breach standard (Illinois) · Go Syfert
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breach standard in Illinois

95 Illinois opinions name it 2 courts 1891–2026 11 in the last five years

The cases below were cited by Illinois courts in a sentence that names this issue. Sides come from how each citing opinion treated the case (Syfertize flag on that citation), so a case can appear on both: that is where the law is contested. A red or yellow chip is the case's own overall treatment.

Followed or applied (31)

CaseFollowedCited
Thomas v. Johnson Controls, Inc.green
illappct · 2003 · cited in 4 Illinois opinions naming this issue, 2013–2014
2 sentences

2014Thomas v. Johnson Controls, Inc., 344 Ill.

2013Thomas v. Johnson Controls, Inc., 344 Ill.

44
Knauerhaze v. Nelsongreen
illappct · 2005 · cited in 6 Illinois opinions naming this issue, 2006–2009
2 sentences

2008However, even if plaintiff was able to show the second element, namely a breach of the standard of care, there was no evidence of the third element, namely, a causal relationship between an alleged breach of duty and the death at issue. "`[I]n order to sustain the burden of proof, a plaintiff's expert must demonstrate within a reasonable degree of medical certainty that the defendant's breach in the standard of care is more probably than not the cause of the injury.'" Bergman v. Kelsey, 375 Ill.App.3d 612, 625 , 313 Ill.Dec. 862 , 873 N.E.2d 486 (2007), quoting Knauerhaze v. Nelson, 361 Ill.Ap

2008However, even if plaintiff was able to show the second element, namely a breach of the standard of care, there was no evidence of the third element, namely, a causal relationship between an alleged breach of duty and the death at issue. "`[I]n order to sustain the burden of proof, a plaintiff's expert must demonstrate within a reasonable degree of medical certainty that the defendant's breach in the standard of care is more probably than not the cause of the injury.'" Bergman v. Kelsey, 375 Ill.App.3d 612, 625 , 313 Ill.Dec. 862 , 873 N.E.2d 486 (2007), quoting Knauerhaze v. Nelson, 361 Ill.Ap

36
Bergman v. Kelseygreen
illappct · 2007 · cited in 3 Illinois opinions naming this issue, 2008–2009
2 sentences

2009App. 3d 591, 601 (2006). “ ‘[T]o sustain the burden of proof, a plaintiff’s expert must demonstrate within a reasonable degree of medical certainty that the defendant’s breach in the standard of care is more probably than not the cause of the injury.’ ” Bergman v. Kelsey, 375 Ill.

2008However, even if plaintiff was able to show the second element, namely, a breach of the standard of care, there was no evidence of the third element, namely, a causal relationship between an alleged breach of duty and the death at issue. “ ‘[I]n order to sustain the burden of proof, a plaintiffs expert must demonstrate within a reasonable degree of medical certainty that the defendant’s breach in the standard of care is more probably than not the cause of the injury’ ” Bergman v. Kelsey, 375 Ill.

33
Walski v. Tiesengagreen
ill · 1978 · cited in 4 Illinois opinions naming this issue, 1987–2023
2 sentences

2023Id.

1998The rationale for the requirement of expert testimony is that "jurors are not skilled in the practice of medicine and would find it difficult without the help of medical evidence to determine any lack of necessary scientific skill on the part of the physician [or any other health care provider]." Walski v. Tiesenga , 72 Ill. 2d 249, 256 , 381 N.E.2d 279, 282 (1978).

24
Westchester Fire Ins. Co. v. G. Heileman Brewing Co., Inc.green
illappct · 2001 · cited in 4 Illinois opinions naming this issue, 2009–2011
2 sentences

2011Westchester Fire Insurance Co., 321 Ill.App.3d at 637 , 254 Ill.Dec. 543 , 747 N.E.2d 955 . ¶ 30 The "voluntary payment" provision in Pekin's policy to XData provided: "[n]o insureds will, except at their own cost, voluntarily make a payment, assume any obligation, or incur any expense, other than for first aid, without our consent." ¶ 31 Here, we conclude that XData did not breach the "voluntary payment" provision in the insurance policy.

