SSR 91-7c



20 CFR 416.924 and 416.994(c)

Sullivan v. Zebley, 110 S.Ct. 885 (1990)

(The following Social Security Rulings (SSR) have been rescinded: SSR 83-19, Cumulative Edition (C.E.) 1981-1985, p. 370 and SSR 85-21c, C.E. 1981-1985, p. 818. This Ruling supersedes SSR 82-52, C.E. 1981-1985, p. 328, SSR 82-53, C.E. 1981-1985, p. 312, and SSR 86-8, C.E. 1986, p. 78 to the extent these SSRs discuss the former procedures used to determine disability in children.)

Section 1614(a)(3)(A) of the Social Security Act (the Act) (42 U.S.C. 1382c(a)(3)(A)) authorizes the payment of supplemental security income (SSI) benefits to children who suffer from impairments of "comparable severity" to impairments that would render adults (workers) disabled. The Secretary's former regulations at 20 CFR 416.924 generally provide that a child under age 18 would have been found disabled to purposes of eligibility for SSI benefits only if he or she was found to have an impairment(s) which met the duration requirement and which met or equaled an impairment listed in Appendix 1, Subpart P of Regulations No. 4, the Listing of Impairments. The Supreme Court decided that the Secretary's former regulations implementing the law for evaluating disability in children did not adequately reflect congressional intent. The Court held that the "listings-only" approach used to evaluate the disabilities of children did not carry out the "comparable severity" standard of the Act, in that the listings were set at a level of severity stricter than the level at which an adult can be found disabled and the Secretary's former policies did not provide for an assessment of overall functional impairment.

BLACKMUN, Supreme Court Justice:

This case concerns a facial challenge to the method used by the Secretary of Health and Human Services to determine whether a child is "disabled," and therefore eligible for benefits under the Supplemental Security Income Program, Title XVI of the Social Security Act, as added, 86 Stat. 1465, and amended, 42 U.S.C. § 1381 et seq. (1982 ed. and Supp. V).


In 1972, Congress enacted the Supplemental Security Income Program (SSI) to assist "individuals who have attained age 65 or are blind or disabled" by setting a guaranteed minimum income level for such persons. 42 U.S.C. § 1381. The program went into effect January 1, 1974. Currently, about 2,000,000 claims for SSI benefits are adjudicated each year. Of these, about 100,000 are child-disability claims.[1]

A person is eligible for SSI benefits if his income and financial resources are below a certain level, § 1382(a) and if he is "disabled." Disability is defined in § 1382c(a)(3) as follows:

"(A) An individual shall be considered to be disabled for purposes of this subchapter if he is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than twelve months (or, in the case of a child under the age of 18, if he suffers from any medially determinable physical mental impairment of comparable severity).
"(B) For purposes of subparagraph (A), an individual shall be determined to be under a disability only if his physical or mental impairment or impairments are of such severity that he is not only unable to do his previous work but cannot, considering his age, education, and work experience, engage in any other kind of substantial gainful work which exists in the national economy. . . .
"(C) For purposes of this paragraph, a physical or mental impairment is an impairment that results from anatomical, physiological, or psychological abnormalities which are demonstrable by medically acceptable clinical and laboratory diagnostic techniques."

This statutory definition of disability was taken from Title II of the Social Security Act, 42 U.S.C. § 423 et seq., as amended (providing for payment of insurance benefits to disabled workers who have contributed to the Social Security Program). See § 423(d)(1)(A) and (d)(2)(A) (definitions of disability).

Pursuant to his statutory authority to implement the SSI Program,[2] the Secretary has promulgated regulations creating a 5-step test to determine whether an adult claimant is disabled. See Bowen v. Yuckert, 482 U.S. 137, 140-142, 107 S.Ct. 2287, 2290-91, 96 L.Ed.2d 119 (1987).[3] The first two steps involve threshold determinations that the claimant is not presently working, and has an impairment which is of the required duration and which significantly limits his ability to work. See 20 CFR §§ 416.920(a) through (c) (1989). In the third step, the medical evidence of the claimant's impairment is compared to a list of impairments presumed severe enough to preclude any gainful work. See 20 CFR pt. 404, subpt. P, App. 1 (pt. A) (1989). If the claimant's impairment matches or is "equal" to one of the listed impairments, he qualified for benefits without further inquiry. § 416.920(d). If the claimant cannot qualify under the listings, the analysis proceeds to the fourth and fifth steps. At these steps, the inquiry is whether the claimant can do his own past work or any other work that exists in the national economy, in view of his age, education, and work experience. If the claimant cannot do his past work or other work, he qualified for benefits. §§ 416.920(e) and (f).

