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Mercy Hospital South Medicare inpatient and outpatient services

Every DRG and outpatient service group CMS publishes for Mercy Hospital South, Saint Louis, MO in 2024, from traditional Medicare claims. Back to the Mercy Hospital South profile, with quality ratings, finances and negotiated rates.

  • 5,389

    Medicare inpatient discharges

    In 138 published DRGs

  • 1.87

    Case mix index

    IPPS FY 2027

  • 18%

    Surgical stays

  • 69%

    Stays with complications

    In DRGs with a CC or MCC

  • 3,140

    Medicare outpatient services

    In 37 service groups

Inpatient stays by major diagnostic category

Circulatory system959 discharges in 25 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Heart failure and shock with MCCMS-DRG 291, medical266$36,376$8,050$10,4041.28
Cardiac arrhythmia and conduction disorders with CCMS-DRG 309, medical70$20,386$4,183$5,8310.74
Syncope and collapseMS-DRG 312, medical66$24,764$5,269$7,0830.86
Percutaneous and other intracardiac procedures without MCCMS-DRG 274, surgical60$76,238$20,523$21,8043.24
Acute myocardial infarction, discharged alive with MCCMS-DRG 280, medical48$43,573$9,935$12,4621.59
Cardiac arrhythmia and conduction disorders with MCCMS-DRG 308, medical47$29,197$6,828$8,3501.20
Percutaneous cardiovascular procedures with intraluminal device without MCCMS-DRG 322, surgical37$74,865$11,069$21,4111.82
Circulatory disorders except AMI, with cardiac catheterization without MCCMS-DRG 287, medical34$35,666$6,239$10,2011.08
Endovascular cardiac valve replacement and supplement procedures without MCCMS-DRG 267, surgical31$107,329$31,234$30,6964.88
Peripheral vascular disorders with MCCMS-DRG 299, medical30$33,994$10,015$9,7221.58
Percutaneous cardiovascular procedures with intraluminal device with MCC or 4+ arteries/MS-DRG 321, surgical29$106,552$17,340$30,4742.87
Other circulatory system diagnoses with MCCMS-DRG 314, medical24$41,348$12,612$11,8262.09
Hypertension without MCCMS-DRG 305, medical23$21,220$4,660$6,0690.75
Peripheral vascular disorders with CCMS-DRG 300, medical21$22,567$6,235$6,4541.07
Other major cardiovascular procedures with MCCMS-DRG 270, surgical20$116,785$33,030$33,4005.06
Other circulatory system diagnoses with CCMS-DRG 315, medical20$27,382$5,988$7,8310.97
Cardiac arrhythmia and conduction disorders without cc/mccMS-DRG 310, medical19$15,272$2,820$4,3680.55
Permanent cardiac pacemaker implant with MCCMS-DRG 242, surgical17$75,923$20,358$21,7143.46
Circulatory disorders except AMI, with cardiac catheterization with MCCMS-DRG 286, medical17$56,757$13,889$16,2322.16
Other vascular procedures with MCCMS-DRG 252, surgical16$85,309$22,020$24,3983.35
Permanent cardiac pacemaker implant with CCMS-DRG 243, surgical15$52,574$14,279$15,0362.28
Chest painMS-DRG 313, medical15$18,663$4,429$5,3380.72
Other vascular procedures with CCMS-DRG 253, surgical12$63,277$16,328$18,0972.55
Acute myocardial infarction, discharged alive with CCMS-DRG 281, medical11$31,330$4,789$8,9600.91
Hypertension with MCCMS-DRG 304, medical11$26,152$7,339$7,4791.15

Infectious and parasitic diseases743 discharges in 6 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Septicemia or severe sepsis without MV >96 hours with MCCMS-DRG 871, medical515$49,785$12,187$14,2381.98
Infectious and parasitic diseases with o.r. procedures with MCCMS-DRG 853, surgical98$104,336$30,156$29,8405.00
Septicemia or severe sepsis without MV >96 hours without MCCMS-DRG 872, medical80$28,542$6,069$8,1631.03
Infectious and parasitic diseases with o.r. procedures with CCMS-DRG 854, surgical26$46,661$11,643$13,3452.04
Septicemia or severe sepsis with MV >96 hoursMS-DRG 870, medical13$244,548$48,611$69,9416.96
Postoperative and post-traumatic infections with MCCMS-DRG 862, medical11$39,608$11,764$11,3281.84

