACalifornia—$115.87
Fresno, CACalifornia—$115.81
Hanford, CACalifornia—$115.81

99284 rates by state

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

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Local rates. Clear comparisons.

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

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99284 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

See 99284 in every payment locality

How the 99284 rate is calculated

Each of 99284’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 · 99284

RVUs × geographic indexes × conversion factor

Office or facility?

Work2.74

2.74 RVUs× 1.000 GPCI

Practice expense0.45

0.45 RVUs× 1.000 GPCI

Malpractice0.35

0.35 RVUs× 1.000 GPCI

Adjusted RVUs

3.5400

Conversion factor

$33.4009

Medicare rate

$118.24

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

The exact Connecticut inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

13,040

Code
99284
Physician work
2.74
Practice expense
0.45
Malpractice
0.35

GPCI2026.csv

38

Locality
Connecticut
Physician work
1.020
Practice expense
1.077
Malpractice
1.210
Facility calculation for 99284 in Connecticut
ComponentRVULocality factorAdjusted
Physician work2.74× 1.0202.7948
Practice expense0.45× 1.0770.4846
Malpractice0.35× 1.2100.4235
Total RVUs3.7030
Conversion factor× 33.4009

Facility rate, Connecticut$123.68

Facility: (2.74 × 1.02 + 0.45 × 1.077 + 0.35 × 1.21) × $33.4009 = $123.68

Open 99284 in the RVU calculator

Payment rules and modifiers for 99284

99284 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 · 99284

Which rate does Medicare pay?

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

POS 11 · non-facility rate · national

—

99284 isn’t priced in this setting.

How 99284 has changed in Connecticut

99284 · Office / nonfacility

Rate unavailable

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release
Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01Not available in this setting$123.68RVU26D
2026-07-01Not available in this setting$123.68RVU26C
2026-04-01Not available in this setting$123.68RVU26B
2026-01-01Not available in this setting$123.68RVU26A
2025-10-01Not available in this setting$122.02RVU25D
2025-07-01Not available in this setting$122.02RVU25C
2025-04-01Not available in this setting$122.02RVU25B
2025-01-01Not available in this setting$122.02RVU25A
2024-10-01Not available in this setting$125.20RVU24D
2024-07-01Not available in this setting$125.20RVU24C
2024-04-01Not available in this setting$125.20RVU24B
2024-03-09Not available in this setting$125.20RVU24AR
2024-01-01Not available in this setting$123.16RVU24A
2023-10-01Not available in this setting$126.71RVU23D
2023-07-01Not available in this setting$126.71RVU23C
2023-04-01Not available in this setting$126.71RVU23B
2023-01-01Not available in this setting$126.71RVU23A
2022-10-01Not available in this setting$128.20RVU22D
2022-07-01Not available in this setting$128.20RVU22C
2022-04-01Not available in this setting$128.20RVU22B
2022-01-01Not available in this setting$128.20RVU22A
2021-10-01Not available in this setting$128.93RVU21D
2021-07-01Not available in this setting$128.93RVU21C
2021-04-01Not available in this setting$128.93RVU21B
2021-01-01Not available in this setting$128.93RVU21A
2020-10-01Not available in this setting$127.70RVU20D
2020-07-01Not available in this setting$127.70RVU20C
2020-04-01Not available in this setting$127.70RVU20B
2020-01-01Not available in this setting$127.70RVU20A
2019-10-01Not available in this setting$125.84RVU19D
2019-07-01Not available in this setting$125.84RVU19C
2019-04-01Not available in this setting$125.84RVU19B
2019-01-01Not available in this setting$125.84RVU19A
2018-10-01Not available in this setting$125.70RVU18D
2018-07-01Not available in this setting$125.70RVU18C
2018-04-01Not available in this setting$125.70RVU18B
2018-01-01Not available in this setting$125.70RVU18AR1
2017-10-01Not available in this setting$125.50RVU17D
2017-07-01Not available in this setting$125.50RVU17C
2017-04-01Not available in this setting$125.50RVU17B
2017-01-01Not available in this setting$125.50RVU17A
2016-10-01Not available in this setting$125.28RVU16D
2016-07-01Not available in this setting$125.28RVU16C
2016-04-01Not available in this setting$125.28RVU16B
2016-01-01Not available in this setting$125.28RVU16A
2015-10-01Not available in this setting$126.17RVU15D
2015-07-01Not available in this setting$126.17RVU15C
2015-04-01Not available in this setting$125.54RVU15B
2015-01-01Not available in this setting$125.54RVU15A
2014-10-01Not available in this setting$124.38RVU14D
2014-07-01Not available in this setting$124.38RVU14C
2014-04-01Not available in this setting$124.38RVU14B
2014-01-01Not available in this setting$124.38RVU14A
2013-10-01Not available in this setting$120.71RVU13D
2013-07-01Not available in this setting$120.71RVU13C
2013-04-01Not available in this setting$120.71RVU13B
2013-01-01Not available in this setting$120.71RVU13AR

Price 99284 for an earlier date of service

Where the Connecticut rate applies

Connecticut is a Medicare payment area, not a city. Our Census mapping connects it to 215 cities and communities in Connecticut. Some span more than one payment area; confirm with the service ZIP.

  • Ansonia
  • Ball Pond
  • Baltic
  • Bantam
  • Bethel
  • Bethlehem Village
  • Bigelow Corners
  • Blue Hills

Browse all communities in Connecticut

99284 billing questions

Can time be used to support 99284?

No. Emergency department visit levels are selected by medical decision making, so time spent does not determine the level.

What separates 99284 from 99285?

99284 requires moderate MDM; 99285 requires high MDM. At least two of the three MDM elements must support the selected level.

Does the ED visit need modifier 25 when a procedure is also performed?

Append modifier 25 to 99284 when the ED evaluation is significant and separately identifiable from the usual work of a minor procedure, such as a laceration repair. Report the procedure with its own code.

Can 99284 be billed if the same physician admits the patient to observation or inpatient status?

When the same physician provides ED evaluation and initial inpatient or observation care on the same date, include the ED work in the initial hospital care service rather than separately reporting 99284.

Does prescribing medication alone qualify for moderate risk?

Documented prescription drug management supports moderate risk, one of the three MDM elements. A second element—problems or data—must also meet moderate criteria for 99284.

Can a non-emergency physician report 99284?

Yes. A physician or qualified health care professional evaluating a patient in the emergency department may report an ED visit even if emergency medicine is not their specialty.

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

Show the CMS file lines behind this rate
RVUs for 99284PPRRVU2026_Oct_nonQPP.csv, line 13,040 (RVU26D)
Geographic factors for ConnecticutGPCI2026.csv, line 38 (RVU26D)

Open CMS sourceHow we calculate rates

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