The Secretary's test for determining whether a child claimant is disabled is an abbreviated version of the adult test. A child qualified for benefits if he "is not doing any substantial gainful activity," § 416.924(a), if his impairment meets the duration requirement, § 416.924(b)(1), and if it matches or is medically equal to a listed impairment, §§ 416.924(b)(2) and (3). In evaluating a child's claim, both the general listings and a special listing of children's impairments, 20 CFR pt. 404, subpt P, App. 1 (pt. B) are considered. If a child cannot qualify under these listings, he is denied benefits. There is no further inquiry corresponding to the fourth and fifth steps of the adult test.


Respondent Brian Zebley, a child who had been denied SSI benefits, brought a class action in the United States District Court for the Eastern District of Pennsylvania to challenge the child-disability regulations.[4] His complaint alleges that the Secretary

"has promulgated regulations and issued instructions . . . whereby children have their entitlement to SSI disability benefits based solely on the grounds that they have a listed impairment or the medical equivalent of a listed impairment . . . in contravention of the Act's requirement that a child be considered disabled 'if he suffers from any medically determinable physical or mental impairment of comparable severity' to that which disables an adult under the program."

Complaint in ED Pa. Civil Action No. 83-3314, ¶ 2. The District Court, on January 10, 1984, certified a class of all persons "who are now, or who in the future will be, entitled to an administrative determination . . . as to whether supplemental security income benefits are payable on account of a child who is disabled, or as to whether such benefits have been improperly denied, or improperly terminated, or should be resumed."

The court in due course granted summary judgment in the Secretary's favor as to the class claims, ruling that the regulations are not "facially invalid or incomplete . . . and permi[t] the award of benefits in conformity with the intent of Congress." Zebley v. Heckler, 642 F. Supp. 220, 222 (1986). The Court of Appeals for the Third Circuit vacated in part that summary judgment. Zebley ex rel. Zebley v. Bowen, 855 F.2d 67 (1988). The Third Circuit found the Secretary's regulatory scheme for child disability benefits inconsistent with the statute, because the listings-only approach of the regulations does not account for all impairments of "comparable severity," and denies child claimants the individualized functional assessment that the statutory standard requires and that the Secretary provides to adults. Id., at 69. Although the Court of Appeals recognized that the Secretary's interpretation of the statute is entitled to deference, it rejected the regulations as contrary to clear congressional intent. The court remanded the case to the District Court with the direction that summary judgment be entered in favor of the plaintiff class on the claim that the Secretary must give child claimants an opportunity for individualized assessment of their functional limitations. Id., at 77. We granted certiorari to resolve a conflict among the Circuits as to the validity of the Secretary's approach to child disability.[5]


Since the Social Security Act expressly grants the Secretary rulemaking power, see n. 2, supra, "'our review is limited to determining whether the regulations promulgated exceeded the Secretary's statutory authority and whether they are arbitrary and capricious.'" Bowen v. Yuckert, 482 U.S., at 145, 107 S.Ct., at 2293 (quoting Heckler v. Campbell, 461 U.S. 458, 466, 103 S.Ct. 1952, 1957, 76 L.Ed.2d 66 (1983)); see Chevron U.S.A., Inc. v. Natural Resources Defense Council, Inc., 467 U.S. 837, 843-844, 104 S.Ct. 2778, 2782, 81 L.Ed.2d 694 (1984) ("If Congress has explicitly left a gap for the agency to fill, there is an express delegation of authority to the agency to elucidate a specific provision of the statute by regulation. Such legislative regulations are given controlling weight unless they are arbitrary, capricious, or manifestly contrary to the statute"). We conclude, however, that the Secretary's child-disability regulations cannot be reconciled with the statute they purport to implement.

The statute generally defines "disability" in terms of an individualized, functional inquiry into the effect of medical problems on a person's ability to work. Yukert, 482 U.S. at 146, 107 S.Ct. at 2293 (Social Security Act adopts "functional approach"); Campbell, 461 U.S., at 459-460, 467, 103 S.Ct., at 1953, 1957 (Act "defines 'disability' in terms of the effect a physical or mental impairment has on a person's ability to function in the workplace; "statutory scheme contemplates that disability hearings will be individualized determinations").

The statutory, standard for child disability is explicitly linked to this functional, individualized standard for adult disability. A child is considered to be disabled "if he suffers from any . . . impairment of comparable severity" to one that would render an adult "unable to engage in any substantial gainful activity." 42 U.S.C. § 1382c(a)(3)(A). The next paragraph of the statute elaborates on the adult disability standard, providing that an adult is considered unable to engage in substantial gainful activity, and is therefore disabled, if he is unable to do either his own past work or other work. § 1382c(a)(3)(B). In plain words, the two provisions together mean that a child is entitled to benefits if his impairment is as severe as one that would prevent an adult from working.

