United States Department of Labor

Employees’ Compensation Appeals Board

__________________________________________

J.C., Appellant

and

U.S. POSTAL SERVICE, PROCESSING & 

DISTRIBUTION CENTER, San Francisco, CA, 

Employer

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Docket No. 21-1003

Issued: September 27, 2023

Appearances: Case Submitted on the Record

Appellant, pro se

Office of Solicitor, for the Director

DECISION AND ORDER

Before:

ALEC J. KOROMILAS, Chief Judge

PATRICIA H. FITZGERALD, Deputy Chief Judge

JANICE B. ASKIN, Judge

JURISDICTION

On June 21, 2021 appellant filed a timely appeal from a May 17, 2021 merit decision of 

the Office of Workers’ Compensation Programs (OWCP). Pursuant to the Federal Employees’

Compensation Act1(FECA) and 20 C.F.R. §§ 501.2(c) and 501.3, the Board has jurisdiction over 

the merits of this case.2

1

5 U.S.C. § 8101 et seq.

2 The Board notes that, following the May 17, 2021 decision, OWCP received additional evidence and appellant 

submitted additional evidence on appeal. However, the Board’s Rules of Procedureprovides: “The Board’s review 

of a case is limited to the evidence in the case record that was before OWCP at the time of its final decision. Evidence 

not before OWCP will not be considered by the Board for the first time on appeal.” 20 C.F.R. § 501.2(c)(1). Thus, 

the Board is precluded from reviewing this additional evidence for the first time on appeal. Id.
2

ISSUE

The issue is whether appellant has met his burden of proof to establish bilateral carpal 

tunnel syndrome causally related to the accepted factors of his federal employment.

FACTUAL HISTORY

On October 29, 2020 appellant, then a 61-year-old maintenance mechanic, filed an 

occupational disease claim (Form CA-2) alleging that he developed bilateral carpal tunnel 

syndrome due to factors of his federal employment, including daily use of power tools with 

repetitive movements. He noted that he first became aware of his condition and its relationship to 

his federal employment on August 26, 2020. Appellant did not stop work. 

In a September 1, 2020 patient questionnaire, appellant contended that his work duties over 

the last four years, which required the use of power tools such as drills, hammer drills, grinders, 

and sledgehammers, caused his carpal tunnel syndrome. He explained that he used power tools 

for at least four hours a day. Appellant noted that he experienced numbness in the tip of his fingers 

and reduced grip strength, particularly at the end of his working day. He also had pain in his palms, 

as well as pain in his hands, and wrists. Appellant indicated that both hands were affected, his 

right worse than left. 

In a September 1, 2020 work status report, Dr. Latifat T. Apatira, a physician Boardcertified in internal medicine, noted appellant’s date of injury as August 31, 2020 and provided 

work restrictions limiting repetitive and forceful gripping, grasping, and pinching activities, 

especially with the hands in awkward positions. 

In September 15, 2020 work status reports, Dr. Apatira diagnosed bilateral hand pain and 

paresthesia and right forearm pain. She again provided work restrictions. In an after-visit 

summary of even date, Dr. Apatira reiterated her diagnoses. 

In an October 15, 2020 work status report, Dr. Apatira diagnosed bilateral hand paresthesia 

and pain and provided work restrictions. 

In an October 18, 2020 statement, appellant attributed his bilateral hand pain to daily work 

duties performed during the last four years. He noted that he experienced numbness in his hands 

as well as difficulty in using power tools. Appellant explained that his work duties required daily 

use of power tools, including hammer drills, reciprocate power saws, and power grinders. He 

asserted that the repetitive impact of hammering, grasping, and torquing eventually caused his 

condition. Appellant contended that both of his hands were affected by his employment and noted 

that he experienced numbness, tingling sensation, and pain in his fingers, as well as weakness and 

inability of grasping things.

On October 22, 2020 the employing establishment offered appellant light-duty assignment. 

In an October 30, 2020 letter, the employing establishment controverted appellant’s claim, 

asserting that his work duties since 2016 did not require daily use of power tools. 
3

In a November 5, 2020 development letter, OWCP informed appellant of the deficiencies 

of his claim. It advised him of the type of factual and medical evidence necessary to establish his

claim and provided a factual questionnaire for his completion. By separate development letter of 

even date, OWCP requested that the employing establishment provide comments from a 

knowledgeable supervisor regarding his allegations. It afforded both parties 30 days to respond. 

In an undated response, the employing establishment noted that appellant’s duties included 

installing, repairing, and replacing locks for 5 to 10 work orders each day. It contended that most 

of these activities did not require repetitive actions. The employing establishment indicated that 

the equipment appellant used included wire cutters, drills, power grinders, and sledgehammers. It 

submitted a copy of his position description as a building equipment mechanic. 

