Mount Auburn Hospital Medicare inpatient and outpatient services
Every DRG and outpatient service group CMS publishes for Mount Auburn Hospital, Cambridge, MA in 2024, from traditional Medicare claims. Back to the Mount Auburn Hospital profile, with quality ratings, finances and negotiated rates.
1,948
Medicare inpatient discharges
In 63 published DRGs
1.66
Case mix index
IPPS FY 2027
13%
Surgical stays
73%
Stays with complications
In DRGs with a CC or MCC
2,394
Medicare outpatient services
In 32 service groups
Inpatient stays by major diagnostic category
Circulatory system431 discharges in 13 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Heart failure and shock with MCCMS-DRG 291, medical | 124 | $23,642 | $11,586 | $13,263 | 1.28 |
| Acute myocardial infarction, discharged alive with MCCMS-DRG 280, medical | 99 | $27,034 | $14,825 | $15,166 | 1.59 |
| Percutaneous cardiovascular procedures with intraluminal device without MCCMS-DRG 322, surgical | 28 | $54,089 | $16,935 | $30,344 | 1.82 |
| Syncope and collapseMS-DRG 312, medical | 27 | $23,821 | $8,819 | $13,364 | 0.86 |
| Endovascular cardiac valve replacement and supplement procedures without MCCMS-DRG 267, surgical | 24 | $111,020 | $47,837 | $62,282 | 4.88 |
| Cardiac arrhythmia and conduction disorders with CCMS-DRG 309, medical | 22 | $13,652 | $6,260 | $7,659 | 0.74 |
| Acute myocardial infarction, discharged alive with CCMS-DRG 281, medical | 19 | $18,578 | $7,939 | $10,422 | 0.91 |
| Circulatory disorders except AMI, with cardiac catheterization without MCCMS-DRG 287, medical | 17 | $21,671 | $9,362 | $12,157 | 1.08 |
| Cardiac arrhythmia and conduction disorders with MCCMS-DRG 308, medical | 16 | $22,544 | $10,738 | $12,647 | 1.20 |
| Percutaneous cardiovascular procedures with intraluminal device with MCC or 4+ arteries/MS-DRG 321, surgical | 16 | $82,042 | $29,415 | $46,025 | 2.87 |
| Coronary bypass with cardiac catheterization or open ablation without MCCMS-DRG 234, surgical | 14 | $82,998 | $49,252 | $46,562 | 5.20 |
| Circulatory disorders except AMI, with cardiac catheterization with MCCMS-DRG 286, medical | 13 | $33,667 | $20,460 | $18,887 | 2.16 |
| Coronary bypass without cardiac catheterization without MCCMS-DRG 236, surgical | 12 | $56,886 | $37,097 | $31,913 | 4.04 |
Respiratory system308 discharges in 9 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Respiratory infections and inflammations with MCCMS-DRG 177, medical | 93 | $23,765 | $14,843 | $13,332 | 1.70 |
| Simple pneumonia and pleurisy with MCCMS-DRG 193, medical | 79 | $20,704 | $11,548 | $11,615 | 1.33 |
| Chronic obstructive pulmonary disease with MCCMS-DRG 190, medical | 38 | $22,710 | $9,860 | $12,740 | 1.10 |
| Respiratory infections and inflammations with CCMS-DRG 178, medical | 26 | $17,171 | $8,530 | $9,633 | 0.99 |
| Simple pneumonia and pleurisy with CCMS-DRG 194, medical | 17 | $20,693 | $7,098 | $11,609 | 0.82 |
| Pulmonary edema and respiratory failureMS-DRG 189, medical | 16 | $25,173 | $11,414 | $14,122 | 1.23 |
| Pulmonary embolism with MCC or acute cor pulmonaleMS-DRG 175, medical | 14 | $33,699 | $13,632 | $18,905 | 1.40 |
