Jоseph Ekeland appeals from the district court’s affirmance of the Secretary’s denial of his claim for Social Security disability benefits under Title II of the Social Security Act, 42 U.S.C. §§ 401-433 (1982). We reverse and remand.
BACKGROUND
Ekeland, 58, claims disability based on the side effects of radiation therаpy he received for a brain tumor. From 1972 to 1986, he worked as a banker, insurance agent, and farm manager in Somers, Iowa. In 1984, he was diagnosed as having an inoperable, malignant brain tumor and underwent thirty-three radiation treatments. Although the tumor is now in remission, Ekeland’s radiation therаpy caused a partial vision loss and subcortical dementia resulting in cognitive impairment. Ekeland applied for Social Security disability insurance benefits on July 1, 1986. A psychologist who examined Ekeland for the Social Security Administration (SSA) estimated that Ekeland’s most recent IQ sсore of 92 reflects a decline of at least fifteen points from his level of intellectual functioning before he developed the brain tumor.
Following his radiation therapy, Eke-land’s work performance deteriorated significantly. He experienced memory loss, poor attention span, and an inability to make decisions. Eventually, the bank at *721 which he was branch manager had to discharge him because his mistakes and poor customer relations caused the bank to lose business.
Ekeland’s treating neurologist, Brian P. O’Neill, M.D., reported а significant and permanent decline in his cognitive abilities, and expected him never to recover to a point that would allow him to resume his former occupation. Dr. O’Neill expressed no opinion about Ekeland’s ability to perform other kinds of gainful employment.
In July 1987, Ekeland enrolled in the Iowa State Vocational Rehabilitation Facility (ISVRF). Following a two-week evaluation, the ISVRF staff concluded that Eke-land’s extremely slow work pace, lack of physical stamina, memory loss, poor vision, and lowered energy level all would cause him significant difficulties in meeting competitive employment expectations. The ISVRF tested Ekeland in a variety of job skill areas, but he performed poorly in all of them despite a cooperative and willing attitude.
Following the SSA’s denial of Ekeland’s claim for disability benefits through the reconsideration level, he received a hearing before an administrative law judge (AU) on September 8, 1987. 1 The AU found that Ekeland’s impairments did not meet or equal an impairment in the Social Security Regulations Listing of Impairments, but that he could not return to his past relevant work. The AU called a vocational expert who testified, based on a hypothetical posed by the AU, that Ekeland could perform the jobs of small parts assembler, packager, and laundry and garment folder. The vocational expert also stated that these jobs exist in significant numbers in the national economy. The AU consequently found Ekeland not to be disabled. On appeal, the district court affirmed the AU’s decision.
DISCUSSION
Ekeland presents three arguments on appeal. He argues that substantial evidence on the recоrd as a whole detracts from the evidence on which the AU relied, that the hypothetical posed to the vocational expert improperly failed to include all of his impairments, and that the AU erroneously concluded that his mental disorder did not meet the requirеments for disability under the Listing of Impairments.
I.
Ekeland argues that the AU erroneously discounted the vocational rehabilitation evaluations performed by the ISVRF. These vocational experts concluded, following two weeks of testing, that Ekeland could not be rehabilitated for any kind of competitive gainful employment. The AU instead relied on the opinion of the vocational expert whom he called, who examined only the exhibit file and Eke-land’s work history. Additionally, because the complete ISVRF report was not included in Ekeland’s file until after the administrative hearing, the vocational expert did not have the benefit of the ISVRF’s full findings and conclusions regarding Eke-land’s employment rehabilitation potential in responding to the AU’s questions.
An Eighth Circuit panel recently found an AU to have committed legal error by ignoring the findings of thе claimant's vocational expert and instead relying on the testimony of a government vocational consultant.
Jelinek v. Bowen,
The AU also noted that Ekeland’s daily activities included house and garden work. The record shows that Ekeland helped wash dishes and mowed the lawn, and that a neighbor had helped him cut down some trees and haul some branches in his yard. These facts may have influenced the AU’s conclusion that Ekeland was capable of performing the exertional tasks required in medium work. This court often has noted, however, that a claimant’s ability to perform household chores does not necessarily prove that claimant capable of full-time employment.
See, e.g., Easter v. Bowen,
II.
Ekeland also contends that the hypothetical question the AU asked the vocational expert was defective in failing to include all of the ISVRF’s findings. Because the conclusions of the ISVRF evaluators are uncontradicted by anything in the record and are corroborated by evidence from Ekeland’s treating neurologist, this contention is correct. This court often has held that testimony elicited by hypothetical questions that do not relate with precision all of a claimant’s impairments cannot constitute substantial evidence to support the Secretary’s decision.
See, e.g., Douglas v. Bowen,
III.
