                                                                          F I L E D
                                                                   United States Court of Appeals
                                                                           Tenth Circuit
                     UNITED STATES COURT OF APPEALS
                                                                           APR 14 2000
                            FOR THE TENTH CIRCUIT
                                                                      PATRICK FISHER
                                                                               Clerk

    DALE R. DILLINER,

                Plaintiff-Appellant,

    v.                                                   No. 99-5070
                                                    (D.C. No. 97-CV-580-J)
    KENNETH S. APFEL, Commissioner,                       (N.D. Okla.)
    Social Security Administration,

                Defendant-Appellee.


                            ORDER AND JUDGMENT            *




Before BALDOCK , BRISCOE , and LUCERO , Circuit Judges.




         After examining the briefs and appellate record, this panel has determined

unanimously to grant the parties’ request for a decision on the briefs without oral

argument. See Fed. R. App. P. 34(f); 10th Cir. R. 34.1(G). The case is therefore

ordered submitted without oral argument.




*
      This order and judgment is not binding precedent, except under the
doctrines of law of the case, res judicata, and collateral estoppel. The court
generally disfavors the citation of orders and judgments; nevertheless, an order
and judgment may be cited under the terms and conditions of 10th Cir. R. 36.3.
      Plaintiff-appellant Dale R. Dilliner appeals the judgment of the district

court affirming the decision of the Commissioner of Social Security to deny his

application for disability insurance benefits. After examining the record as a

whole, we determine that the Commissioner’s decision is supported by substantial

evidence and adheres to correct legal standards.   See Shepherd v. Apfel , 184 F.3d

1196, 1199 (10th Cir. 1999). We affirm.

      Mr. Dilliner alleges that since he sustained a workplace injury in August

1992, he has been disabled due to back pain. At the hearing before the

Administrative Law Judge (ALJ), claimant appeared unrepresented. He described

his back problems and ensuant medical treatment, including a laminectomy

performed on March 24, 1994. He also mentioned a vocal cord lesion, lymphatic

tumors, hearing loss, vision difficulties, stiffness and soreness attributable to

arthritis, and hypertension. A vocational expert also testified.

      Based on the hearing testimony and a review of the medical records, the

ALJ concluded that Mr. Dilliner “retaine[d] the residual functional capacity to

perform a full range of sedentary work, to include lifting no more than ten pounds

at a time and lifting/carrying more than occasionally articles like docket files,

ledgers, and small tools, standing/walking no more than 2 hours in an 8-hour day,

and not doing any significant stooping due to pain.” Appellant’s App. at 26.

With this residual functional capacity (RFC), Mr. Dilliner could not return to his


                                           -2-
previous occupation of meatcutter, which is heavy work. However, he could

perform his past relevant work as a union business agent, a sedentary position.

        The ALJ therefore determined, at step four of the five-step sequential

evaluation process, that claimant was not disabled within the meaning of the

Social Security Act.   See Williams v. Bowen , 844 F.2d 748, 750-51 (10th Cir.

1988) (discussing the five-step process). Mr. Dilliner disputes this conclusion,

arguing that the ALJ failed: (1) to fulfill the duty to develop the record for an

unrepresented claimant; (2) to portray his true physical limitations in the

hypothetical questions propounded to the vocational expert; and (3) to evaluate

properly his complaints of disabling pain. We address each of these contentions

in turn. 1


1
       Under each of these three headings, appellant’s brief raises a number of
other, unrelated arguments. The common thread of these arguments is
disagreement with the weight the ALJ gave to various physicians’ opinions and
medical reports. “In evaluating the appeal, we neither reweigh the evidence nor
substitute our judgment for that of the agency.” Casias v. Secretary of Health &
Human Servs ., 933 F.2d 799, 800 (10th Cir. 1991). We find no merit in any of
Mr. Dilliner’s scattered arguments. Specifically, we reject the contention that the
ALJ gave undue weight to records compiled before the laminectomy was
performed.

       We note also the Commissioner’s assertion that appellant’s brief raises
certain issues for the first time on appeal. For example, the Commissioner states
that, in making the “duty to develop” argument to the district court, counsel
claimed that the ALJ should have ordered a consultative examination of Mr.
Dilliner’s back. As discussed below, the argument made to this court is quite
different.
                                                                       (continued...)

                                          -3-
                                    Duty to Develop

         The Commissioner has the duty to develop an adequate record relevant to

the issues raised.   See Hawkins v. Chater , 113 F.3d 1162, 1164 (10th Cir. 1997).

“This duty is especially strong in the case of an unrepresented claimant.”         Carter

v. Chater , 73 F.3d 1019, 1021 (10th Cir. 1996). A claimant is responsible,

however, for furnishing medical evidence of claimed impairments.             See 20 C.F.R.

§ 404.1512(a), (c). To require further investigation, a claimant must “make sure

there is, in the record, evidence sufficient to suggest a reasonable possibility that

a severe impairment exists.”     Hawkins , 113 F.3d at 1167.

         Mr. Dilliner asserts that the ALJ should have explored his responses to a

Veterans Administration questionnaire included in his medical records. On that



1
    (...continued)
          We caution counsel that this court has

         consistently rejected the argument that raising a related theory below
         is sufficient to preserve an issue for appeal. Changing to a new
         theory on appeal that falls under the same general category as an
         argument presented at trial or discussing a theory only in a vague and
         ambiguous way below is not adequate to preserve issues for appeal.