2011Westchester Fire Insurance Co., 321 Ill.App.3d at 637 , 254 Ill.Dec. 543 , 747 N.E.2d 955 . ¶ 30 The "voluntary payment" provision in Pekin's policy to XData provided: "[n]o insureds will, except at their own cost, voluntarily make a payment, assume any obligation, or incur any expense, other than for first aid, without our consent." ¶ 31 Here, we conclude that XData did not breach the "voluntary payment" provision in the insurance policy.

24
Northern Trust Co. v. Upjohn Co.green
illappct · 1991 · cited in 4 Illinois opinions naming this issue, 2006–2008
2 sentences

2008App. 3d at 1125 . “[I]n a medical malpractice action, it is the plaintiff’s duty to establish the proper standard of care to be applied to a defendant-doctor’s conduct, a breach of that standard, and a resulting injury proximately caused by the breach of care.” Northern Trust Co. v. Upjohn Co., 213 Ill.

2008App. 3d at 1125 . “[I]n a medical malpractice action, it is the plaintiff’s duty to establish the proper standard of care to be applied to a defendant-doctor’s conduct, a breach of that standard, and a resulting injury proximately caused by the breach of care.” Northern Trust Co. v. Upjohn Co., 213 Ill.

24
Purtill v. Hessgreen
ill · 1986 · cited in 3 Illinois opinions naming this issue, 1991–2025
2 sentences

2025Neade v. Portes, 193 Ill. 2d 433, 443-44 (2000) (citing Purtill v. Hess, 111 Ill. 2d 229, 241-42 (1986)).

2020Purtill v. Hess, 111 Ill. 2d 229, 241-42 , 489 N.E.2d 867, 872 (1986).

23
VELOCITY INVESTMENTS, LLC v. Alstongreen
illappct · 2010 · cited in 2 Illinois opinions naming this issue, 2015–2015
2 sentences

2015Our courts have long held that a reviewing court is "not a repository into which an appellant may foist the burden of argument and research." (Internal quotation marks omitted.) Velocity Investments, LLC v. Alston, 397 Ill.

2015Our courts have long held that a reviewing court is “not a repository into which an appellant may foist the burden of argument and research.” (Internal quotation marks omitted.) Velocity Investments, LLC v. Alston, 397 Ill.

22
Cammon v. West Suburban Hospital Medical Centergreen
illappct · 1998 · cited in 2 Illinois opinions naming this issue, 2009–2009
2 sentences

2009See Cammon, 301 Ill.App.3d at 950 , 235 Ill.Dec. 158 , 704 N.E.2d at 739 (claim that hospital was negligent in destroying patient records that plaintiff needed to support a medical-malpractice lawsuit did not arise out of patient care; plaintiff's injury was her inability to prove her medical-negligence allegations, and it arose out of the actual destruction of the documents, not out of the breach of the standard of care).

2009See Cammon, 301 Ill.App.3d at 950 , 235 Ill.Dec. 158 , 704 N.E.2d at 739 (claim that hospital was negligent in destroying patient records that plaintiff needed to support a medical-malpractice lawsuit did not arise out of patient care; plaintiff's injury was her inability to prove her medical-negligence allegations, and it arose out of the actual destruction of the documents, not out of the breach of the standard of care).

22
Nolan v. Johns-Manville Asbestosgreen
ill · 1981 · cited in 2 Illinois opinions naming this issue, 1997–1997
2 sentences

1997See Nolan, 85 Ill. 2d at 171 , 421 N.E.2d at 868 .

1997See Nolan, 85 Ill. 2d at 171 , 421 N.E.2d at 868 .

22
People v. Knippenberggreen
ill · 1977 · cited in 2 Illinois opinions naming this issue, 1997–1997
2 sentences

1997See People v. Knippenberg, 66 Ill.2d 276 , 6 Ill.Dec. 46 , 362 N.E.2d 681 (1977).

1997See People v. Knippenberg, 66 Ill. 2d 276 (1977).