| Bronchitis and asthma with cc/mccMS-DRG 202, medical | 14 | $18,638 | $8,190 | $10,456 | 0.96 |
| Chronic obstructive pulmonary disease with CCMS-DRG 191, medical | 11 | $11,857 | $6,915 | $6,652 | 0.85 |
Infectious and parasitic diseases297 discharges in 4 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Septicemia or severe sepsis without MV >96 hours with MCCMS-DRG 871, medical | 243 | $33,071 | $18,349 | $18,553 | 1.98 |
| Septicemia or severe sepsis without MV >96 hours without MCCMS-DRG 872, medical | 23 | $18,941 | $9,184 | $10,626 | 1.03 |
| Infectious and parasitic diseases with o.r. procedures with MCCMS-DRG 853, surgical | 19 | $71,201 | $52,203 | $39,944 | 5.00 |
| Septicemia or severe sepsis with MV >96 hoursMS-DRG 870, medical | 12 | $98,621 | $63,394 | $55,326 | 6.96 |
Digestive system232 discharges in 8 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Gastrointestinal hemorrhage with CCMS-DRG 378, medical | 56 | $24,099 | $8,634 | $13,520 | 0.98 |
| Esophagitis, gastroenteritis and miscellaneous digestive disorders without MCCMS-DRG 392, medical | 56 | $16,085 | $6,642 | $9,024 | 0.79 |
| Gastrointestinal hemorrhage with MCCMS-DRG 377, medical | 30 | $32,674 | $16,434 | $18,330 | 1.79 |
| Esophagitis, gastroenteritis and miscellaneous digestive disorders with MCCMS-DRG 391, medical | 23 | $20,617 | $11,806 | $11,566 | 1.28 |
| Major small and large bowel procedures with CCMS-DRG 330, surgical | 20 | $34,082 | $21,999 | $19,120 | 2.37 |
| Gastrointestinal obstruction with CCMS-DRG 389, medical | 18 | $14,784 | $7,099 | $8,294 | 0.80 |
| Other digestive system diagnoses with CCMS-DRG 394, medical | 17 | $13,573 | $7,918 | $7,614 | 0.94 |
| Major small and large bowel procedures with MCCMS-DRG 329, surgical | 12 | $56,345 | $38,994 | $31,610 | 4.52 |
Kidney and urinary tract207 discharges in 6 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Kidney and urinary tract infections with MCCMS-DRG 689, medical | 55 | $20,141 | $9,768 | $11,299 | 1.17 |
| Renal failure with MCCMS-DRG 682, medical | 40 | $23,735 | $12,925 | $13,315 | 1.50 |
| Other kidney and urinary tract diagnoses with MCCMS-DRG 698, medical | 37 | $26,981 | $15,186 | $15,137 | 1.65 |
| Kidney and urinary tract infections without MCCMS-DRG 690, medical | 32 | $16,163 | $7,020 | $9,068 | 0.81 |
| Renal failure with CCMS-DRG 683, medical | 27 | $16,725 | $7,719 | $9,383 | 0.90 |
| Other kidney and urinary tract diagnoses with CCMS-DRG 699, medical | 16 | $13,473 | $9,214 | $7,559 | 1.02 |
Musculoskeletal system and connective tissue159 discharges in 8 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Major hip and knee joint replacement or reattachment of lower extremity without MCCMS-DRG 470, surgical | 45 | $26,689 | $17,368 | $14,973 | 1.88 |
| Hip and femur procedures except major joint with CCMS-DRG 481, surgical | 27 | $33,177 | $19,589 | $18,612 | 2.07 |
| Medical back problems without MCCMS-DRG 552, medical | 19 | $20,548 | $8,593 | $11,528 | 0.97 |
| Fracture, sprain, strain and dislocation except femur, hip, pelvis and thigh without MCCMS-DRG 563, medical | 17 | $16,936 | $7,938 | $9,501 | 0.90 |