Respiratory system624 discharges in 15 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Respiratory infections and inflammations with MCCMS-DRG 177, medical167$39,208$10,327$11,2131.70
Simple pneumonia and pleurisy with MCCMS-DRG 193, medical106$31,343$8,156$8,9641.33
Pulmonary edema and respiratory failureMS-DRG 189, medical92$30,431$7,656$8,7031.23
Respiratory infections and inflammations with CCMS-DRG 178, medical48$24,584$5,663$7,0310.99
Chronic obstructive pulmonary disease with MCCMS-DRG 190, medical27$31,374$6,492$8,9731.10
Bronchitis and asthma with cc/mccMS-DRG 202, medical27$23,275$6,036$6,6570.96
Respiratory system diagnosis with ventilator support <=96 hoursMS-DRG 208, medical26$78,854$17,000$22,5522.70
Simple pneumonia and pleurisy with CCMS-DRG 194, medical21$20,451$4,341$5,8490.82
Pulmonary embolism with MCC or acute cor pulmonaleMS-DRG 175, medical20$36,321$9,094$10,3881.40
Respiratory neoplasms with MCCMS-DRG 180, medical20$49,342$11,532$14,1121.74
Major chest trauma with CCMS-DRG 184, medical20$29,885$6,253$8,5471.05
Other respiratory system diagnoses with MCCMS-DRG 205, medical14$53,222$10,621$15,2221.81
Major chest procedures with MCCMS-DRG 163, surgical12$114,025$24,914$32,6114.71
Major chest trauma with MCCMS-DRG 183, medical12$34,013$9,880$9,7281.57
Chronic obstructive pulmonary disease with CCMS-DRG 191, medical12$29,658$4,564$8,4820.85

Musculoskeletal system and connective tissue580 discharges in 21 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Medical back problems without MCCMS-DRG 552, medical87$21,857$5,629$6,2510.97
Hip and femur procedures except major joint with CCMS-DRG 481, surgical60$38,378$12,714$10,9762.07
Hip replacement with principal diagnosis of hip fracture without MCCMS-DRG 522, surgical53$39,809$12,567$11,3852.11
Pathological fractures and musculoskeletal and connective tissue malignancy with CCMS-DRG 543, medical41$18,856$6,147$5,3931.09
Hip and femur procedures except major joint with MCCMS-DRG 480, surgical38$63,753$18,108$18,2332.95
Hip replacement with principal diagnosis of hip fracture with MCCMS-DRG 521, surgical37$67,683$18,281$19,3572.99
Fracture, sprain, strain and dislocation except femur, hip, pelvis and thigh without MCCMS-DRG 563, medical27$15,736$4,970$4,5000.90
Lower extremity and humerus procedures except hip, foot and femur with CCMS-DRG 493, surgical26$53,920$14,961$15,4212.40
Major hip and knee joint replacement or reattachment of lower extremity without MCCMS-DRG 470, surgical24$36,756$11,231$10,5121.88
Hip and femur procedures except major joint without cc/mccMS-DRG 482, surgical23$29,150$9,596$8,3371.59
Medical back problems with MCCMS-DRG 551, medical21$33,703$10,254$9,6391.70
Signs and symptoms of musculoskeletal system and connective tissue without MCCMS-DRG 556, medical19$17,958$4,822$5,1360.82
Revision of hip or knee replacement with CCMS-DRG 467, surgical18$72,605$19,885$20,7653.49
Cervical spinal fusion with CCMS-DRG 472, surgical15$57,173$17,445$16,3512.96
Fractures of hip and pelvis without MCCMS-DRG 536, medical15$19,341$3,920$5,5310.79
Pathological fractures and musculoskeletal and connective tissue malignancy with MCCMS-DRG 542, medical14$38,442$11,094$10,9941.82
Fracture, sprain, strain and dislocation except femur, hip, pelvis and thigh with MCCMS-DRG 562, medical14$33,514$9,468$9,5851.52
Other musculoskeletal system and connective tissue diagnoses with CCMS-DRG 565, medical14$18,002$5,693$5,1491.00
Bone diseases and arthropathies without MCCMS-DRG 554, medical12$17,423$4,987$4,9830.82
Spinal fusion except cervical without MCCMS-DRG 460, surgical11$66,185$21,003$18,9293.66
Revision of hip or knee replacement without cc/mccMS-DRG 468, surgical11$59,913$15,100$17,1352.67