In a November 10, 2020 report, Dr. Apatira evaluated appellant for bilateral hand and 

forearm pain and numbness. She noted that he attributed his symptoms to the “chronic use of 

various vibratory power tools.” Dr. Apatira indicated that appellant had a history of numbness in 

the tips of his right fingers when he underwent chemotherapy treatment from August to 

November 2019. She diagnosed bilateral carpal tunnel syndrome, paresthesia, and hand pain. 

Dr. Apatira asserted that appellant’s symptoms were more consistent with carpal tunnel syndrome

as opposed to “arm vibration syndrome on baseline nonindustrial drug-induced paresthesia.” She 

related, “In my opinion, the underlying cause of [appellant’s] symptoms is chronic drug-induced 

paresthesia, a nonindustrial condition. However, but for the stated mechanism, specifically [the] 

use of vibratory tools, this preexisting condition would not have become disabling or needed 

medical treatment....” Dr. Apatira also provided work restrictions. She provided similar findings

in a progress report of even date. 

Appellant underwent physical therapy treatment on November 12, 2020. 

In a November 24, 2020 response to OWCP’s development questionnaire, appellant 

described his employment activities in detail, including the use of a power hammer drill, a short 

sledgehammer, a socket, and a power screwdriver, for hours each week. He contended that the 

use of his both hands to hold, grip, and torque while using power tools with vibrating and 

reciprocating movements ultimately caused his conditions in his fingers, hands, and wrists. 

Appellant acknowledged that his duties varied, but that he still used power tools to perform his 

daily maintenance tasks. He submitted a position description of his duties as a letter box mechanic 

which required use of power tools. 

In December 22, 2020 reports, Dr. Apatira reiterated appellant’s history and her prior 

findings. She again diagnosed bilateral carpal tunnel syndrome and chronic paresthesia, and again 

opined that his symptoms were due to chronic use of various vibratory power tools. Dr. Apatira 

opined that the use of vibratory tools aggravated appellant’s underlying condition. 

By decision dated January 26, 2021, OWCP denied appellant’s occupational disease claim, 

finding that the medical evidence of record was insufficient to establish causal relationship 

between his diagnosed bilateral carpal tunnel syndrome and the accepted factors of his federal 

employment. 
4

OWCP subsequently received a September 15, 2020 progress reportfrom Dr. Apatira, who

again reported that appellant felt that his symptoms were due to chronic use of various vibratory 

power tools. Dr. Apatira diagnosed bilateral carpal tunnel syndrome and paresthesia and reiterated 

her opinion that the use of vibratory tools aggravated his underlying chronic no nindustrial and 

drug-induced paresthesia. 

In an October 22, 2020 report, Dr. Apatira diagnosed bilateral hand pain and paresthesia 

and right forearm pain. She again opined that the use of vibratory tools aggravated appellant’s 

underlying chronic nonindustrial and drug-induced paresthesia. 

In a December 3, 2020 report, Dr. Apatira reiterated the history of injury and indicated that 

appellant had numbness previously associated with chemotherapy treatment from August to 

November 2019. She diagnosed bilateral carpal tunnel syndrome, bilateral hand pain, and 

paresthesia and again opined that the use of vibratory tools aggravated his underlying condition. 

In a December 22, 2020 report, Dr. Apatira reiterated her prior findings and diagnosed bilateral 

carpal tunnel syndrome and paresthesia. 

In January 12, 2021 reports, Dr. Apatira reiterated her prior findings and diagnoses. She 

again opined that the use of vibratory tools aggravated appellant’s underlying chronic 

nonindustrial and drug-induced paresthesia. 

In a January 21, 2021 form report, Dr. Apatira noted that electrodiagnostic testing 

performed on January 15, 2021 had demonstrated mild-to-severe bilateral carpal tunnel syndrome. 

She again diagnosed bilateral carpal tunnel syndrome and paresthesia. 

In a February 1, 2021 progress report, Dr. Apatira reiterated her findings and diagnoses. 

She again opined that appellant felt that his symptoms were due to chronic use of various vibratory 

power tools. In a February 2, 2021 form report, Dr. Apatira diagnosed paresthesia. 

In a form report dated February 4, 2021, Dr. Apatira provided appellant’s history of injury, 

her prior findings and diagnoses. She noted that he felt that his symptoms were due to chronic use 

of various vibratory power tools. In her narrative report, Dr. Apatira again opined that the use of 

vibratory tools aggravated appellant’s underlying condition. She recommended carpal tunnel 

release. 

On March 2, 2021 appellant requested reconsideration of OWCP’s January 26, 2021 

decision. 

In March 16, 2021 reports, Dr. Apatira reiterated appellant’s history of injury, her findings, 

her diagnoses, and her opinion that the use of vibratory tools aggravated his underlying condition. 