22
Jackson v. Board of Review of the Department of Laborgreen
ill · 1985 · cited in 4 Illinois opinions naming this issue, 1985–1997
2 sentences

1989In addition to the existence of such a rule, it must be shown that the breach of the rule is deliberate or its equivalent, as stated in the above-quoted definition.” Jackson, 105 Ill. 2d at 512-13 .

1985In addition to the existence of such a rule, it must be shown that the breach of the rule is deliberate or its equivalent, as stated in the above-quoted definition.” ( 105 Ill. 2d 501, 512-13 .) In outlining this definition of misconduct, our supreme court specifically rejected the argument that, in order to establish misconduct under section 602A, it is necessary to show that the conduct, in question, harmed or potentially harmed the employer.

14
Neade v. Portesgreen
ill · 2000 · cited in 3 Illinois opinions naming this issue, 2001–2025
2 sentences

2025Neade v. Portes, 193 Ill. 2d 433, 443-44 (2000) (citing Purtill v. Hess, 111 Ill. 2d 229, 241-42 (1986)).

2001(Emphasis added.) Neade, 193 Ill. 2d at 449 , 739 N.E.2d at 505 .

13
Holton v. Memorial Hospitalgreen
ill · 1997 · cited in 3 Illinois opinions naming this issue, 2009–2019
2 sentences

2019Holton v. Memorial Hospital, 176 Ill. 2d 95, 106-07 (1997). ¶ 31 The trial court found that a JNOV was warranted because John failed to offer expert testimony to establish proximate causation to link the alleged deviations from the standard of care to Jill’s death, which resulted from suicide by Tylenol overdose.

2018Holton v. Memorial Hospital , 176 Ill. 2d 95 , 106-07, 223 Ill.Dec. 429 , 679 N.E.2d 1202 (1997). ¶ 31 The trial court found that a judgment notwithstanding the verdict was warranted because John failed to offer expert testimony to establish proximate causation to link the alleged deviations from the standard of care to Jill's death, which resulted from suicide by Tylenol overdose.

13
Sinclair v. Berlingreen
illappct · 2001 · cited in 2 Illinois opinions naming this issue, 2007–2007
2 sentences

2007App. 3d 209, 222 (1990) (the jury is uniquely qualified to resolve conflicting medical testimony concerning the applicable standard of care and a defendant’s breach of that standard); Sinclair v. Berlin, 325 Ill.

2007App. 3d 209, 222 (1990) (the jury is uniquely qualified to resolve conflicting medical testimony concerning the applicable standard of care and a defendant's breach of that standard); Sinclair v. Berlin, 325 Ill.

12
Mengelson v. Ingalls Health Venturesgreen
illappct · 2001 · cited in 2 Illinois opinions naming this issue, 2005–2005
2 sentences

2005Mengelson , 323 Ill.

2005Mengelson, 323 Ill.

12
Council for Jewish Elderly v. Estate of Kurtzgreen
illappct · 2024 · cited in 1 Illinois opinions naming this issue, 2026–2026
1 sentence

2026See Council for Jewish Elderly v. Kurtz, 2024 IL App (1st) 230102, ¶ 42 (“Both quantum meruit and unjust enrichment are quasi-contractual legal theories based on a contract implied by law.”). ¶ 20 That leaves fraudulent misrepresentation as the only claim that could be barred by the Tort Immunity Act.