| Hip replacement with principal diagnosis of hip fracture without MCCMS-DRG 522, surgical | 14 | $29,464 | $19,627 | $16,529 | 2.11 |
| Fractures of hip and pelvis without MCCMS-DRG 536, medical | 13 | $15,095 | $6,811 | $8,468 | 0.79 |
| Pathological fractures and musculoskeletal and connective tissue malignancy with CCMS-DRG 543, medical | 13 | $17,400 | $9,834 | $9,761 | 1.09 |
| Hip and femur procedures except major joint with MCCMS-DRG 480, surgical | 11 | $45,859 | $26,914 | $25,727 | 2.95 |
Endocrine, nutritional and metabolic140 discharges in 6 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes without MCCMS-DRG 641, medical | 51 | $16,696 | $6,946 | $9,367 | 0.78 |
| Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes with MCCMS-DRG 640, medical | 26 | $25,721 | $12,652 | $14,429 | 1.32 |
| Diabetes with MCCMS-DRG 637, medical | 17 | $24,912 | $13,420 | $13,976 | 1.45 |
| Endocrine disorders with MCCMS-DRG 643, medical | 16 | $31,319 | $15,434 | $17,570 | 1.65 |
| Endocrine disorders with CCMS-DRG 644, medical | 16 | $14,157 | $9,343 | $7,942 | 1.06 |
| Diabetes with CCMS-DRG 638, medical | 14 | $14,092 | $7,520 | $7,906 | 0.90 |
Nervous system80 discharges in 4 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Intracranial hemorrhage or cerebral infarction with CC or tpa in 24 hoursMS-DRG 065, medical | 28 | $20,385 | $8,443 | $11,436 | 1.02 |
| Intracranial hemorrhage or cerebral infarction with MCCMS-DRG 064, medical | 21 | $25,654 | $15,604 | $14,392 | 2.00 |
| Degenerative nervous system disorders without MCCMS-DRG 057, medical | 17 | $18,714 | $11,422 | $10,499 | 1.36 |
| Seizures without MCCMS-DRG 101, medical | 14 | $20,634 | $7,976 | $11,575 | 0.91 |
Skin, subcutaneous tissue and breast28 discharges in 1 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Cellulitis without MCCMS-DRG 603, medical | 28 | $16,748 | $7,586 | $9,396 | 0.88 |
Blood and immune system22 discharges in 1 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Red blood cell disorders without MCCMS-DRG 812, medical | 22 | $22,100 | $8,094 | $12,398 | 0.90 |
Alcohol and drug use20 discharges in 1 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Alcohol, drug abuse or dependence without rehabilitation therapy without MCCMS-DRG 897, medical | 20 | $19,155 | $7,261 | $10,746 | 0.86 |
Other13 discharges in 1 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| Extensive o.r. procedures unrelated to principal diagnosis with MCCMS-DRG 981, surgical | 13 | $76,453 | $46,168 | $42,890 | 4.74 |
Ear, nose, mouth and throat11 discharges in 1 DRGs
| Condition or procedure | Discharges | Average charges | Average Medicare payment | Estimated cost | DRG weight |
|---|---|---|---|---|---|
| DysequilibriumMS-DRG 149, medical | 11 | $14,576 | $6,163 | $8,177 | 0.74 |
Source: CMS Medicare Inpatient Hospitals by Provider and Service (2024 data, released 2026-04-10), traditional Medicare only; CMS omits DRGs with fewer than 11 discharges. Estimated cost is average charges times the hospital's Medicare cost-to-charge ratio from the IPPS Impact File. Weights are the MS-DRG relative weights for the same year.