The question presented is whether the Secretary's method of determining child disability conforms to this statutory standard. Respondents argue, and the Third Circuit agreed, that it does not, because the regulatory requirement that a child claimant's impairment must match or be equivalent to a listed impairment denies benefits to those children whose impairments are severe and disabling even though the impairments are not listed and cannot meaningfully be compared with the listings. The Secretary concedes that his listings do not cover every impairment that could qualify a child for benefits under the statutory standard, but insists that the listings, together with the equivalence determination, see 20 CFR § 416.924(b)(3), are sufficient to carry out the statutory mandate that children with impairments of "comparable severity" shall be considered disabled. To decide this question, we must take a closer look at the regulations at issue.


The listings set out at 20 CFR pt. 404, subpt. P, App. I (pt. A), are descriptions of various physical and mental illnesses and abnormalities, most of which are categorized by the body system they affect.[6] Each impairment is defined in terms of several specific medical signs, symptoms, or laboratory test results.[7] For a claimant to show that his impairment matches a listing, it must meet all of the specified medical criteria. An impairment that manifests only some of those criteria, no matter how severely, does not qualify.[8] See Social Security Ruling (SSR) 83-19.[9] West's Social Security Reporting Service (Rulings Supp. Pamph. 1988) 90, 91-92 ("An impairment 'meets' a listed condition . . . only when it manifests the specific findings described in the set of medical criteria for that listed impairment. . . . The level of severity in any particular listing section is depicted by the given set of findings and not by the degree of severity of any single medical finding -- no matter to what extent that finding may exceed the listed value") (emphasis in original).

For a claimant to qualify for benefits by showing that his unlisted impairment, or combination of impairments, is "equivalent" to a listed impairment, he must present medical findings equal in severity to all the criteria for the one most similar listed impairment.[10] 20 CFR § 416.926(a) (a claimant's impairment is "equivalent" to a listed impairment "if the medical findings are at least equal in severity" to the medical criteria for "the listed impairment most like [the claimant's] impairment"); SSR 83-19, at 92 (a claimant's impairment is "equivalent" to a listing only if his symptoms, signs, and laboratory findings are "at least equivalent in severity to" the criteria for "the listed impairment most like the individual's impairment(s)"; when a person has a combination of impairments, "the medical findings of the combined impairments will be compared to the findings of the listed impairment most similar to the individual's most severe impairment").[11] A claimant cannot qualify for benefits under the "equivalence" step by showing that the overall functional impact of his unlisted impairment or combination of impairments is as severe as that of a listed impairment. SSR 83-19, at 92-93 ("it is incorrect to consider whether the listing is equaled on the basis of an assessment of overall functional impairment. . . . The functional consequences of the impairments . . . irrespective of their nature or extent, cannot justify a determination of equivalence") (emphasis in original).

The Secretary explicitly has set the medical criteria defining the listed impairments at a higher level of severity than the statutory standard. The listings define impairments that would prevent an adult, regardless of his age, education, or work experience, from performing any gainful activity, not just "substantial gainful activity." See 20 CFR § 416.925(a) (purpose of listings is to describe impairments" severe enough to prevent a person from doing any gainful activity"); SSR 83-19, at 91 (listings define "medical conditions which ordinarily prevent an individual from engaging in any gainful activity"). The reason for this difference between the listings' level of severity and the statutory standard is that, for adults, the listings were designed to operate as a presumption of disability that makes further inquiry necessary. That is, if an adult is not actually working and his impairment matches or is equivalent to a listed impairment, he is presumed unable to work, and is awarded benefits without a determination whether he actually can perform his own prior work or other work. See Yuckert, 482 U.S., at 141, 107 S.Ct., at 2291 (if an adult's impairment "meets or equals one of the listed impairments, the claimant is conclusively presumed to be disabled. If the impairment is not one that is conclusively presumed to be disabling, the evaluation proceeds to the fourth step"; the listings "streamlin[e] the decision process by identifying those claimants whose medical impairments are so severe that it is likely they would be found disabled regardless of their vocational background," id., at 153, 107 S.Ct., at 2297); Bowen v. City of New York, 476 U.S. 467; 471, 106 S.Ct. 2022, 2025, 90 L.Ed.2d 462 (1986) ("if a claimant's condition meets or equals the listed impairments, he is conclusively presumed to be disabled and entitled to benefits"; if not, "the process moves to the fourth step"); Campbell, 461 U.S., at 460, 103 S.Ct., at 1953 ("The regulations recognize that certain impairments are so severe that they prevent a person from pursuing any gainful work. . . . A claimant who establishes that he suffers from one of these impairments will be considered disabled without further inquiry. . . . If a claimant suffers from a less severe impairment, the Secretary must determine whether the claimant retains the ability to [work]").

When the Secretary developed the child-disability listings, he set their medical criteria at the same level of severity as that of the adult listings. See 42 Fed. Reg. 14705 (1977) (the child-disability listings describe impairments "of 'comparable severity' to the adult listing"); SSA Disability Insurance Letter No. III-11.[12] (Jan. 9, 1974, App. 97 (child-disability listings describe impairments that affect children "to the same extent as . . . the impairments listed in the adult criteria" affect adults' ability to work).