Ekeland also argues that the AU evaluated his mental disorder improperly under the Listing of Impairments in the Regulations, 20 C.F.R. Part 404, Subpart P, App. 1. He contends that he meets or exceeds all the criteria necessary for disability status on the basis of organic mеntal disorder. See id. § 12.02. 3
*723 The Social Security Regulations require the use of a special procedure to evaluate all claims of mental impairment. See 20 C.F.R. § 404.1520a (1988). This procedure requires an AU to complete a Psychiatric Review Technique Form. This form assesses the severity оf mental impairments by analyzing the degree of functional limitations the impairments cause in each of four categories. The categories correspond to subparagraphs 1-4 of section 12.-02, paragraph B, of the Listing of Impairments. See supra note 3.
Our reading of the administrative rеcord suggests that the AU underestimated Eke-land’s degree of limitation on his rating of impairment severity in categories 3 and 4 of the Psychiatric Review Technique Form. Category 3 includes deficiencies of concentration, persistence or pace resulting in failure to complete tasks in a timely manner. The AU rated Ekeland’s limitation in this category as “often” on a scale ranging from “never” through “constant,” with “frequent” being the degree of limitation that satisfies the Listing of Impairments. The ISVRF report indicates that Ekeland experienced at least eleven instances of confusion, poor memory, and extremely slow work pace in a two-week period of tests. Although the distinction between “often” and “frequent,” the severity rating needed for an award of benefits, is not clear, the ISVRF evaluation suggests that Ekeland’s defiсiencies of concentration and slow work pace occurred almost daily. Thus, a rating of “frequent” in this category may have been appropriate.
Category 4 of the Psychiatric Review Technique Form includes episodes of deterioration or deсompensation in work or work-like settings which cause the individual to withdraw from that situation or to experience exacerbation of signs and symptoms. The AU found that this happened to Ekeland only once or twice on a scale ranging from “never” through “continual,” with “repeated” being the degree of limitation that satisfies the Listing of Impairments. The ISVRF report indicates that Ekeland experienced at least seven instances of frustration, depression, discouragement, and poor coping skills during his evaluations. Consequently, Ekeland may qualify for а rating of “repeated” under Category 4.
Ekeland's memory impairment, loss of at least 15 IQ points, extremely slow work pace, and poor coping skills appear to fit within the standard for organic mental disorders in the Listing of Impairments. Substantial evidence on the recоrd as a whole suggests that the functional limitations resulting from Ekeland’s mental disorder are of Listing-level severity. We believe the AU may have concluded that Ekeland’s impairments did not rise to that level because he failed to accord appropriate weight to the rеsults of the comprehensive vocational testing performed by the ISVRF.
CONCLUSION
We reverse the decision of the district court and remand the case with instruc *724 tions to the Secretary that Ekeland receive another administrative hearing. The AU should evaluate Ekeland’s impairments under the criteria for organic mental disorders in the Listing of Impairments giving full consideration to the entire record and particular attention to the findings of the ISVRF. If the AU concludes that Eke-land’s impairments are not of Listing-level severity, he should receive testimony from a vocatiоnal expert who is fully familiar with the entire administrative record. Any hypothetical questions posed to such an expert must set forth with precision all of Ekeland’s impairments.
Notes
. Although the ISVRF evaluation was completed on August 7, 1987, only a portion of the evaluation report was available for inclusion in the administrative record at the time of Ekeland’s hearing one month later. The balance of the ISVRF report was not added to Ekeland’s file until after the administrative hearing.
. For example, the vocational expert testified that Ekeland could wоrk as a small parts assembler. Tests performed at the ISVRF indicated that Ekeland had difficulty with multiple step tasks and tasks requiring organization, manipulation, or inspection of many parts. Had the ALJ’s hypothetical included this information, the expert might well have concluded that Eke-land was not capable of working as a small parts assembler.
. Section 12.02 states in relevant part:
Organic Mental Disorders: ...
The required level of severity for these disorders is met when the requirements in both A and B are satisfied.
*723 A. Demonstration of a loss of specific cognitive abilities or affective changes and the medically documented persistence of at least one of the following:
2.Memory impairment, either short-term (inability to learn new information), intermediate, or long-term (inability to remember information that was known sometime in the past); or
7. Loss of measured intellectual ability of at least 15 I.Q. рoints from premorbid levels or overall impairment index clearly within the severely impaired range on neuropsycho-logical testing, ... AND
B. Resulting in at least two of the following:
1. Marked restriction of activities of daily living; or
2. Marked difficulties in maintaining social functioning; or
3. Deficiencies of concentration, persistence or pace resulting in frequent failure to complete tasks in a timely manner (in work settings or elsewhere); or
4. Repeated episodes of deterioration or decompensation in work or work-like settings which cause the individual to withdraw from that situation or to experience exacerbation of signs and symptoms (which may include deterioration of adaptive behaviors).
20 C.F.R. Part 404, Subpart. P, App. 1, § 12.02 (1988).