Exhibit #4 Outpatient Surgery Facility Codes and Fees source: 2019 CN2 Addendum A.12212018 Effective 1/1/2020 APC Short Descriptor Outpatient ASC Rate Additional Hospital Rate (85% of Instructions (180% of Hospital Rate) Medicare $) 0701 Sr89 strontium $ 2,704.24 $ 2,298.60 0726 Dexrazoxane HCl injection $ 413.87 $ 351.79 0731 Sargramostim injection $ 67.69 $ 57.54 0736 Amphotericin b liposome inj $ 86.52 $ 73.54 0738 Rasburicase $ 500.66 $ 425.56 0751 Mechlorethamine hcl inj $ 579.10 $ 492.24 0752 Dactinomycin injection $ 2,569.80 $ 2,184.33 0759 Naltrexone, depot form $ 5.86 $ 4.98 0800 Leuprolide acetate $ 2,148.60 $ 1,826.31 0802 Etoposide oral $ 136.01 $ 115.61 0807 Aldesleukin injection $ 7,448.66 $ 6,331.36 0809 Bcg live intravesical vac $ 253.11 $ 215.14 0810 Goserelin acetate implant $ 916.24 $ 778.80 0812 Carmustine injection $ 7,292.71 $ 6,198.80 0820 Daunorubicin injection $ 91.19 $ 77.51 0823 Docetaxel injection $ 2.72 $ 2.31 0825 Nelarabine injection $ 273.99 $ 232.89 0836 Interferon alfa-2b inj $ 61.46 $ 52.24 0840 Inj melphalan hydrochl $ 1,466.65 $ 1,246.65 0843 Pegaspargase injection $ 27,051.68 $ 22,993.93 0844 Pentostatin injection $ 3,773.31 $ 3,207.31 0850 Streptozocin injection $ 627.67 $ 533.52 0851 Thiotepa injection $ 1,334.84 $ 1,134.61 0856 Porfimer sodium injection $ 38,195.22 $ 32,465.94 0858 Inj cladribine $ 40.75 $ 34.64 0864 Mitoxantrone hydrochl $ 49.25 $ 41.86 0873 Hyalgan supartz visco-3 dose $ 153.55 $ 130.52 0874 Synvisc or synvisc-one $ 21.29 $ 18.10 0875 Euflexxa inj per dose $ 254.65 $ 216.45 0877 Orthovisc inj per dose $ 266.02 $ 226.12 Page 1 Effective January 1, 2020 0887 Azathioprine parenteral $ 412.84 $ 350.91 0890 Lymphocyte immune globulin $ 3,746.20 $ 3,184.27 0901 Alpha 1 proteinase inhibitor $ 8.03 $ 6.83 0902 Injection,onabotulinumtoxinA $ 11.05 $ 9.39 0903 Cytomegalovirus imm IV /vial $ 2,032.48 $ 1,727.61 0910 Interferon beta-1b / .25 MG $ 683.33 $ 580.83 0925 Factor viii $ 1.93 $ 1.64 0927 Factor viii recombinant $ 2.39 $ 2.03 0928 Factor ix complex $ 2.55 $ 2.17 0929 Anti-inhibitor $ 3.75 $ 3.19 0931 Factor IX non-recombinant $ 2.01 $ 1.71 0932 Factor ix recombinant nos $ 2.71 $ 2.30 0943 Octagam injection $ 66.10 $ 56.19 0944 Gammagard liquid injection $ 77.65 $ 66.00 0946 Hepagam b im injection $ 115.59 $ 98.25 0947 Flebogamma injection $ 63.12 $ 53.65 0948 Gamunex-C/Gammaked $ 71.09 $ 60.43 0961 Albumin (human),5%, 50ml $ 18.88 $ 16.05 0963 Albumin (human), 5%, 250 ml $ 94.41 $ 80.25 0964 Albumin (human), 25%, 20 ml $ 37.76 $ 32.10 0965 Albumin (human), 25%, 50ml $ 94.41 $ 80.25 1015 Injection glatiramer acetate $ 362.10 $ 307.79 1064 I131 iodide cap, rx $ 37.37 $ 31.76 1083 Adalimumab injection $ 2,323.96 $ 1,975.37 1138 Hepagam b intravenous, inj $ 115.59 $ 98.25 1139 Protein c concentrate $ 27.27 $ 23.18 1142 Supprelin LA implant $ 57,303.08 $ 48,707.62 1150 I131 iodide sol, rx $ 24.43 $ 20.77 1166 Cytarabine liposome inj $ 1,131.06 $ 961.40 1168 Inj, temsirolimus $ 132.76 $ 112.85 1178 Busulfan injection $ 18.67 $ 15.87 1203 Verteporfin injection $ 19.71 $ 16.75 1207 Octreotide injection, depot $ 357.32 $ 303.72 1213 Antihemophilic viii/vwf comp $ 1.79 $ 1.52 1214 Inj IVIG privigen 