11
People v. Nelsongreen
ill · 2009 · cited in 1 Illinois opinions naming this issue, 2024–2024
11
In re Estate of Mathersgreen
illappct · 2022 · cited in 1 Illinois opinions naming this issue, 2024–2024
11
Wollenberger v. Hoovergreen
ill · 1931 · cited in 1 Illinois opinions naming this issue, 2023–2023
11
South Beloit Electric Co. v. Lar Gar Enterprises, Inc.green
illappct · 1967 · cited in 1 Illinois opinions naming this issue, 2023–2023
11
Mohanty v. St. John Heart Clinic, S.C.green
ill · 2006 · cited in 1 Illinois opinions naming this issue, 2023–2023
11
Emerald Investments Ltd. Partnership v. Allmerica Financial Life Insurance & Annuity Co.green
ca7 · 2008 · cited in 1 Illinois opinions naming this issue, 2023–2023
11
Heastie v. Robertsgreen
ill · 2007 · cited in 1 Illinois opinions naming this issue, 2023–2023
11
Chicago Washed Coal Co. v. Whitsettgreen
ill · 1917 · cited in 1 Illinois opinions naming this issue, 2023–2023
11
Dubey v. Public Storage, Inc.green
illappct · 2009 · cited in 1 Illinois opinions naming this issue, 2023–2023
11
City of Chicago v. Beretta U.S.A. Corp.green
ill · 2004 · cited in 1 Illinois opinions naming this issue, 2019–2019
11
Psychiatric Institute of Washington v. Allengreen
dc · 1986 · cited in 1 Illinois opinions naming this issue, 1998–1998
11
Pesce v. Board of Review of Department of Employment Securitygreen
illappct · 1987 · cited in 1 Illinois opinions naming this issue, 1997–1997
11
Caterpillar, Inc. v. Fehrenbachergreen
illappct · 1997 · cited in 1 Illinois opinions naming this issue, 1997–1997
11
Borowski v. Von Solbriggreen
ill · 1975 · cited in 1 Illinois opinions naming this issue, 1994–1994
11

Distinguished, questioned or overruled (0)

CaseNegativeCited
No negative-treatment citations attached to this issue in Illinois. Read the followed side critically anyway.

Also cited on this issue (45)

CaseCitedYears
Metz v. Fairbury Hospital green
illappct · 1983
2 sentences

2023Id. at 1094 . ¶ 25 The appellate court affirmed.

2011Metz, 118 Ill.App.3d at 1098 , 74 Ill.Dec. 472 , 455 N.E.2d 1096 .

32011–2023
Helping Others Maintain Environmental Standards v. Bos green
illappct · 2010
2 sentences

2015Deborah argues including the breach claim in her final pleading was all that was required to preserve the issue for review, citing Helping Others Maintain Environmental Standards v. Bos, 406 Ill.

2015Deborah argues including the breach claim in her final pleading was all that was required to preserve the issue for review, citing Helping Others Maintain Environmental Standards v. Bos, 406 Ill.

22015–2015
Howard v. Druckemiller green
illappct · 1992
2 sentences

2013Id. ¶ 55 As we explained: “[t]he plaintiff's first amended complaint included well-pleaded facts that, when construed in his favor, could support a conclusion that the defendant's advice not to hire a private inspector was a breach of the standard of care owed him.

2013Id. ¶ 55 As we explained: “[t]he plaintiff’s first amended complaint included well-pleaded facts that, when construed in his favor, could support a conclusion that the defendant’s advice not to hire a private inspector was a breach of the standard of care owed him.

22013–2013
Bearden v. Hamby green
illappct · 1992
2 sentences

2010Evidence of Financial Incentive In his brief, the plaintiff seeks to support the introduction of "financial interest" evidence because "the introduction of this evidence was limited and specific to the issue of the defendants' compliance with the standard of care." The plaintiff claims, "the evidence of financial incentive goes to the heart of the breach of the standard of care by the physician." I note no authority is cited for the introduction of such evidence even where its purpose is "limited and specific." The plaintiff seeks to distinguish the decision in Bearden v. Hamby, 240 Ill.

2009Evidence of Financial Incentive In his brief, the plaintiff seeks to support the introduction of “financial interest” evidence because “the introduction of this evidence was limited and specific to the issue of the defendants’ compliance with the standard of care.” The plaintiff claims, “the evidence of financial incentive goes to the heart of the breach of the standard of care by the physician.” I note no authority is cited for the introduction of such evidence even where its purpose is “limited and specific.” The plaintiff seeks to distinguish the decision in Bearden v. Hamby, 240 Ill.

22009–2010
Baltus v. Weaver Division of Kidde & Co. green
illappct · 1990
2 sentences

2009Baltus, 199 Ill.

2009Baltus, 199 Ill.