Kidney and urinary tract534 discharges in 10 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Kidney and urinary tract infections with MCCMS-DRG 689, medical115$25,424$7,174$7,2711.17
Kidney and urinary tract infections without MCCMS-DRG 690, medical94$17,606$4,760$5,0350.81
Renal failure with MCCMS-DRG 682, medical87$33,630$9,277$9,6181.50
Renal failure with CCMS-DRG 683, medical72$20,520$5,346$5,8690.90
Other kidney and urinary tract diagnoses with MCCMS-DRG 698, medical55$40,227$10,464$11,5051.65
Kidney and ureter procedures for non-neoplasm with CCMS-DRG 660, surgical38$24,777$7,868$7,0861.35
Other kidney and urinary tract diagnoses with CCMS-DRG 699, medical28$17,409$5,939$4,9791.02
Other kidney and urinary tract procedures with MCCMS-DRG 673, surgical20$100,299$26,828$28,6863.70
Kidney and ureter procedures for non-neoplasm without cc/mccMS-DRG 661, surgical13$20,803$5,138$5,9501.05
Kidney and ureter procedures for non-neoplasm with MCCMS-DRG 659, surgical12$43,614$15,697$12,4742.59

Nervous system534 discharges in 18 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Intracranial hemorrhage or cerebral infarction with MCCMS-DRG 064, medical87$52,398$12,892$14,9862.00
Intracranial hemorrhage or cerebral infarction with CC or tpa in 24 hoursMS-DRG 065, medical84$32,689$6,117$9,3491.02
Degenerative nervous system disorders without MCCMS-DRG 057, medical47$23,034$8,229$6,5881.36
Seizures with MCCMS-DRG 100, medical37$68,647$14,514$19,6331.98
Traumatic stupor and coma >1 hour with MCCMS-DRG 082, medical33$57,675$14,690$16,4952.28
Degenerative nervous system disorders with MCCMS-DRG 056, medical32$30,492$14,976$8,7212.39
Transient ischemia without thrombolyticMS-DRG 069, medical32$23,347$4,460$6,6770.80
Seizures without MCCMS-DRG 101, medical28$26,940$5,297$7,7050.91
Craniotomy with major device implant or acute complex CNS principal diagnosis with MCC oMS-DRG 023, surgical21$167,450$37,279$47,8915.67
Traumatic stupor and coma >1 hour with CCMS-DRG 083, medical18$31,010$8,063$8,8691.36
Other disorders of nervous system with CCMS-DRG 092, medical18$16,672$6,355$4,7681.03
Craniotomy and endovascular intracranial procedures with MCCMS-DRG 025, surgical16$104,294$26,075$29,8284.42
Traumatic stupor and coma <1 hour with CCMS-DRG 086, medical16$36,909$8,048$10,5561.32
Extracranial procedures without cc/mccMS-DRG 039, surgical15$31,706$6,794$9,0681.14
Intracranial hemorrhage or cerebral infarction without cc/mccMS-DRG 066, medical13$27,121$3,615$7,7570.69
Cranial and peripheral nerve disorders without MCCMS-DRG 074, medical13$28,057$6,522$8,0241.03
Other disorders of nervous system with MCCMS-DRG 091, medical13$26,581$11,113$7,6021.79
Traumatic stupor and coma <1 hour with MCCMS-DRG 085, medical11$57,736$14,480$16,5122.27