Okland Oil Co. v. Conoco Inc. , 144 F.3d 1308, 1314 n.4 (10th Cir. 1998)
(citations and quotation omitted). As a matter of judicial economy, however, we
have chosen to address the issues as framed in appellant’s brief, rather than sort
through the record to ascertain the precise scope of the district court arguments.




                                            -4-
form, Mr. Dilliner made checkmarks indicating that he has had a nervous

breakdown and has undergone the “[r]emoval or loss of a finger, toe, arm or leg.”

Appellant’s App. at 138. At the hearing, however, Mr. Dilliner did not allege a

mental impairment and, other than one checkmark on one form, he presented no

written evidence of a possible mental impairment. On the amputation issue, the

record reflects that “at age fourteen [Mr. Dilliner] electively had his fifth toe

amputated because it crossed over the others and [] it was painful when he

walked.” Id. at 171. For at least twenty-five years after the amputation, Mr.

Dilliner engaged in substantial gainful activity without claiming that the loss of

his toe affected his ability to work.

       Mr. Dilliner also maintains that the ALJ should have obtained the full

records of the physician who found that he was disabled under the terms of his

former employer’s pension plan. The physician’s opinion, relating to an inability

to function as a meatcutter, is included in the administrative record and was

considered by the ALJ. In fact, the ALJ agreed that Mr. Dilliner could no longer

perform the heavy work of meatcutter. The underlying records would not have

shed significant light on Mr. Dilliner’s ability to do the sedentary job of union

business agent. This is particularly true in light of the extensive medical evidence

submitted by other physicians.




                                          -5-
       Nothing in the record suggests a reasonable possibility of a severe, but

unexplored, impairment requiring further investigation. Neither Mr. Dilliner’s

history nor his testimony implicate the ALJ’s duty to develop the record by

obtaining existing records or asking additional questions. Even taking into

account the added burden that applies to an unrepresented claimant, the ALJ did

not breach the duty to develop the record.


                  Hypothetical Questions to the Vocational Expert

       Mr. Dilliner argues that the hypothetical questions posed to the vocational

expert did not accurately portray his physical limitations: specifically, his hearing

loss, his vision difficulties, and his arthritis. At step four, the claimant bears the

burden of proving he cannot return to his past relevant work, either as he

performed it or as it is performed in the national economy.        See Andrade v.

Secretary of Health & Human Servs.      , 985 F.2d 1045, 1051 (10th Cir. 1993). A

step-four denial does not require a showing that the former job is available.       Id.

Also, it does not involve a calculation of the number of such jobs existing in the

national economy.    Cf. 20 C.F.R. §§ 404.1520(f), 404.1561 (requiring

consideration of work existing in the national economy for a step-five

determination).

       The ALJ questioned Mr. Dilliner extensively about the demands of his work

as a union business agent.    See Appellant’s App. at 38-42. He then turned to the

                                            -6-
VE for her expert testimony. In response to the ALJ’s hypothetical questions, the

VE testified that the position is sedentary work which could be performed by a

person who could lift no more than twenty pounds, frequently lift or carry ten

pounds, and occasionally stoop.    See id. at 60. On her own initiative, the VE

stated that, for a person with “inability to sit and . . . difficulty with hearing and

vision,” the number of available sedentary jobs would be reduced.       Id.

Significantly, the VE did not opine that a person with all of Mr. Dilliner’s

claimed limitations could not meet the demands of the union position.

      Thus, an attack on the completeness of the ALJ’s hypothetical questions is

misplaced here. Even if Mr. Dilliner’s claimed limitations are fully credited, the

record supports a finding that he had the physical and mental capacity to perform

his past sedentary work as a union business agent.    2



                   Evaluation of Complaints of Disabling Pain

      Finally, Mr. Dilliner challenges the ALJ’s evaluation of his subjective

complaints of pain. The ALJ cited and discussed the lack of objective medical

evidence to support the degree or duration of the pain Mr. Dilliner alleged. The


2
      In this section of his brief, Mr. Dilliner adds another argument concerning
the ALJ’s step-four determination. He claims that the ALJ erred by failing to
address the physical demands of the position of “business representative, labor
union” as listed in the Dictionary of Occupational Titles (4th ed. 1991) (DOT).
However, the DOT description of this position as usually performed in the
national economy is consistent with the VE’s testimony about the position. There
was no need for an explicit mention of the DOT in the ALJ’s decision.

                                           -7-
ALJ also discounted Mr. Dilliner’s complaints because his own testimony

concerning his daily activities did not support a claim that he was unable to

engage in all work activity. Mr. Dilliner walks about a mile a day, drives an

automobile, and goes fishing for about two hours or longer. Appellant’s App. at

20. See Gossett v. Bowen , 862 F.2d 802, 807 (10th Cir. 1988) (a finding of

disability requires more than the inability to work without pain).

      We conclude that the ALJ correctly applied the relevant legal standards.

See Kepler v. Chater , 68 F.3d 387, 391 (10th Cir. 1995) (listing factors ALJ may

consider in evaluating subjective complaints, including levels of medication and

their effectiveness, extensiveness of attempts to obtain relief, frequency of

medical contacts, nature of daily activities, subjective measures of credibility

within the judgment of the ALJ, motivation of and relationship between claimant

and other witnesses, and consistency of nonmedical testimony with objective

medical evidence). We further find substantial evidence in the record supporting

the ALJ’s credibility findings.

      The judgment of the district court is AFFIRMED.



                                                     Entered for the Court



                                                     Bobby R. Baldock
                                                     Circuit Judge

                                         -8-
