No. 23–43, David Duff, II v. Kanawha County Commission. FILED April 22, 2024 released at 3:00 p.m. Walker, Justice, concurring: C. CASEY FORBES, CLERK SUPREME COURT OF APPEALS OF WEST VIRGINIA
Petitioner David Duff, II, was working as a Kanawha County Deputy Sheriff
when he suffered a compensable back injury while lifting a bomb detector robot out of a
truck. Medical records show that before sustaining this injury, Mr. Duff received
chiropractic treatment for back pain and imaging studies revealed evidence of degenerative
disc disease. The claims examiner authorized lumbar fusion surgery; after Mr. Duff
reached his maximum degree of medical improvement, he was evaluated to determine if
he qualified for a permanent partial disability award. The examining physicians agreed
that Mr. Duff had a 25% impairment for his lumbar spine but disagreed on whether this
impairment rating should be apportioned between the compensable injury and Mr. Duff’s
preexisting back condition. I join the majority opinion, which holds that under West
Virginia Code § 23-4-9b (2003), apportionment was not justified in this case because the
evidence failed to establish “definitely ascertainable impairment” related to Mr. Duff’s
preexisting condition. I write separately to emphasize two points, and to express my
respectful disagreement with the dissenting opinion.
1 My first point is that the Legislature used the word “impairment” eight times
in West Virginia Code § 23-4-9b, 1 and we must presume that it was aware of the word’s
significance in workers’ compensation law. 2 “Impairment” in this context is a medical
assessment regarding the loss of use of a body part that impacts a claimant’s ability to
1 See W. Va. Code § 23-4-9b (“Where an employee has a definitely ascertainable impairment resulting from an occupational or a nonoccupational injury, disease or any other cause, whether or not disabling, and the employee thereafter receives an injury in the course of and resulting from his or her employment, unless the subsequent injury results in total permanent disability within the meaning of section one, article three of this chapter, the prior injury, and the effect of the prior injury, and an aggravation, shall not be taken into consideration in fixing the amount of compensation allowed by reason of the subsequent injury. Compensation shall be awarded only in the amount that would have been allowable had the employee not had the preexisting impairment. Nothing in this section requires that the degree of the preexisting impairment be definitely ascertained or rated prior to the injury received in the course of and resulting from the employee’s employment or that benefits must have been granted or paid for the preexisting impairment. The degree of the preexisting impairment may be established at any time by competent medical or other evidence. Notwithstanding the foregoing provisions of this section, if the definitely ascertainable preexisting impairment resulted from an injury or disease previously held compensable and the impairment had not been rated, benefits for the impairment shall be payable to the claimant by or charged to the employer in whose employ the injury or disease occurred. The employee shall also receive the difference, if any, in the benefit rate applicable in the more recent claim and the prior claim.”) (emphasis added). 2 See Syl. Pt. 3, Osborne v. U.S., 211 W. Va. 667, 567 S.E.2d 677 (2002) (“It is presumed the legislature had a purpose in the use of every word, phrase and clause found in a statute and intended the terms so used to be effective, wherefore an interpretation of a statute which gives a word, phrase or clause thereof no function to perform, or makes it, in effect, a mere repetition of another word, phrase or clause thereof, must be rejected as being unsound, if it be possible so to construe the statute as a whole, as to make all of its parts operative and effective.”) (quoting Syl. Pt. 7, Ex parte Watson, 82 W. Va. 201, 95 S.E. 648 (1918)).
2 function. 3 West Virginia is in the majority of jurisdictions that utilize the American
Medical Association Guides to the Evaluation of Permanent Impairment when determining
the level of a claimant’s permanent impairment in a workers’ compensation case. 4
Specifically,
“[p]ermanent impairment” means a permanent alteration of an individual’s health status and is assessed by medical means and is a medical issue. An impairment is a deviation from normal in a body part or organ system and its functioning. An injured worker’s degree of permanent whole body medical impairment is to be determined in keeping with the determination of whole person permanent impairment as set forth in the applicable Guides. For the purposes of this Rule, the Guides’ [Guides to the Evaluation of Permanent Impairment (4th ed. 1993), as published by the American Medical Association] use of the term “whole person” impairment is the equivalent of the term “whole body” impairment.[5]
Our workers’ compensation statutes provide that when a claimant has
reached his maximum degree of medical improvement, 6 he is evaluated by a physician to
3 100 C.J.S. Workers’ Compensation § 612 (March 2024 update); see also 82 Am. Jur. 2d Workers’ Compensation § 357 (Feb. 2024 update) (“It has been held that in the workers’ compensation context, the term ‘impairment’ is a medical assessment while the term ‘disability’ is a legal issue.”).
