DSM Text Revisions Count as the “Most Recently Published Edition”; PTSD Presumption Rebuttal Is Not Limited to IPEs and Outdated-DSM IPEs Are Weighable Evidence

1. Introduction

In Nicholas Rowe v. City of Minneapolis, Self-Insured (Minn. July 22, 2026), the Minnesota Supreme Court reviewed a decision of the Workers’ Compensation Court of Appeals (WCCA) that had vacated a compensation judge’s denial of workers’ compensation benefits for alleged work-related post-traumatic stress disorder (PTSD).

The respondent, Nicholas Rowe, a former Minneapolis police officer, sought benefits based on a PTSD diagnosis. The relator, the City of Minneapolis (self-insured), denied primary liability and presented contrary expert evidence. The central appellate dispute was not whether Rowe qualified for the PTSD presumption—everyone agreed he did—but what “counts” as legally permissible rebuttal and whether the compensation judge could consider the City’s expert opinion when that expert referenced the DSM-5 rather than the DSM-5-TR.

The case presented three intertwined statutory-interpretation issues under the Workers’ Compensation Act, Minn. Stat. § 176.011, subd. 15(d)–(e): (1) what “most recently published edition” of the DSM means, (2) whether rebuttal is limited to an independent psychological evaluation (IPE) using that most recent edition, and (3) whether an IPE grounded in an “outdated” DSM edition must be excluded as a matter of law.

2. Summary of the Opinion

The Supreme Court reversed the WCCA and remanded.

  • The Court agreed with the WCCA that, for purposes of Minn. Stat. § 176.011, subd. 15(d), the “most recently published edition” of the DSM includes text revisions—meaning the DSM-5-TR (published March 18, 2022) was the most recent edition during the relevant period.
  • The Court rejected the WCCA’s categorical rule that an employer may rebut the PTSD presumption only with an IPE based on the most recent DSM edition.
  • The Court further rejected the WCCA’s exclusionary rule that a compensation judge is barred from considering an employer’s IPE simply because it references an outdated DSM edition; instead, DSM mismatch generally affects weight, not admissibility.
  • Because the WCCA set aside the compensation judge’s rebuttal finding solely due to the DSM-5 reference, the Supreme Court held the WCCA erred and remanded for the WCCA to consider two alternative arguments the employee raised but the WCCA did not reach (foundation and partial-period benefits).

3. Analysis

3.1. Precedents Cited

A. Defining the DSM’s role and the PTSD presumption

The opinion situates the DSM as a widely accepted diagnostic framework and treats DSM-referenced statutory language as central to the PTSD presumption.

  • Smith v. Carver County, 931 N.W.2d 390 (Minn. 2019): cited for the proposition that the DSM is a widely accepted clinical manual establishing diagnostic criteria. This background supports why the Legislature would tether compensability to DSM-defined PTSD and why disputes arise when DSM publications change.
  • Juntunen v. Carlton County, 982 N.W.2d 729 (Minn. 2022): the most important substantive precedent for rebuttal mechanics. The Court relied on Juntunen to reject the WCCA’s “IPE-only” rebuttal rule. In particular, Juntunen recognized multiple rebuttal pathways: an employer may show the employee “did not in fact receive such a diagnosis,” or demonstrate the diagnosis is “invalid or not credible,” and may rebut “with a competing diagnosis or with other evidence.” This language directly undercut the WCCA’s restrictive interpretation.
  • Linnell v. City of St. Louis Park, 305 N.W.2d 599 (Minn. 1981), and Jerabek v. Teleprompter Corp., 255 N.W.2d 377 (Minn. 1977): invoked to describe the strength of rebuttable presumptions in workers’ compensation—an employer must “make a strong showing” and present “substantial evidence to rebut the presumption.” These cases reinforce that the statutory presumption changes burdens, but they do not dictate that only a particular evidentiary form (like an IPE) is acceptable.

B. Expert evidence, DSM criteria, and the judge’s role

  • Tea v. Ramsey Cnty., 5 N.W.3d 114 (Minn. 2024): the Court used Tea to clarify that compensation judges must make findings about DSM criteria “in relation to evidence offered by [a] medical professional,” not by independently applying DSM criteria themselves. This helped the Court explain why a compensation judge may consider expert testimony even when it uses an older DSM edition—so long as the judge is weighing professional evidence rather than performing lay diagnostic analysis.
  • Peterson v. City of Minneapolis, 23 N.W.3d 582 (Minn. 2025): discussed in connection with “lifetime PTSD.” The Court noted it had previously declined to “endorse any interpretation of the DSM” due to the applicable standard of review, and it similarly declined to validate or reject “lifetime PTSD” here. Peterson reinforces judicial restraint where disputes are essentially battles of experts and credibility, absent a pure legal issue.

C. Standard of review and the WCCA’s limited authority to substitute findings

  • Lagasse v. Horton, 982 N.W.2d 189 (Minn. 2022): supplied the controlling standard for WCCA review. The WCCA may set aside a compensation judge’s findings “only if there is no evidence in the record that a reasonable mind might accept as adequate” to support them, and only then may the WCCA make substitute findings. The Supreme Court used Lagasse to show the WCCA’s reversal was improper because it excluded evidence on an erroneous legal premise.