22009–2009
Rush v. Hamdy green
illappct · 1993
2 sentences

2006Rush, 255 Ill.

2006Rush, 255 Ill.

22006–2006
Pittway Corp. v. American Motorists Insurance green
illappct · 1977
2 sentences

2001Pittway, 56 Ill.

2001Pittway , 56 Ill.

22001–2001
Martin v. Zucker green
illappct · 1985
2 sentences

1993(See Martin v. Zuchker (1985), 133 Ill.App.3d 982, 991 , 88 Ill.Dec. 980, 986 , 479 N.E.2d 1000, 1006 .) The jury first listened to plaintiff's medical expert (Dr. Zook) state why he felt that defendant's decision to excise plaintiff's mark constituted a breach of the standard of care as it existed in 1974.

1993App. 3d 982, 991 , 479 N.E.2d 1000, 1006 .) The jury first listened to plaintiff’s medical expert (Dr. Zook) state why he felt that defendant’s decision to excise plaintiff’s mark constituted a breach of the standard of care as it existed in 1974.

21993–1993
Aguilera v. Mount Sinai Hospital Medical Center green
illappct · 1998
1 sentence

2026Additionally, plaintiff asserts that, in expecting him to present expert testimony to prove what the results of the CT scan would have shown, the court was requiring expert testimony on “every disputed fact,” which was “overkill.” Plaintiff also asserts that, in any event, Furry testified that “a breach of the standard of care *** caused the bleed to continue to grow undetected,” which, plaintiff argues, was sufficient evidence to establish proximate causation. ¶ 30 In analyzing plaintiff’s arguments, we find Aguilera v. Sinai Hospital Medical Center, 293 Ill.

12026–2026
PML Development LLC v. Village of Hawthorn Woods green
ill · 2023
1 sentence

2026PML Development, 2023 IL 128770, ¶ 51 .

12026–2026
Townsend v. University of Chicago Hospitals green
illappct · 2000
1 sentence

2026App. 3d 967 (1997), Townsend v. University of Chicago Hospitals, 318 Ill.

12026–2026
Perez v. St. Alexius Medical Center green
illappct · 2022
1 sentence

2025Additionally, if multiple theories or defenses are raised, “ ‘a party must submit special interrogatories to determine whether any error in an alleged erroneous instruction could have affected the verdict’ ” Id. (quoting Allen v. Sarah Bush Lincoln Health Center, 2021 IL App (4th) 200360, ¶ 122 . ¶ 18 In an action for medical negligence, the plaintiff ultimately must prove two propositions: (1) that the defendant deviated from the applicable standard of care in the medical community and (2) that the defendant’s breach of the standard of care proximately caused the plaintiff’s injury.

12025–2025
Allen v. Sarah Bush Lincoln Health Center green
illappct · 2021
1 sentence

2025Additionally, if multiple theories or defenses are raised, “ ‘a party must submit special interrogatories to determine whether any error in an alleged erroneous instruction could have affected the verdict’ ” Id. (quoting Allen v. Sarah Bush Lincoln Health Center, 2021 IL App (4th) 200360, ¶ 122 . ¶ 18 In an action for medical negligence, the plaintiff ultimately must prove two propositions: (1) that the defendant deviated from the applicable standard of care in the medical community and (2) that the defendant’s breach of the standard of care proximately caused the plaintiff’s injury.