1 Arthur Larson, Lex K. Larson, Thomas A. Robinson, Larson’s Workers’ 4
Compensation § 90.03 at 90-7 (Rev. Ed. 2023) (hereafter Larson’s). 5 W. Va. C.S.R. § 85-20-3.10 (2006). 6 See W. Va. Code § 23-4-7a(c) (2005) (“When the authorized treating physician concludes that the claimant has either reached his or her maximum degree of improvement or is ready for disability evaluation, or when the claimant has returned to work, the (continued . . .) 3 determine whether he is entitled to permanent partial disability benefits. 7 To qualify for a
permanent partial disability award, a claimant must submit competent evidence to show
whole body medical impairment under the AMA Guides. The examining physicians in this
case agree that Mr. Duff has a whole person impairment of 25% under the AMA Guides for
his diagnosis of lumbar sprain, status post L3-L4 fusion surgery, which places him in
Category V of Rule 20.
The only issue here is whether apportionment of benefits is appropriate under
West Virginia Code § 23-4-9b considering Mr. Duff’s preexisting symptomatic conditions.
And that question turns on whether competent medical evidence shows preexisting
ascertainable impairment. As one court explained, “[s]omething other than a pre-existing
medical condition must be shown in order to invoke the provisions relating to
apportionment. Asymptomatic conditions or even symptomatic conditions that have not
had a demonstrable adverse impact on the claimant’s wage-earning capacity, even if
authorized treating physician may recommend a permanent partial disability award for residual impairment relating to and resulting from the compensable injury[.]”). 7 See W. Va. Code 23-4-6(i) (2005) (providing, in part, that “with the exception of those injuries provided for in subdivision (f) of this section [when injury results in the total loss by severance of body part(s)] . . . the degree of permanent disability other than permanent total disability shall be determined exclusively by the degree of whole body medical impairment that a claimant has suffered. . . .
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No. 23–43, David Duff, II v. Kanawha County Commission. FILED April 22, 2024 released at 3:00 p.m. Walker, Justice, concurring: C. CASEY FORBES, CLERK SUPREME COURT OF APPEALS OF WEST VIRGINIA
Petitioner David Duff, II, was working as a Kanawha County Deputy Sheriff
when he suffered a compensable back injury while lifting a bomb detector robot out of a
truck. Medical records show that before sustaining this injury, Mr. Duff received
chiropractic treatment for back pain and imaging studies revealed evidence of degenerative
disc disease. The claims examiner authorized lumbar fusion surgery; after Mr. Duff
reached his maximum degree of medical improvement, he was evaluated to determine if
he qualified for a permanent partial disability award. The examining physicians agreed
that Mr. Duff had a 25% impairment for his lumbar spine but disagreed on whether this
impairment rating should be apportioned between the compensable injury and Mr. Duff’s
preexisting back condition. I join the majority opinion, which holds that under West
Virginia Code § 23-4-9b (2003), apportionment was not justified in this case because the
evidence failed to establish “definitely ascertainable impairment” related to Mr. Duff’s
preexisting condition. I write separately to emphasize two points, and to express my
respectful disagreement with the dissenting opinion.
1 My first point is that the Legislature used the word “impairment” eight times
in West Virginia Code § 23-4-9b, 1 and we must presume that it was aware of the word’s
significance in workers’ compensation law. 2 “Impairment” in this context is a medical
assessment regarding the loss of use of a body part that impacts a claimant’s ability to
1 See W. Va. Code § 23-4-9b (“Where an employee has a definitely ascertainable impairment resulting from an occupational or a nonoccupational injury, disease or any other cause, whether or not disabling, and the employee thereafter receives an injury in the course of and resulting from his or her employment, unless the subsequent injury results in total permanent disability within the meaning of section one, article three of this chapter, the prior injury, and the effect of the prior injury, and an aggravation, shall not be taken into consideration in fixing the amount of compensation allowed by reason of the subsequent injury. Compensation shall be awarded only in the amount that would have been allowable had the employee not had the preexisting impairment. Nothing in this section requires that the degree of the preexisting impairment be definitely ascertained or rated prior to the injury received in the course of and resulting from the employee’s employment or that benefits must have been granted or paid for the preexisting impairment. The degree of the preexisting impairment may be established at any time by competent medical or other evidence. Notwithstanding the foregoing provisions of this section, if the definitely ascertainable preexisting impairment resulted from an injury or disease previously held compensable and the impairment had not been rated, benefits for the impairment shall be payable to the claimant by or charged to the employer in whose employ the injury or disease occurred. The employee shall also receive the difference, if any, in the benefit rate applicable in the more recent claim and the prior claim.”) (emphasis added). 2 See Syl. Pt. 3, Osborne v. U.S., 211 W. Va. 667, 567 S.E.2d 677 (2002) (“It is presumed the legislature had a purpose in the use of every word, phrase and clause found in a statute and intended the terms so used to be effective, wherefore an interpretation of a statute which gives a word, phrase or clause thereof no function to perform, or makes it, in effect, a mere repetition of another word, phrase or clause thereof, must be rejected as being unsound, if it be possible so to construe the statute as a whole, as to make all of its parts operative and effective.”) (quoting Syl. Pt. 7, Ex parte Watson, 82 W. Va. 201, 95 S.E. 648 (1918)).