In a March 18, 2021 medical report, Dr. Varun K. Gajendran, an orthopedic surgeon,

diagnosed right carpal tunnel syndrome and indicated that appellant underwent right carpal tunnel 

release on that date. 

In a March 31, 2021 report, a physician assistant noted that appellant returned for follow

up after his surgery on March 18, 2021. 
5

In March 31 and April 20, 2021 reports, Dr. Apatira reiterated appellant’s history of injury, 

findings, diagnoses, and opinion. She noted that he underwent a right carpal tunnel release on 

March 18, 2021 and was waiting for authorization for postoperative therapy. 

In April 20, 2021 reports, Dr. Apatira reiterated her findings, diagnoses, and opinion. 

By decision dated May 17, 2021, OWCP denied modification of its January 26, 2021 

decision. 

LEGAL PRECEDENT

An employee seeking benefits under FECA3 has the burden of proof to establish the 

essential elements of his or her claim, including that the individual is an employee of the United 

States within the meaning of FECA, that the claim was timely filed within the applicable time 

limitation of FECA,4that an injury was sustained in the performance of duty as alleged, and that 

any disability or medical condition for which compensation is claimed is causally related to the 

employment injury.5 These are the essential elements of each and every compensation claim, 

regardless of whether the claim is predicated upon a traumatic injury or an occupational disease.6

To establish that an injury was sustained in the performance of duty in an occupational 

disease claim, a claimant must submit: (1) a factual statement identifying employment factors 

alleged to have caused or contributed to the presence or occurrence of the disease or condition; 

(2) medical evidence establishing the presence or existence of the disease or condition for which 

compensation is claimed; and (3) medical evidence establishing that the diagnosed condition is 

causally related to the employment factors identified by the claimant. 7 

Causal relationship is a medical issue, and the medical evidence required to establish causal 

relationship is rationalized medical opinion evidence.8 The opinion of the physician must be based 

on a complete factual and medical background of the employee, must be one of reasonable medical 

3

Supra note 1.

4

S.M., Docket No. 21-0937 (issued December 21, 2021); J.W., Docket No. 18-0678 (issued March 3, 2020); J.P., 

59 ECAB 178 (2007); Joe D. Cameron, 41 ECAB 153 (1989). 

5

J.S., Docket No. 18-0657 (issued February 26, 2020); J.M., Docket No. 17-0284 (issued February 7, 2018); 

James E. Chadden, Sr., 40 ECAB 312 (1988).

6 M.T., Docket No. 20-1814 (issued June24, 2022); L.J., Docket No. 19-1343 (issued February 26, 2020); R.R., 

Docket No.18-0914 (issued February 24, 2020); Delores C. Ellyett, 41 ECAB 992 (1990).

7

S.C., Docket No. 18-1242 (issued March 13, 2019); R.H., 59 ECAB 382 (2008).

8

J.L., Docket No. 21-1373 (issued March 27, 2023); A.M., Docket No. 18-1748 (issued April24, 2019); T.H., 59 

ECAB 388, 393 (2008); Robert G. Morris, 48 ECAB 238 (1996).
6

certainty, and must be supported by medical rationale explaining the nature of the relationship 

between the diagnosed condition and specific employment factors identified by the employee. 9

In a case in which a preexisting condition involving the same part of the body is present 

and the issue of causal relationship therefore involves aggravation, acceleration, or precipitation, 

the physician must provide a rationalized medical opinion that differentiates between the effects 

of the work-related injury or disease and the preexisting condition.10

ANALYSIS

The Board finds that appellant has not met his burden of proof to establish bilateral carpal 

tunnel syndrome causally related to the accepted factors of his federal employment. 

In a September 1, 2020 work status report, Dr. Apatira noted appellant’s date of injury as 

August 31, 2020 and provided work restrictions limiting repetitive and forceful gripping, grasping, 

and pinching activities, especially with the hands in awkward positions. In September 15, 2020 

work status reports, she diagnosed bilateral hand pain and paresthesia and right forearm pain. 

Dr. Apatira again provided work restrictions. In an after-visit summary of even date, she reiterated 

her diagnoses. In subsequent reports dated October 15 and December 3 and 22, 2020 and 

January 21, 2021, Dr. Apatira repeated her findings and diagnoses. However, none of these reports 

included an opinion on causal relationship. The Board has held that medical evidence that does 

not offer an opinion regarding the cause of an employee’s condition is of no probative value on 

the issue of causal relationship.11 This evidence is, therefore, insufficient to establish appellant’s 

claim.