12025–2025
Adrian Smith + Gordon Gill Architecture LLP v. Chicago Shakespeare Theater neutral
illappct · 2024
12024–2024
The Chicago Tribune v. The College of DuPage green
illappct · 2017
12022–2022
Williams v. Covenant Medical Center green
illappct · 2000
12022–2022
Gulf Liquids New River Project, LLC v. Gulsby Engineering, Inc. green
texapp · 2011
12020–2020
Obermeier v. Northwestern Memorial Hospital green
illappct · 2019
12019–2019
Snelson v. Kamm green
ill · 2003
12013–2013
Starcevich v. City of Farmington green
illappct · 1982
12013–2013
Eisenbrandt v. Finnegan green
illappct · 1987
12013–2013
Advincula v. United Blood Services green
ill · 1996
12008–2008
Manion v. Brant Oil Co. green
illappct · 1967
12001–2001
Barth v. Reagan green
ill · 1990
11994–1994
Wilson v. Clark green
ill · 1981
11993–1993
Jackson v. Pellerano green
illappct · 1991
11993–1993
Gorman v. Shu-Fang Chen, M.D., Ltd. green
illappct · 1992
11993–1993
Spivack, Shulman & Goldman v. Foremost Liquor Store, Inc. green
illappct · 1984
11992–1992
Melecosky v. McCarthy Brothers Co. green
ill · 1986
11991–1991
Piano v. Davison green
illappct · 1987
11990–1990
Savage Manufacturing & Sales, Inc. v. Doser green
illappct · 1989
11990–1990
Davis v. Commonwealth Edison Co. green
ill · 1975
11984–1984
House v. Maddox green
illappct · 1977
11984–1984
Mississippi Meadows, Inc. v. Hodson green
illappct · 1973
11984–1984
Pfeiffenberger v. Illinois Terminal Railroad neutral
illappct · 1946
11982–1982
Burrow v. Widder neutral
illappct · 1977
11978–1978
Hansen v. Skul neutral
illappct · 1977
11978–1978
Vignali v. Farmers Equitable Insurance neutral
illappct · 1966
11978–1978
Department of Transportation v. Zabel neutral
illappct · 1975
11977–1977
Reighley v. Continental Illinois National Bank & Trust Co. green
ill · 1945
11973–1973

Statutes the citing opinions construe

IL § 735 ILCS 5/2-1005 (7) IL § 735 ILCS 5/2-615 (7) IL § 735 ILCS 5/13-212 (6) IL § 735 ILCS 5/2-619 (5) IL § 750 ILCS 65/15 (5) IL § 735 ILCS 5/2-1108 (4) IL § 735 ILCS 5/2-616 (4) IL § 735 ILCS 5/9-102 (4) IL § 735 ILCS 5/9-209 (4) IL § 735 ILCS 5/2-1202 (3) IL § 735 ILCS 5/2-622 (3) IL § 740 ILCS 180/2 (3)

Counted by distinct opinions that both name this issue and are annotated to the section; sections every opinion cites regardless of issue are not filtered here, so read the counts against the total above.

Where else courts name it

TX 426 (1919–2026) MI 146 (1888–2026) LA 113 (1979–2026) GA 106 (1932–2025) AL 100 (1915–2025) IL 95 (1891–2026) OH 81 (1931–2026) CT 69 (1878–2025) NY 63 (1838–2025) CA 54 (1942–2026) PA 54 (1890–2025) FL 49 (1970–2024) DC 41 (1978–2024) IN 36 (1912–2026) MS 31 (1987–2025) TN 30 (1990–2025) IA 28 (1874–2025) AZ 28 (1973–2026) NC 28 (1922–2026) MD 27 (1912–2026) MA 27 (1870–2025) UT 26 (1957–2025) WA 26 (1983–2026) MO 21 (1965–2022) NJ 20 (1951–2026) ID 20 (1915–2025) SC 19 (1907–2024) OR 19 (1903–2025) DE 18 (2015–2026) ME 17 (1827–2017) VA 15 (1914–2025) MN 13 (1915–2026) WY 13 (1976–2024) OK 13 (1913–2026) WV 12 (1916–2023) WI 11 (1890–2025) KY 11 (1963–2025) MT 10 (1983–2026) NE 9 (1914–2024) VT 9 (1938–2024) KS 8 (2001–2026) CO 6 (1971–2024) NV 5 (1918–2022) RI 5 (1997–2015) NM 5 (2016–2025) NH 5 (1829–2021) AK 3 (1991–2021) AR 3 (1932–2018) HI 3 (1922–2010) ND 3 (1988–2004) SD 2 (2007–2008)

Opinions by the citing court's state. A doctrine retained in one state and abandoned in another shows up here as a year span that stalls.

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