2 function. 3 West Virginia is in the majority of jurisdictions that utilize the American
Medical Association Guides to the Evaluation of Permanent Impairment when determining
the level of a claimant’s permanent impairment in a workers’ compensation case. 4
Specifically,
“[p]ermanent impairment” means a permanent alteration of an individual’s health status and is assessed by medical means and is a medical issue. An impairment is a deviation from normal in a body part or organ system and its functioning. An injured worker’s degree of permanent whole body medical impairment is to be determined in keeping with the determination of whole person permanent impairment as set forth in the applicable Guides. For the purposes of this Rule, the Guides’ [Guides to the Evaluation of Permanent Impairment (4th ed. 1993), as published by the American Medical Association] use of the term “whole person” impairment is the equivalent of the term “whole body” impairment.[5]
Our workers’ compensation statutes provide that when a claimant has
reached his maximum degree of medical improvement, 6 he is evaluated by a physician to
3 100 C.J.S. Workers’ Compensation § 612 (March 2024 update); see also 82 Am. Jur. 2d Workers’ Compensation § 357 (Feb. 2024 update) (“It has been held that in the workers’ compensation context, the term ‘impairment’ is a medical assessment while the term ‘disability’ is a legal issue.”).
1 Arthur Larson, Lex K. Larson, Thomas A. Robinson, Larson’s Workers’ 4
Compensation § 90.03 at 90-7 (Rev. Ed. 2023) (hereafter Larson’s). 5 W. Va. C.S.R. § 85-20-3.10 (2006). 6 See W. Va. Code § 23-4-7a(c) (2005) (“When the authorized treating physician concludes that the claimant has either reached his or her maximum degree of improvement or is ready for disability evaluation, or when the claimant has returned to work, the (continued . . .) 3 determine whether he is entitled to permanent partial disability benefits. 7 To qualify for a
permanent partial disability award, a claimant must submit competent evidence to show
whole body medical impairment under the AMA Guides. The examining physicians in this
case agree that Mr. Duff has a whole person impairment of 25% under the AMA Guides for
his diagnosis of lumbar sprain, status post L3-L4 fusion surgery, which places him in
Category V of Rule 20.
The only issue here is whether apportionment of benefits is appropriate under
West Virginia Code § 23-4-9b considering Mr. Duff’s preexisting symptomatic conditions.
And that question turns on whether competent medical evidence shows preexisting
ascertainable impairment. As one court explained, “[s]omething other than a pre-existing
medical condition must be shown in order to invoke the provisions relating to
apportionment. Asymptomatic conditions or even symptomatic conditions that have not
had a demonstrable adverse impact on the claimant’s wage-earning capacity, even if
authorized treating physician may recommend a permanent partial disability award for residual impairment relating to and resulting from the compensable injury[.]”). 7 See W. Va. Code 23-4-6(i) (2005) (providing, in part, that “with the exception of those injuries provided for in subdivision (f) of this section [when injury results in the total loss by severance of body part(s)] . . . the degree of permanent disability other than permanent total disability shall be determined exclusively by the degree of whole body medical impairment that a claimant has suffered. . . . The workers’ compensation commission shall adopt standards for the evaluation of claimants and the determination of a claimant’s degree of whole body medical impairment. Once the degree of medical impairment has been determined, that degree of impairment shall be the degree of permanent partial disability that shall be awarded to the claimant. . . .”).