In a November 10, 2020 report, Dr. Apatira evaluated appellant for bilateral hand and 

forearm pain and numbness. She noted that he attributed his symptoms to the “chronic use of 

various vibratory power tools.” Dr. Apatira indicated that appellant had a history of numbness in 

the tips of his right fingers when he underwent chemotherapy treatment from August to 

November 2019. She diagnosed bilateral carpal tunnel syndrome, paresthesia, and hand pain. 

Dr. Apatira asserted that appellant’s symptoms were more consistent with carpal tunnel syndrome

as opposed to “arm vibration syndrome on baseline nonindustrial drug-induced paresthesia.” She 

related, “In my opinion, the underlying cause of [appellant’s] symptoms is chronic drug-induced 

paresthesia, a nonindustrial condition. However, but for the stated mechanism, specifically [the] 

use of vibratory tools, this preexisting condition would not have become disabling or needed 

medical treatment....” Dr. Apatira also provided work restrictions. In subsequent reports dated 

November 10, 2020 through April 20, 2021, she reiterated her opinion that appellant’s use of 

power tools aggravated his underlying condition. The Board has held that a report is of limited 

probative value regarding causal relationship if it does not contain medical rationale explaining 

9 R.G., Docket No. 18-0792 (issued March 11, 2020); D.J., Docket No. 19-1301 (issued January 29, 2020); I.J., 59 

ECAB 408 (2008); Victor J. Woodhams, 41 ECAB 345, 352 (1989).

10 A.O., Docket No. 20-0038 (issued August 26, 2020); B.H., Docket No. 18-1693 (issued July 20, 2020); Federal 

(FECA) Procedure Manual, Part 2 -- Claims, Causal Relationship, Chapter 2.805.3e (January 2013).

11 See L.B., Docket No. 18-0533 (issued August 27, 2018); D.K., Docket No. 17-1549 (issued July 6, 2018).
7

how a given medical condition/disability was related to employment factors. 12 Therefore, this 

evidence is also insufficient to establish appellant’s claim. 

In a March 18, 2021 medical report, Dr. Gajendrandiagnosed right carpal tunnel syndrome 

and indicated that appellant underwent right carpal tunnel release on that date. However, he did 

not provide an opinion on causal relationship. As explained above, the Board has held that medical 

evidence that does not offer an opinion regarding the cause of an employee’s condition is of no 

probative value on the issue of causal relationship.

13

 This evidence is, therefore, insufficient to 

establish appellant’s claim.

OWCP also received notes from a physical therapist and a physician assistant. The Board 

has held that certain healthcare providers such as physician assistants and physical the rapists are 

not considered physicians as defined under FECA and, thus, their medical findings and/or opinions 

will not suffice for purposes of establishing entitlement to FECA benefits. 14 As such, this evidence 

is insufficient to establish appellant’s claim.

Appellant may submit new evidence or argument with a written request for reconsideration 

to OWCP within one year of this merit decision, pursuant to 5 U.S.C. § 8128(a) and 20 C.F.R. 

§§ 10.605 through 10.607.

CONCLUSION

The Board finds that appellant has not met his burden of proof to establish bilateral carpal 

tunnel syndrome causally related to the accepted factors of his federal employment. 

12 See Y.D., Docket No. 16-1896 (issued February 10, 2017) (a report is of limited probative value regarding causal 

relationship if it does not contain medical rationale describing the relation between work factors and a diagnosed 

condition/disability).

13 See L.B., Docket No. 18-0533 (issued August 27, 2018); D.K., Docket No. 17-1549 (issued July 6, 2018).

14 Section 8101(2) provides that physician includes surgeons, podiatrists, dentists, clinical psychologists, 

optometrists, chiropractors, and osteopathic practitioners within the scope of their practice as defined by State law, 5 

U.S.C. § 8101(2); 20 C.F.R. § 10.5(t). SeeFederal (FECA) Procedure Manual, Part 2 --Claims, Causal Relationship, 

Chapter 2.805.3a(1) (September 2020);DavidP. Sawchuk, 57 ECAB 316, 320 n.11 (2006) (lay individuals such as 

physician assistants, nurses, and physical therapists are not competent to render a medical opinion under FECA). See 

also M.M., Docket No. 20-1649 (issued January 4, 2023) (physician assistants are not considered physicians as defined 

by FECA); A.F., Docket No. 22-1221 (issued December 8, 2022) (physical therapists are not considered physicians 

as defined by FECA).
8

ORDER

IT IS HEREBY ORDERED THAT the May 17, 2021 decision of the Office of Workers’

Compensation Programs is affirmed.

Issued: September 27, 2023

Washington, DC

Alec J. Koromilas, Chief Judge

Employees’ Compensation Appeals Board

Patricia H. Fitzgerald, Deputy Chief Judge

Employees’ Compensation Appeals Board

Janice B. Askin, Judge

Employees’ Compensation Appeals Board