Digestive system471 discharges in 12 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Gastrointestinal hemorrhage with CCMS-DRG 378, medical82$25,537$6,035$7,3040.98
Gastrointestinal hemorrhage with MCCMS-DRG 377, medical79$44,901$11,719$12,8421.79
Esophagitis, gastroenteritis and miscellaneous digestive disorders without MCCMS-DRG 392, medical70$19,000$4,566$5,4340.79
Esophagitis, gastroenteritis and miscellaneous digestive disorders with MCCMS-DRG 391, medical41$25,485$7,657$7,2891.28
Other digestive system diagnoses with CCMS-DRG 394, medical34$18,877$5,474$5,3990.94
Major gastrointestinal disorders and peritoneal infections with CCMS-DRG 372, medical32$24,799$5,936$7,0921.04
Gastrointestinal obstruction with CCMS-DRG 389, medical29$17,814$4,350$5,0950.80
Other digestive system diagnoses with MCCMS-DRG 393, medical28$27,197$10,400$7,7781.62
Gastrointestinal obstruction with MCCMS-DRG 388, medical23$27,785$8,963$7,9471.45
Major gastrointestinal disorders and peritoneal infections with MCCMS-DRG 371, medical22$32,286$11,181$9,2341.75
Major small and large bowel procedures with MCCMS-DRG 329, surgical19$84,493$27,545$24,1654.52
Major small and large bowel procedures with CCMS-DRG 330, surgical12$51,891$14,176$14,8412.37

Mental diseases and disorders277 discharges in 2 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
PsychosesMS-DRG 885, medical240$19,958$8,346$5,7081.37
Organic disturbances and intellectual disabilityMS-DRG 884, medical37$26,289$10,175$7,5191.76

Endocrine, nutritional and metabolic208 discharges in 8 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes with MCCMS-DRG 640, medical49$24,003$8,199$6,8651.32
Miscellaneous disorders of nutrition, metabolism, fluids and electrolytes without MCCMS-DRG 641, medical45$18,958$4,548$5,4220.78
Diabetes with MCCMS-DRG 637, medical31$27,734$8,939$7,9321.45
Diabetes with CCMS-DRG 638, medical25$20,124$5,365$5,7560.90
Endocrine disorders with CCMS-DRG 644, medical24$21,958$6,515$6,2801.06
Endocrine disorders with MCCMS-DRG 643, medical12$40,199$10,874$11,4971.65
Amputation of lower limb for endocrine, nutritional and metabolic disorders with CCMS-DRG 617, surgical11$37,464$11,085$10,7151.98
O.r. procedures for obesity without cc/mccMS-DRG 621, surgical11$31,888$8,153$9,1201.52

Skin, subcutaneous tissue and breast137 discharges in 3 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Cellulitis without MCCMS-DRG 603, medical68$17,631$5,045$5,0420.88
Cellulitis with MCCMS-DRG 602, medical37$34,770$9,473$9,9441.49
Trauma to the skin, subcutaneous tissue and breast without MCCMS-DRG 605, medical32$23,729$5,052$6,7860.91

Liver, gallbladder and pancreas111 discharges in 7 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Laparoscopic cholecystectomy without C.D.E. with CCMS-DRG 418, surgical29$37,904$9,584$10,8411.63
Disorders of the biliary tract with CCMS-DRG 445, medical18$24,184$6,505$6,9171.09
Cirrhosis and alcoholic hepatitis with MCCMS-DRG 432, medical16$41,943$10,965$11,9961.92
Laparoscopic cholecystectomy without C.D.E. with MCCMS-DRG 417, surgical13$50,032$14,820$14,3092.32
Laparoscopic cholecystectomy without C.D.E. without cc/mccMS-DRG 419, surgical12$28,099$7,119$8,0361.31
Disorders of liver except malignancy, cirrhosis or alcoholic hepatitis with MCCMS-DRG 441, medical12$41,622$11,224$11,9041.83
Disorders of the biliary tract with MCCMS-DRG 444, medical11$40,340$10,820$11,5371.63

Blood and immune system69 discharges in 4 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Red blood cell disorders without MCCMS-DRG 812, medical21$23,826$5,501$6,8140.90
Red blood cell disorders with MCCMS-DRG 811, medical19$42,754$9,097$12,2281.40
Major hematological and immunological diagnoses except sickle cell crisis and coagulatioMS-DRG 808, medical15$32,227$14,430$9,2172.19
Coagulation disordersMS-DRG 813, medical14$81,356$12,263$23,2681.56

Injuries, poisonings and toxic effects of drugs41 discharges in 2 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Poisoning and toxic effects of drugs with MCCMS-DRG 917, medical27$43,589$9,741$12,4671.60
Complications of treatment with MCCMS-DRG 919, medical14$38,567$11,120$11,0301.82

Alcohol and drug use41 discharges in 2 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Alcohol, drug abuse or dependence without rehabilitation therapy without MCCMS-DRG 897, medical24$21,201$4,710$6,0630.86
Alcohol, drug abuse or dependence without rehabilitation therapy with MCCMS-DRG 896, medical17$54,226$10,594$15,5091.78