4 proven, do not require an apportionment of benefits.” 8 Under West Virginia Code § 23-4-
9b, any preexisting impairment does not have to be “definitely ascertained or rated prior
to” the compensable injury; the degree of the impairment “may be established at any time
by competent medical or other evidence.” 9 But it must be “definitely ascertainable[.]” 10
Simply stated, to be apportionable, “an impairment must have been independently
producing some degree of disability before the accident, and must be continuing to operate
as a source of disability after the accident.” 11 Other courts have recognized that under the
“AMA Guides, apportionment is only appropriate when a prior impairment, whether
occupational or nonoccupational, has been sufficiently identified, treated, or evaluated to
be rated as a contributing factor in the subsequent disability.” 12
Bruce Guberman, M.D., explained in his report that “there is no objective
medical, logical rationale for determining any specific portion of the impairment to
8 Entergy Mississippi, Inc. v. Robinson, 777 So.2d 53, 57 (Miss. Ct. App. 2000). 9 W. Va. Code § 23-4-9b (emphasis added). 10 Id. 11 Larson’s § 90.04[3] at 90-10. 12 Askew v. Indus. Claim Appeals Off. of the State of Colo., 927 P.2d 1333, 1338 (Colo. 1996) (footnote omitted); see also Whitney v. Pregis Corporation, 175 A.D.3d 1731 (N.Y.S. 3d Dep’t 2019) (stating that, as a general rule, apportionment between a compensable injury and a preexisting condition for the purpose of a workers’ compensation claim is not applicable as a matter of law when the claimant was able to effectively perform his job duties at the time of the work-related accident despite the preexisting condition).
5 apportion for any preexisting conditions.” Dr. Guberman noted that the preexisting
condition did not interfere with Mr. Duff’s activities of daily living, nor did it interfere with
his ability to work. Dr. Guberman is the only physician who addressed the issue of
apportionment using the AMA Guides. 13
On the other hand, Prasadarao B. Mukkamala, M.D., stated in his report that
Mr. Duff’s 25% whole person impairment “is resulting from the preexisting degenerative
spondyloarthropathy as well as the compensable injury” and apportioned 12% to the
preexisting condition. But Dr. Mukkamala offers no explanation for how he arrived at the
12% whole person impairment rating; it was an arbitrary assessment lacking foundation in
the AMA Guides. He does not identify any medical records that predate the compensable
injury that document range of motion findings or symptoms of numbness or weakness due
to low back pain that would show preexisting impairment. The dissent references medical
records—apparently unreviewed by Dr. Mukkamala but discussed by the Workers’
Compensation Board of Review—that demonstrate, at best, a preexisting condition with
so little objective evaluative evidence that impairment cannot be ascertained at all, much
less to what degree. Because the employer failed to offer competent, objective medical
evidence in this case to support apportionment under West Virginia Code § 23-4-9b, the
13 David L. Soulsby, M.D. also evaluated Mr. Duff, at the request of the employer, but the Workers’ Compensation Board of Review disregarded this report under W. Va. C.S.R. § 85-20-66.2 because Dr. Soulsby did not submit a completed back examination form. So, his report should not factor into this Court’s analysis.
6 majority properly holds that Mr. Duff is entitled to the full 25% permanent partial disability
award in this claim.
Second, I emphasize that states enact apportionment statutes with the intent
to relieve the employer of the burden of paying for disabilities that are not attributable to
the work-related accident for which the entitlement to workers’ compensation arises. Even
though West Virginia Code § 23-4-9b does not identify which party bears the burden of
proof when it comes to apportionment, the majority rightly places that burden on the
employer, as the proponent of the benefit reduction. As the majority notes, other “[c]ourts
have offered several convincing rationales for allocating the burden of proof in an
apportionment case to the employer[.]” 14 Apportionment is akin to an affirmative defense,
and the employer has the burden of proof to establish entitlement to the reduction of the
claimant’s permanent partial disability benefits. 15
Finally, I note my respectful disagreement with the dissent’s conclusion that
“competent medical evidence in the record demonstrates both the presence and degree of
14 Majority opinion at footnote 6 (citing cases). 15 See generally, Rowe v. Sisters of Pallottine Missionary Soc’y, 211 W. Va. 16, 23, 560 S.E.2d 491, 498 (2001) (“In any action—medical malpractice or otherwise—the defendant carries the initial burden of proving an affirmative defense such as comparative negligence.”); see also Giaimo v. Fla. Autosport, Inc., 154 So. 3d 385, 387 (Fla. Dist. Ct. App. 2014) (“Apportionment is an affirmative defense, and the [employer] had the burden of proof to establish entitlement to the reduction in benefits.”).
7 [Mr. Duff’s] definitely ascertainable impairment.” While the dissent correctly contends
that West Virginia Code § 23-4-9b states that “[t]he degree of the preexisting impairment
may be established at any time by competent medical or other evidence[,]” I disagree that
the evidence adduced here established the impairment. The medical evidence shows the
presence of Mr. Duff’s preexisting symptomatic back problems, along with a goal of
improving his range of motion. But there is no competent evidence that establishes the
degree of impairment related to his preexisting condition. It was simply not sufficiently
documented to be rated and ascertained under the AMA Guides when he was examined by
physicians in this claim.