MS‑DRG 233: Coronary Bypass with Cardiac Catheterization or Open Ablation with MCC

What Medicare paid hospitals for MS‑DRG 233 in 2024: nationally, state by state and across hospitals.

Paid per case$57,5063.8× the all-DRG average

Discharges6,5940.13% of all Medicare discharges

Total paid$379.2M51st largest MS‑DRG by spending

Hospitals341in 47 states and DC

Charges ÷ paid6.6×$380,582 average charge

Relative weight8.0100FY2027, 11.2-day geometric mean stay; FY2026 7.6452 (+4.8%)

In 2024 Medicare paid hospitals an average of $57,506 per discharge for MS‑DRG 233, across 6,594 fee-for-service discharges at 341 hospitals: 0.13% of all Medicare inpatient discharges and $379.2M in total, the 51st largest MS‑DRG by Medicare spending.

By state, the average ran from $42,016 in New Mexico to $84,800 in California. Across hospitals, half were paid between $47,367 and $65,564 per case, and the median hospital $54,352; the payment moves with each hospital’s wage index, teaching and low-income share, and with outlier cases.

Hospitals charged $380,582 on average for these stays, 6.6 times what Medicare paid: charges are list prices, while Medicare pays a fixed amount per MS‑DRG.

See MS‑DRG 233 on the interactive map Price an MS‑DRG 233 claim at any hospital Every MS‑DRG

What changed in FY2027

The rates for discharges from October 1, 2026 (MS‑DRG version 44) against FY2026.

MS‑DRG 233, FY2026 and FY2027
	FY2026	FY2027	Change
Relative weight	7.6452	8.0100	+4.8%
Geometric mean stay (days)	11.0	11.2	+0.2
Average stay (days)	12.3	12.4	+0.1

Not capped: the +4.8% is CMS’s yearly recalibration of every weight from recent claims and cost data.
Name, MDC and transfer status are unchanged.

FY2027 national base payment (illustration)

$59,177.48

The FY2027 weight times the operating standardized amount and the capital rate ($6,848.00 + $539.95) at a wage index of 1.0. No IME, DSH, outlier or other hospital-specific adjustment, so it is not what any hospital is paid; price it at a hospital for that.

FY2027 national base payment across the severity levels of MS‑DRG 233
MS‑DRG	Severity	Payment ($)	Step ($)
233	with MCC	59,177.48	—
234	without MCC	40,638.16	−18,539.32

FY2027 inpatient rates: what else changed on October 1 · Price MS‑DRG 233 at a hospital

Paid per case, by state

MS‑DRG 233 by state, 2024
State	Paid per case	Discharges	Hospitals	Charges ÷ paid
California	$84,800	424	25	7.9×
Maryland*	$82,055	57	4	1.2×
Alaska	$74,892	18	1	6.6×
Massachusetts	$73,265	258	9	3.3×
New York	$70,141	368	16	5.3×
Connecticut	$69,917	55	3	3.4×
District of Columbia	$69,349	36	1	4.2×
Oregon	$68,409	75	4	3.9×
Delaware	$68,387	43	1	3.5×
Idaho	$68,192	26	1	4.1×
New Jersey	$65,436	153	7	6.6×
Minnesota	$64,241	134	7	3.9×
Pennsylvania	$62,652	220	12	7.0×
South Dakota	$60,895	43	3	4.6×
Illinois	$59,149	273	15	5.8×
Washington	$57,543	85	5	6.1×
Michigan	$56,887	144	9	3.9×
Arizona	$56,750	109	7	8.5×
Nevada	$56,684	74	5	14.8×
Maine	$56,616	44	2	4.5×
Wisconsin	$56,118	112	6	4.8×
Montana	$55,498	60	4	3.2×
Georgia	$54,749	103	5	6.8×
North Dakota	$54,480	22	2	3.9×
North Carolina	$53,876	238	13	4.8×
New Hampshire	$53,765	38	2	6.5×
West Virginia	$53,575	80	4	5.3×
Nebraska	$52,826	110	5	4.2×
Utah	$52,670	26	2	4.5×
Indiana	$52,273	121	6	6.2×
Iowa	$52,069	100	4	4.7×
Virginia	$52,065	209	8	9.4×
South Carolina	$51,735	129	8	8.1×
Kansas	$51,534	126	5	7.7×
Texas	$51,247	634	36	9.0×
Missouri	$50,464	59	4	5.2×
Colorado	$50,380	40	3	10.0×
Tennessee	$49,824	231	11	6.2×
Ohio	$49,254	297	10	6.4×
Vermont	$48,932	12	1	4.3×
Louisiana	$48,020	66	4	7.1×
Florida	$47,794	601	32	11.0×
Kentucky	$47,691	106	6	5.8×
Oklahoma	$46,051	118	4	5.9×
Mississippi	$45,703	70	5	4.3×
Alabama	$45,053	140	8	7.3×
Arkansas	$44,678	88	5	4.2×
New Mexico	$42,016	19	1	4.8×
United States	$57,506	6,594	341	6.6×

* Maryland hospitals are paid under the state’s all-payer model, not the IPPS, so Maryland is left out of the state range above.

How much hospitals vary

Each hospital’s own average Medicare payment for MS‑DRG 233.

10th percentile	$43,266
25th percentile	$47,367
Median hospital	$54,352
75th percentile	$65,564
90th percentile	$77,601

Related analysis

Transfers and the per-diem rule: when a short stay pays less than the full DRG · Inpatient DRG
DRG validation and the single-MCC claim: when one code moves the payment · Payment integrity

The same condition at other severities

Nearby MS‑DRG numbers

Questions

What did Medicare pay for MS‑DRG 233 in 2024?

An average of $57,506 per discharge across 6,594 fee-for-service discharges at 341 hospitals, $379.2M in total.

Which state paid the most for MS‑DRG 233?

California, at $84,800 per case; New Mexico paid the least, $42,016.

Where do these figures come from?

From the Medicare Inpatient Hospitals - by Provider and Service (data year 2024): the published hospital-by-DRG averages of Medicare fee-for-service inpatient discharges in 2024. Cells with fewer than 11 discharges are not published, so a hospital with a handful of cases is not counted. Average Medicare payment excludes the patient’s deductible and coinsurance.