Ear, nose, mouth and throat23 discharges in 1 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
DysequilibriumMS-DRG 149, medical23$19,353$4,389$5,5350.74

Factors influencing health status20 discharges in 1 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Other factors influencing health statusMS-DRG 951, medical20$10,375$3,889$2,9670.59

Other17 discharges in 1 DRGs

Condition or procedureDischargesAverage chargesAverage Medicare paymentEstimated costDRG weight
Extensive o.r. procedures unrelated to principal diagnosis with MCCMS-DRG 981, surgical17$111,938$30,021$32,0144.74

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 groupServicesPatientsAverage chargesAverage Medicare paymentUS average payment
Comprehensive Observation ServicesAPC 8011416399$14,134$1,907$2,090
Level 2 Upper GI ProceduresAPC 5302255225$6,066$1,340$1,445
Level 1 Nerve ProceduresAPC 5431219192$8,056$1,316$1,407
Level 2 Excision/ Biopsy/ Incision and DrainageAPC 5072211197$7,211$1,129$1,220
Level 3 Vascular ProceduresAPC 5183196169$9,171$2,213$2,405
Level 5 Musculoskeletal ProceduresAPC 5115165161$28,867$9,700$10,772
Level 1 Endovascular ProceduresAPC 5191161161$16,024$2,046$2,208
Level 1 Laparoscopy and Related ServicesAPC 5361137136$15,829$4,032$4,358
Level 4 Musculoskeletal ProceduresAPC 5114135132$17,978$5,033$5,339
Level 4 Urology and Related ServicesAPC 5374119102$10,383$2,438$2,629
Level 5 Urology and Related ServicesAPC 537510495$16,296$3,634$3,918
Level 3 Electrophysiologic ProceduresAPC 52138988$107,121$19,233$21,117
Level 3 Endovascular ProceduresAPC 51937773$40,066$8,148$8,874
Level 3 Excision/ Biopsy/ Incision and DrainageAPC 50737272$10,330$2,007$2,141
Level 3 Musculoskeletal ProceduresAPC 51136866$9,962$2,278$2,373
Level 3 Pacemaker and Similar ProceduresAPC 52236363$24,123$7,813$8,569
Level 4 Endovascular ProceduresAPC 51945754$60,416$13,744$14,606
Level 2 Vascular ProceduresAPC 51825451$4,646$1,101$1,204
Level 3 Urology and Related ServicesAPC 53734335$9,341$1,436$1,516
Level 2 Endovascular ProceduresAPC 51924233$18,051$4,050$4,338
Level 1 Breast/Lymphatic Surgery and Related ProceduresAPC 50913933$12,288$2,702$2,930
Level 2 Pacemaker and Similar ProceduresAPC 52223636$20,076$6,023$6,514
Level 2 Musculoskeletal ProceduresAPC 51123232$5,348$1,134$1,196
Level 3 Upper GI ProceduresAPC 53033231$7,818$2,716$2,888
Level 4 Vascular ProceduresAPC 51842926$20,888$3,888$3,946
Level 3 Lower GI ProceduresAPC 53132929$8,796$1,965$2,176
Level 4 Airway EndoscopyAPC 51542726$13,138$2,655$2,833
Level 6 Urology and Related ServicesAPC 53762727$24,146$6,566$7,291
Level 4 Gynecologic ProceduresAPC 54142625$10,844$2,143$2,389
Level 2 ICD and Similar ProceduresAPC 52322525$75,827$27,443$29,375
Level 2 Breast/Lymphatic Surgery and Related ProceduresAPC 50922424$23,792$4,624$4,982
Level 2 Laparoscopy and Related ServicesAPC 53622424$30,991$7,524$8,164
Level 4 Pacemaker and Similar ProceduresAPC 52242222$46,196$15,663$17,052
Level 1 Abdominal/Peritoneal/Biliary and Related ProceduresAPC 53412222$9,594$2,367$2,636
Level 6 Musculoskeletal ProceduresAPC 51162121$40,607$14,919$15,763
Level 5 ENT ProceduresAPC 51652121$18,024$3,982$4,436
Complex GI ProceduresAPC 53312112$12,313$3,849$4,263

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.