D. Statutory interpretation methodology

  • Johnson v. Concrete Treatments, Inc., 7 N.W.3d 119 (Minn. 2024): cited for plain-meaning/statutory ambiguity principles—apply plain meaning when unambiguous; ambiguity exists only if multiple reasonable interpretations exist.
  • State v. Powers, 962 N.W.2d 853 (Minn. 2021); Save Lake Calhoun v. Strommen, 943 N.W.2d 171 (Minn. 2020); State v. Balsley, 10 N.W.3d 671 (Minn. 2024): used to justify consulting ordinary meaning and reading words in statutory context rather than isolation.
  • Poehler v. Cincinnati Ins. Co., 899 N.W.2d 135 (Minn. 2017), and Goodman v. Best Buy, Inc., 777 N.W.2d 755 (Minn. 2010): support the Court’s use of dictionary definitions (including Black’s Law Dictionary) to determine ordinary meaning. These cases enabled the Court’s conclusion that “edition” naturally encompasses a later-published text revision with substantive changes/additions.

E. Remand practice for unaddressed issues

  • Bjornson v. McNeilus Companies, Inc., 20 N.W.3d 2 (Minn. 2025), and Gamble v. Twin Cities Concrete Products, 852 N.W.2d 245 (Minn. 2014): cited for remanding to the WCCA when it did not reach an issue presented.
  • State v. Hall, 931 N.W.2d 737 (Minn. 2019), and Bahr v. Boise Cascade Corp., 766 N.W.2d 910 (Minn. 2009): non-workers’ compensation examples supporting the same remand principle.
  • State Dep't of Lab. & Indus. v. Wintz Parcel Drivers, Inc., 558 N.W.2d 480 (Minn. 1997): cited to support declining to decide inadequately briefed issues—here, a timing question about whether a diagnosis issued after publication of a new DSM edition “counts” if the evaluation used the prior edition.

3.2. Legal Reasoning

A. “Most recently published edition” includes DSM text revisions

The Court’s first holding is a straightforward textual and contextual interpretation of Minn. Stat. § 176.011, subd. 15(d). The statute defines PTSD as “the condition as described in the most recently published edition” of the DSM. The City argued “edition” refers only to the numeric edition (DSM-5), not to the text revision (DSM-5-TR).

The Court rejected that narrow reading for several reasons:

  • The statute emphasizes “published” edition, pointing to the most recent DSM publication, not merely the last numeric label.
  • The American Psychiatric Association’s longstanding publication practice includes issuing a text revision between numeric editions (e.g., DSM-IV-TR), suggesting “edition” sensibly covers the TR.
  • Dictionary definitions of “edition” commonly include versions issued at different times with changes or additions—consistent with a “text revision” being an “edition.”
  • The APA itself describes DSM-5-TR as an “edition,” reinforcing the contextual meaning within this specialized statutory reference.

This portion of the opinion creates a clear compliance rule: for Minnesota workers’ compensation PTSD claims, DSM “edition” includes the text-revision publication; DSM-5-TR superseded DSM-5 upon publication for purposes of the statutory definition.

B. Rebuttal is not limited to an IPE (and not limited to one evidentiary form)

The WCCA treated the DSM definition as establishing a rigid rebuttal method: the only “substantial factors” that can rebut the presumption must come through an employer IPE using the most recent DSM edition. The Supreme Court found this inconsistent with the statutory text and prior case law.

Key reasoning points:

  • Subdivision 15(e) states the presumption “may be rebutted only by substantial factors,” but it does not specify how those substantial factors must be proven.
  • The Court treated Juntunen v. Carlton County as controlling: employers may rebut via evidence of fabrication, or by demonstrating invalidity/credibility problems, and can do so “with a competing diagnosis or with other evidence.”
  • The Court offered practical examples: an expert critique may undermine methodology or identify errors without needing to re-examine the employee; and some rebuttal may come from non-expert proof (e.g., fabricated records).

The doctrinal takeaway is that “substantial factors” is an evidentiary sufficiency standard, not a prescribed procedural pathway.

C. An outdated-DSM IPE is not categorically inadmissible; it is generally a weight issue

Having rejected the WCCA’s “IPE-only” view, the Court also rejected the WCCA’s exclusionary rule that a compensation judge cannot consider an employer’s expert opinion if it uses an older DSM edition.

The Court grounded this conclusion in:

  • The statute’s silence: nothing in subdivision 15(e) commands exclusion of evidence for DSM-version mismatch.
  • The workers’ compensation evidentiary framework: Minn. Stat. § 176.411, subd. 1 provides compensation judges are not bound by common-law or statutory rules of evidence, supporting a more flexible admissibility approach.
  • The functional question in rebuttal: whether the employer’s proof meaningfully undermines the “validity or credibility” of the diagnosis that triggered the presumption (language drawn from Juntunen). DSM mismatch may reduce persuasiveness, but does not automatically negate relevance.

Importantly, the Court did not say outdated-DSM evidence will usually be enough to rebut; it said only that it must be considerable and assigned appropriate probative weight by the factfinder.