Outpatient services
| Service group | Services | Patients | Average charges | Average Medicare payment | US average payment |
|---|---|---|---|---|---|
| Comprehensive Observation ServicesAPC 8011 | 516 | 421 | $8,177 | $2,328 | $2,090 |
| Level 2 Excision/ Biopsy/ Incision and DrainageAPC 5072 | 236 | 215 | $6,621 | $1,377 | $1,220 |
| Level 1 Endovascular ProceduresAPC 5191 | 159 | 159 | $8,723 | $2,485 | $2,208 |
| Level 2 Upper GI ProceduresAPC 5302 | 107 | 89 | $6,684 | $1,607 | $1,445 |
| Level 3 Urology and Related ServicesAPC 5373 | 103 | 74 | $5,420 | $1,743 | $1,516 |
| Level 4 Musculoskeletal ProceduresAPC 5114 | 99 | 97 | $8,560 | $6,059 | $5,339 |
| Level 3 Musculoskeletal ProceduresAPC 5113 | 90 | 89 | $4,947 | $2,746 | $2,373 |
| Level 1 Nerve ProceduresAPC 5431 | 81 | 71 | $3,158 | $1,652 | $1,407 |
| Level 1 Laparoscopy and Related ServicesAPC 5361 | 71 | 70 | $9,230 | $4,899 | $4,358 |
| Level 3 Electrophysiologic ProceduresAPC 5213 | 70 | 70 | $68,039 | $23,804 | $21,117 |
| Level 5 Musculoskeletal ProceduresAPC 5115 | 64 | 62 | $18,235 | $12,282 | $10,772 |
| Level 2 Laparoscopy and Related ServicesAPC 5362 | 60 | 59 | $13,713 | $9,411 | $8,164 |
| Level 1 Breast/Lymphatic Surgery and Related ProceduresAPC 5091 | 55 | 53 | $12,037 | $3,262 | $2,930 |
| Level 2 Musculoskeletal ProceduresAPC 5112 | 51 | 51 | $4,788 | $1,343 | $1,196 |
| Level 3 Vascular ProceduresAPC 5183 | 51 | 48 | $14,493 | $2,727 | $2,405 |
| Level 4 Gynecologic ProceduresAPC 5414 | 48 | 47 | $4,545 | $2,590 | $2,389 |
| Level 1 Abdominal/Peritoneal/Biliary and Related ProceduresAPC 5341 | 47 | 42 | $6,232 | $2,956 | $2,636 |
| Level 1 Intraocular ProceduresAPC 5491 | 47 | 35 | $4,572 | $1,906 | $1,752 |
| Level 3 Endovascular ProceduresAPC 5193 | 46 | 44 | $42,481 | $10,162 | $8,874 |
| Level 5 Gynecologic ProceduresAPC 5415 | 42 | 42 | $7,160 | $4,255 | $3,792 |
| Level 3 Lower GI ProceduresAPC 5313 | 41 | 41 | $8,640 | $2,476 | $2,176 |
| Level 4 Urology and Related ServicesAPC 5374 | 41 | 37 | $6,265 | $2,901 | $2,629 |
| Level 6 Musculoskeletal ProceduresAPC 5116 | 40 | 38 | $31,690 | $18,334 | $15,763 |
| Level 5 Urology and Related ServicesAPC 5375 | 40 | 38 | $11,043 | $4,362 | $3,918 |
| Level 2 Pacemaker and Similar ProceduresAPC 5222 | 33 | 33 | $22,739 | $7,484 | $6,514 |
| Level 3 Excision/ Biopsy/ Incision and DrainageAPC 5073 | 31 | 31 | $6,928 | $2,425 | $2,141 |
| Level 2 Breast/Lymphatic Surgery and Related ProceduresAPC 5092 | 26 | 25 | $15,414 | $5,580 | $4,982 |
| Level 3 Pacemaker and Similar ProceduresAPC 5223 | 26 | 26 | $22,365 | $9,822 | $8,569 |
| Level 2 Endovascular ProceduresAPC 5192 | 25 | 24 | $17,626 | $4,890 | $4,338 |
| Level 2 Vascular ProceduresAPC 5182 | 20 | 20 | $6,263 | $1,358 | $1,204 |
| Level 4 Airway EndoscopyAPC 5154 | 17 | 17 | $7,559 | $3,204 | $2,833 |
| Level 4 Neurostimulator and Related ProceduresAPC 5464 | 11 | 11 | $39,824 | $21,799 | $18,465 |
Source: CMS Medicare Outpatient Hospitals by Provider and Service (2024 data, released 2026-06-24), comprehensive APCs for traditional Medicare; CMS omits services with fewer than 11 claims. The US average weights every hospital by its services.