500 mg $ 71.34 $ 60.64 1232 Mitomycin injection $ 241.64 $ 205.39 1235 Valrubicin injection $ 2,391.60 $ 2,032.86 1236 Levoleucovorin injection $ 0.42 $ 0.36 1237 Inj iron dextran $ 25.30 $ 21.51 1253 Triamcinolone A inj PRS-free $ 6.94 $ 5.90 1263 Antithrombin iii injection $ 6.29 $ 5.35 Page 2 Effective January 1, 2020 1268 Xyntha inj $ 2.20 $ 1.87 1274 Edetate calcium disodium inj $ 10,069.96 $ 8,559.47 1281 Bevacizumab injection $ 3.57 $ 3.03 1289 AbobotulinumtoxinA $ 15.16 $ 12.89 1295 Sm 153 lexidronam $ 26,385.17 $ 22,427.39 1296 Degarelix injection $ 6.69 $ 5.69 1297 Ferumoxytol, non-esrd $ 1.76 $ 1.50 1311 Canakinumab injection $ 199.80 $ 169.83 1312 Hizentra injection $ 17.75 $ 15.09 1327 Imiglucerase injection $ 74.61 $ 63.42 1340 Collagenase, clost hist inj $ 81.09 $ 68.93 1341 Amobarbital 125 MG inj $ 101.92 $ 86.63 1352 Wilate injection $ 1.82 $ 1.55 1353 Belimumab injection $ 79.49 $ 67.57 1408 Cyclophosphamide 100 MG inj $ 74.90 $ 63.67 1413 Lumizyme injection $ 294.89 $ 250.66 1415 Glassia injection $ 8.38 $ 7.12 1416 Factor xiii anti-hem factor $ 14.81 $ 12.59 1417 Gel-one $ 967.25 $ 822.16 1420 Aflibercept injection $ 1,741.19 $ 1,480.01 1421 Imported lipodox inj $ 846.72 $ 719.71 1426 Eribulin mesylate injection $ 205.81 $ 174.94 1431 Centruroides immune f(ab) $ 8,267.04 $ 7,026.98 1433 Calcitonin salmon injection $ 4,733.15 $ 4,023.18 1440 Inj desmopressin acetate $ 22.69 $ 19.29 1442 Non-HEU TC-99M add- $ 18.00 $ 15.30 on/dose 1443 Icatibant injection $ 646.21 $ 549.28 1446 Visualization adjunct $ 6.95 $ 5.91 1458 Phentolaine mesylate inj $ 707.12 $ 601.05 1466 Inj, vincristine sul lip 1mg $ 5,249.92 $ 4,462.43 1467 Factor ix recombinan rixubis $ 2.35 $ 2.00 1468 Inj Aripiprazole Ext Rel 1mg $ 9.43 $ 8.02 1469 Inj filgrastim excl biosimil $ 1.83 $ 1.56 1471 Injection, Pertuzumab, 1 mg $ 21.36 $ 18.16 1472 Inj beta interferon im 1 mcg $ 97.40 $ 82.79 1474 Certolizumab pegol inj 1mg $ 14.64 $ 12.44 1475 Golimumab for iv use 1mg $ 43.21 $ 36.73 1476 Obinutuzumab inj $ 112.74 $ 95.83 1478 Inj human fibrinogen con nos $ 2.10 $ 1.79 1480 Elosulfase alfa, injection $ 425.93 $ 362.04 Page 3 Effective January 1, 2020 1482 Darbepoetin alfa, esrd use $ 6.79 $ 5.77 1485 Ferumoxytol, esrd use $ 1.76 $ 1.50 1486 Factor ix fc fusion recomb $ 5.37 $ 4.56 1488 Injection, ramucirumab $ 103.82 $ 88.25 1489 Injection, vedolizumab $ 35.25 $ 29.96 1490 Inj pembrolizumab $ 88.83 $ 75.51 1491 New Technology - Level 1A $ 9.00 $ 7.65 ($0-$10) 1492 New Technology - Level 1B $ 27.90 $ 23.72 ($11-$20) 1493 New Technology - Level 1C $ 45.90 $ 39.02 ($21-$30) 1494 New Technology - Level 1D $ 63.90 $ 54.32 ($31-$40) 1495 New Technology - Level 1E $ 81.90 $ 69.62 ($41-$50) 1496 New Technology - Level 1A $ 9.00 $ 7.65 ($0-$10) 1497 New Technology - Level 1B $ 27.90 $ 23.72 ($11-$20) 1498 New Technology - Level 1C $ 45.90 $ 39.02 ($21-$30) 1499 New Technology - Level 1D $ 63.90 $ 54.32 ($31-$40) 1500 New Technology - Level 1E $ 81.90 $ 69.62 ($41-$50) 1502 New Technology - Level 2 ($51 $ 135.90 $ 115.52 - $100) 1503 New Technology - Level 3 $ 270.90 $ 230.27 ($101 - $200) 1504 New Technology - Level 4 $ 450.90 $ 383.27 ($201 - $300) 1505 New Technology - Level 5 $ 630.90 $ 536.27 ($301 - $400) 1506 New Technology - Level 6 $ 810.90 $ 689.27 ($401 - $500) 1507 New Technology - Level 7 $ 990.90 $ 842.27 ($501 - $600) 1508 New Technology - Level 8 $ 1,170.90 $ 995.27 ($601 - $700) 1509 New Technology - Level 9 $ 1,350.90 $ 1,148.27 ($701 - $800) Page 4 Effective January 1, 2020 1510 New Technology - Level 10 $ 1,530.90 $ 1,301.27 ($801 - $900) 1511 New Technology - Level 11 $ 1,710.90 $ 1,454.27 ($901 - $1000) 1512 New Technology - Level 12 $ 1,890.90 $ 1,607.27 ($1001 - $1100) 1513 New Technology - Level 13 $ 2,070.90 $ 1,760.27 ($1101 - $1200) 1514 New Technology - Level 14 $ 2,250.90 $ 1,913.27 ($1201- $1300) 1515 New Technology - Level 15 $ 2,430.90 $ 2,066.27 ($1301 - $1400) 1516 New Technology - Level 16 $ 2,610.90 $ 2,219.27 ($1401 - $1500) 1517 New Technology - Level 17 $ 2,790.90 $ 2,372.27 ($1501-$1600) 1518 New Technology - Level 18 $ 2,970.90 $ 2,525.27 ($1601-$1700) 1519 New Technology - Level 19 $ 3,150.90 $ 2,678.27 ($1701-$1800) 1520 New Technology - Level 20 $ 3,330.90 $ 2,831.27 ($1801-$1900) 1521 New Technology - Level 21 $ 3,510.90 $ 2,984.27 ($1901-$2000) 1522 New Technology - Level 22 $ 4,050.90 $ 3,443.27 ($2001-$2500) 1523 New Technology - Level 23 $ 4,950.90 $ 4,208.27 ($2501-$3000) 1524 New Technology - Level 24 $ 5,850.90 $ 4,973.27 ($3001-$3500) 1525 New Technology - Level 25 $ 6,750.90 $ 5,738.27 ($3501-$4000) 1526 New Technology - Level 26 $ 7,650.90 $ 6,503.27 ($4001-$4500) 1527 New Technology - Level 27 $ 8,550.90 $ 7,268.27 ($4501-$5000) 1528 New Technology - Level 28 $ 9,450.90 $ 8,033.27 ($5001-$5500) 1529 New Technology - Level 29 $ 10,350.90 $ 8,798.27 ($5501-$6000) 1530 New Technology - Level 30 $ 11,250.90 $ 9,563.27 ($6001-$6500) Page 5 Effective January 1, 2020 1531 New Technology - Level 31 $ 12,150.90 $ 10,328.27 ($6501-$7000) 1532 New Technology - Level 32 $ 13,050.90 $ 11,093.27 ($7001-$7500) 1533 New Technology - Level 33 $ 13,950.90 $ 11,858.27 ($7501-$8000) 1534 New Technology - Level 34 $ 14,850.90 $ 12,623.27 ($8001-$8500) 1535 New Technology - Level 35 $ 15,750.90 $ 13,388.27 ($8501-$9000) 1536 New Technology - Level 36 $ 16,650.90 $ 14,153.27 ($9001-$9500) 1537 New Technology - Level 37 $ 17,550.90 $ 14,918.27 ($9501-$10000) 1539 New Technology - Level 2 ($51 $ 135.90 $ 115.52 - $100) 1540 New Technology - Level 3 $ 270.90 $ 230.27 ($101 - $200) 1541 New Technology - Level 4 $ 450.90 $ 383.27 ($201 - $300) 1542 New Technology - Level 5 $ 630.90 $ 536.27 ($301 - $400) 1543 New Technology - Level 6 $ 810.90 $ 689.27 ($401 - $500) 1544 New Technology - Level 7 $ 990.90 $ 842.27 ($501 - $600) 1545 New Technology - Level 8 $ 1,170.90 $ 995.27 ($601 - $700) 1546 New Technology - Level 9 $ 1,350.90 $ 1,148.27 ($701 - $800) 1547 New Technology - Level 10 $ 1,530.90 $ 1,301.27 ($801 - $900) 1548 New Technology - Level 11 $ 1,710.90 $ 1,454.27 ($901 - $1000) 1549 New Technology - Level 12 $ 1,890.90 $ 1,607.27 ($1001 - $1100) 1550 New Technology - Level 13 $ 2,070.90 $ 1,760.27 ($1101 - $1200) 1551 New Technology - Level 14 $ 2,250.90 $ 1,913.27 ($1201- $1300) 1552 New Technology - Level 15 $ 2,430.90 $ 2,066.27 ($1301 - $1400) Page 6 Effective January