D. Application: why the WCCA exceeded its role in setting aside the rebuttal finding

The Supreme Court concluded the WCCA set aside the compensation judge’s rebuttal finding for a legally erroneous reason: it treated Dr. Young’s DSM-5 reliance as a basis to exclude his opinion entirely and then declared there was “no evidence” to rebut the presumption.

Under Lagasse v. Horton, the WCCA may set aside findings only when no reasonable mind could accept the evidence as adequate. Here, once Dr. Young’s testimony and critique are properly considered (even with DSM-5 limitations), there was at least some evidence that could support the compensation judge’s finding.

The Court also noted the WCCA’s approach was too narrow because Dr. Young’s contribution was not limited to “DSM-5 vs. DSM-5-TR” labeling: he also offered critiques of Dr. Aleknavicius’s DSM-5 diagnosis methodology and testified about the DSM-5-TR-based “lifetime PTSD” framing. Those critiques could be probative in undermining credibility/validity irrespective of DSM labeling.

3.3. Impact

A. Clarified statutory compliance as DSM updates occur

The decision provides a bright-line interpretive rule: text revisions are part of the “most recently published edition”. This matters for future disputes whenever the APA publishes revisions between numeric editions. Claimants, employers, and evaluators must track publication dates, not just edition numbers.

B. Broader rebuttal toolkit for employers—and a caution about proof quality

By rejecting the WCCA’s IPE-only requirement, the Court confirms that rebuttal can be built from multiple categories of proof: competing diagnoses, methodological critiques, record-based impeachment, or other evidence. This will likely:

  • increase litigation over what qualifies as “substantial factors,” especially when employers use record reviews rather than full examinations; and
  • shift focus to evidentiary foundation and persuasiveness rather than formalistic admissibility rules.

At the same time, the Court signaled that relying on an outdated DSM generally reduces probative value; the safest practice for employers remains using the most recent DSM publication when feasible.

C. Reinforces deference to compensation judges and narrows WCCA substitution

The opinion reaffirms that the WCCA cannot set aside findings by excluding evidence on a mistaken legal theory and then substituting its own conclusion. This strengthens the centrality of the compensation judge as the primary evaluator of expert credibility and evidentiary weight in PTSD presumption cases.

D. Leaves open important questions for future litigation

The Court explicitly avoided deciding:

  • whether the presumption applies only to causation or also substantively to the validity of the diagnosis (the parties treated it as broader, but the Court noted uncertainty); and
  • the validity of “lifetime PTSD” as a diagnostic/legal concept under the statute.

Those unresolved issues remain fertile ground for future appellate clarification, particularly as DSM interpretive disputes continue to arise in occupational PTSD claims.

4. Complex Concepts Simplified

  • PTSD presumption (Minn. Stat. § 176.011, subd. 15(e)): For certain first-responder/public-safety jobs, once a qualifying PTSD diagnosis is presented (and no prior PTSD diagnosis exists), the law presumes the PTSD is work-related (“due to the nature of employment”). The employer must then overcome that presumption.
  • “Substantial factors” rebuttal: This is not a particular document type (like an IPE). It is a standard meaning the employer must produce meaningful, weighty evidence that undercuts the presumption—e.g., showing the diagnosis is not credible or not valid.
  • IPE (Independent Psychological Evaluation): A psychological examination typically obtained by the employer/insurer to assess diagnosis and causation. Helpful evidence, but not the only legally permissible rebuttal method.
  • DSM-5 vs. DSM-5-TR: “TR” is a “text revision” published later than DSM-5. The Court held that when the statute says “most recently published edition,” it includes the TR publication.
  • Admissibility vs. weight: “Admissibility” asks whether evidence can be considered at all; “weight” asks how persuasive it is. The Court held DSM mismatch affects weight (how convincing), not automatic exclusion.
  • Foundation (in expert testimony): Whether an expert had sufficient basis—records reviewed, reliable methods, coherent reasoning—to offer an opinion. The Supreme Court did not decide the foundation dispute here; it remanded for the WCCA to address it.
  • WCCA review limits: The WCCA may overturn factual findings only if no reasonable person could accept the supporting evidence. It cannot simply re-weigh evidence or exclude it based on an erroneous legal rule and then substitute its own finding.

5. Conclusion

The Minnesota Supreme Court’s decision establishes three practical rules for PTSD presumption litigation under Minn. Stat. § 176.011, subd. 15(d)–(e):

  1. “Most recently published edition” includes DSM text revisions (DSM-5-TR supersedes DSM-5 upon publication for statutory purposes).
  2. Employers are not confined to an IPE to rebut the PTSD presumption; rebuttal may be shown through any “substantial factors,” including competing diagnoses and other evidence undermining validity or credibility.
  3. An outdated-DSM IPE is not categorically excluded; DSM mismatch is generally a question of probative weight for the compensation judge, not a legal bar to consideration.

By reversing the WCCA’s exclusionary approach and remanding for unresolved issues, the Court reinforced both the flexibility of rebuttal proof and the primacy of the compensation judge’s role in weighing expert evidence—while also clarifying that DSM “edition” is publication-sensitive and includes text revisions.