Shirl Roberson, who suffers from bipolar disorder, applied for social security disability insurance benefits and supplemental security income. After the Social Security Administration (SSA) denied her benefits initially, she received a hearing before an administrative law judge (ALJ), who concluded that she was not disabled and denied her claim. The Appeals Council denied review, and so the ALJ’s decision became the final decision of the SSA. Ms. Roberson sought relief in district court, 2 which upheld the ALJ’s decision, and Ms. Roberson appealed, contending that the administrative decision is not supported by substantial evidence. We affirm.
We review the district court’s decision
de novo. See Pettit v. Apfel,
The SSA uses a five-step process to determine whether a social security claimant is disabled.
See
20 C.F.R. § 404.1520.
I.
Ms. Roberson contends that she “arguably” met Listing 12.04 for bipolar disorder and thus should be presumed disabled. But we believe that the ALJ’s conclusion that she did not meet a listing was supported by substantial evidence. Although Ms. Roberson had “bipolar syndrome,” see Listing 12.04A3, in order to meet the listing, a claimant also must have two of the four restrictions listed in 12.04B. Ms. Roberson contends that she met that requirement because she had “[mjarked difficulties” both “in maintaining social functioning” and “in maintaining concentration, persistence, or pace.” See Listing 12.04B.2,3. At the hearing, Ms. Roberson testified repeatedly that she had difficulty understanding instructions, remembering what she was told to do, focusing, and completing her work in a timely manner; she also mentioned having problems interacting with others in the workplace. But she did not .offer medical evidence to support a finding that her limitations in those areas were “marked” or rose to a degree that prevented her from functioning satisfactorily. Thus we reject Ms. Roberson’s contention that the evidence compels the conclusion that she met a listing.
II.
Ms. Roberson also maintains that the ALJ erred in several respects in step four of the inquiry, in which he concluded that she could return to her work as a computer programmer.
She first contends that the ALJ failed fully to consider all of the evidence when assessing her residual functional capacity (RFC). Before determining whether Ms. Roberson was able to return to her past work, the ALJ was required to determine her RFC.
See
20 C.F.R. § 404.1520(e). The RFC “is a function-by-function assessment based upon all of the relevant evidence of an individual’s ability to do work-related activities,” despite his or her physical or mental limitations. S.S.R. 96-8p,
The ALJ concluded that Ms. Roberson’s mental impairment limited her ability to do work-related activities only by preventing her from performing work that involved complaints from the public and that she was not limited by any physical impairment. When determining a claimant’s RFC, the ALJ must consider all relevant evidence, including the claimant’s own description of her or his limitations, as well as medical records, and observations of treating physicians and others.
See Pearsall v. Massanari,
Dr. Ilivicky began treating Ms. Roberson in 2000. At one point in her treatment, he found that she had “extreme mood swings, uncontrollable anxiety, [and an] inability to interact with people or handle stressful situations.” Ms. Roberson contends that Dr. Ilivicky found that she was disabled, and she relies on a Family Medical Leave Act (FMLA) form that he completed in early August, 2002, about the time that she claims her disability began. On the FMLA form, Dr. Ilivicky stated that Ms. Roberson was unable to work; the doctor had last seen Ms. Roberson a week earlier and written in his office notes that she said that she “needed to go on disability” because of her bipolar disorder and that she was unable to work for the next four weeks. Thus Dr. Ilivicky did not state that she was or would be disabled for the twelve-month period required for social security benefits. See 42 U.S.C. §§ 4160X1), 1382c(a)(3)(A).
Ms. Roberson did not return to work after taking her FMLA leave. In October, 2002, SSA asked Dr. Ilivicky to complete a form assessing Ms. Roberson’s limitations, but the doctor returned the uncompleted form, along with his office notes for Ms. Roberson. Though we question the ALJ’s conclusion that Dr. Ilivicky’s failure to complete the form indicates his belief that Ms. Roberson was not disabled, the blank form certainly cannot assist her in proving her claim. And, as the ALJ notes in his opinion, Dr. Ilivicky’s office records from July, 2002, until late 2003 refer to Ms. Roberson’s forgetfulness or decreased memory only twice, her racing thoughts once, and her increased rate of speech twice. Although they often state that Ms. Roberson had a “labile” affect (frequently fluctuating mood), the doctor often described the condition as “mild” or “slight.” We do not believe that the ALJ’s determination of Ms. Roberson’s RFC was necessarily contrary to the opinion of her treating doctor.
After Dr. Leonberger met with Ms. Roberson and reviewed her records, he diagnosed her with cyclothymic disorder, which is similar to bipolar disorder, and involves chronic, fluctuating mood-disturbances. See American Psychiatric Association, Diagnostic Statistical Manual of Mental Disorders (4th ed.) 361-66. According to Dr. Leonberger, Ms. Roberson’s condition sometimes caused her to be “restless” and “fidgety” and to speak rapidly, “which [made her] social interactions difficult.”
Dr. Leonberger assessed Ms. Roberson’s RFC in all areas of mental functioning. On the RFC form, the clinical psychologist concluded that Ms. Roberson had no more than a “moderate” limitation in any area, and a moderate limitation, as defined on the form itself, does not prevent an individual from functioning “satisfactorily.”
See Lacroix v. Barnhart,
For the above reasons, we reject Ms. Roberson’s contention that the ALJ’s determination of her RFC is contrary to all of the medical evidence.
In assessing her RFC, Ms. Roberson also contends that the ALJ should have considered the side effects of her medication, but at the administrative hearing Ms. Roberson mentioned only that her medications made her somewhat tired. And when asked to explain her difficulties at work, she did not attribute her work-related problems to those side effects. And though Ms. Roberson refers on appeal to her complaints of physical pain, we note that when she was asked at the hearing what kept her from being able to work she made no reference to any physical problems.
Ms. Roberson also argues that the ALJ improperly determined that she was not credible and thus erred in failing to give her statements weight when determining her RFC. An ALJ may not reject a claimant’s subjective complaints, such as Ms. Roberson’s statements that she was unable to concentrate, sometimes had difficulty sitting still, became confused, was often tired, and had difficulty remembering and following instructions, based merely on the absence of objective medical evidence.
Polaski v. Heckler,
The ALJ noted the many daily activities that Ms. Roberson engaged in. Although a claimant need not be bedridden in order to be unable to work,
see Reed v. Barnhart,
In determining her credibility, Ms. Roberson also argues that the ALJ should have considered a written statement from her husband that supported her testimony about the difficulties that she experienced at work.
Cf. Cox v. Barnhart,
In addition, she argues that her work history exhibits a determination to remain employed, and should have been considered in support of her credibility.
See Hutsell v. Massanari,
Ms. Roberson also contends that the ALJ should have assigned greater weight to the opinion of Dr. Ilivicky, her treating psychiatrist, when determining her RFC. Though a treating doctor’s opinion may sometimes be controlling, and is often given more weight than the opinions of non-treating physicians,
Singh v. Apfel,
After her hearing, Ms. Roberson submitted additional records to the Appeals Council that were prepared after the ALJ denied her claim. These included,
inter alia,
Dr. Ilivicky’s statements in November 2004 and January 2005. In these entries, Dr. Ilivicky stated that he did not think that Ms. Roberson was able to work. The Appeals Council will consider new evidence if it is material to the issue decided by the ALJ. 20 C.F.R. § 404.970(b). Evidence is material if it is “relevant to claimant’s condition for the time period for which benefits were denied.”
Bergmann v. Apfel,
Ms. Roberson also maintains that the ALJ substituted his own opinion for that of a medical expert. In his written decision, the ALJ said that Ms. Roberson’s last employer, who terminated her from her position as a computer programmer, “stated that other employees had difficulties with the claimant because she did not listen well, and that the claimant had ‘extreme’ difficulty following instructions because she was quick to say she understood when she had not.” Rather than attributing these difficulties to her bipolar disorder, the ALJ concluded, “in light of medical evaluation results, these characteristics could only reasonably be attributed to the claimant’s inherent nature, not a mental impairment.” According to Ms. Roberson, in reaching this conclusion the ALJ made a medical judgment. We are unsure of the basis for the ALJ’s conclusion, especially given the “medical evaluation results” that refer to her difficulties in relating to others. But we do not think that this statement from the ALJ precludes the conclusion that his decision is supported by substantial evidence.
Accordingly, the judgment of the district court is affirmed.
Notes
. The Honorable Catherine D. Perry, United States District Judge for the Eastern District of Missouri.