Thus, the listings in several ways are more restrictive than the statutory standard. First, the listings obviously do not cover all illnesses and abnormalities that actually can be disabling. The Secretary himself has characterized the adult listing as merely containing "over 100 examples of medical conditions which ordinarily prevent" a person from working, and has recognized that "it is difficult to include in the listing all the sets of medical findings which describe impairments severe enough to prevent any gainful work." SSR 83-19, at 91 (emphasis added). See also 50 Fed. Reg. 50068, 50069 (1985) (listings contain only the most "frequently diagnosed" impairments); 44 Fed. Reg. 18170, 18175 (1979) ("The Listing criteria are intended to identify the more commonly occurring impairments"). Similarly, when the Secretary published the child-disability listings for comment in 1977, he described them as including only the "more common impairments" affecting children. 42 Fed. Reg. 14706 (the child-disability listings "provide a means to efficiently and equitably evaluate the more common impairments").[13]

Second, even those medical conditions that are covered in the listings are defined by criteria setting a higher level of severity than the statutory standard, so they exclude claimants who have listed impairments in a form severe enough to preclude substantial gainful activity, but not quite severe enough to meet the listings level -- that which would preclude any gainful activity. Third, the listings also exclude any claimant whose impairment would not prevent any and all persons from doing any kind of work, but which actually precludes the particular claimant from working, given its actual effects on him -- such as pain, consequences of medication, and other symptoms that vary greatly with the individual[14] -- and given the claimant's age, education, and work experience. Fourth, the equivalence analysis excludes claimants who have unlisted impairments, or combinations of impairments, that do not fulfill all the criteria for any one listed impairment. Thus, there are several obvious categories of claimants who would not qualify under the listings, but who nonetheless would meet the statutory standard.

For adults, theses shortcomings of the listings are remedied at the final, vocational steps of the Secretary's test. A claimant who does not qualify for benefits under the listings, for any of the reasons described above, still has the opportunity to show that his impairment in fact prevents him from working. 20 CFR §§ 416.920(e) and (f); Yuckert, 482 U.S., at 141, 107 S.Ct., at 2291 (if an adult claimant's "impairment is not one that is conclusively presumed to be disabling, the evaluation proceeds" to the fourth and fifth steps); Campbell, 461 U.S., at 460, 103 S.Ct., at 1953 ("If a claimant suffers from a less severe impairment" than the listed impairments, "the Secretary must determine whether the claimant retains the ability to perform either his former work or some less demanding employment").[15]

For children, however, there is no similar opportunity. Children whose impairments are not quite severe enough to rise to the presumptively disabling level set by the listings; children with impairments that might not disable any and all children, but which actually disable them, due to symptomatic effects such as pain, nausea, side effects of medication, etc., or due to their particular age, educational background, and circumstances; and children with unlisted impairments or combinations of impairments[16] that are not equivalent to any one listing -- all these categories of child claimants are simply denied benefits, even if their impairments are of "comparable severity" to ones that would actually (though not presumptively) render an adult disabled.[17]

The child-disability regulations are simply inconsistent with the statutory standard of "comparable severity."[18] This inconsistency is aptly illustrated by the fact that the Secretary applies the same approach to child-disability determinations under Title XVI and to widows' and widowers' disability benefits under Title II, despite the fact that Title II sets a stricter standard for widows' benefits. Under the Secretary's regulations and rulings, both widows and children qualify for benefits only if the medical evidence of their impairments meets or equals a listing. SSR 83-19, at 94. Title II provides: "A widow . . . or widower shall not be determined to be under a disability . . . unless his or her . . . impairment or impairments are of a level of severity which under regulations prescribed by the Secretary is deemed to be sufficient to preclude an individual from engaging in any gainful activity." 42 U.S.C. § 423(d)(2)(B). When Congress set out to provide disabled children with benefits, it chose to link the disability standard not to this test, but instead to the more liberal test set forth in § 423(d)(2)(A) and in § 1382c(a)(3)(A) (any impairment making a claimant "unable to engage in any substantial gainful activity" qualifies him for benefits). The Secretary's regulations, treating child-disability claims like claims for widows' benefits, nullify this congressional choice. See Yuckert, 482 U.S., at 163-164, 107 S.Ct., at 2302-03 (dissenting opinion) (contrasting widows' disability statute with the § 423(d)(2)(A)/§ 1382c(a)(3) test, which requires an individualized inquiry as to whether the claimant can work); S. Rep. No. 744, 90th Cong., 1st Sess., 49 (1967), U.S. Code Cong. & Admin. News 1967, pp. 2834, 2883 (disabled widows' statutory "test of disability . . . is somewhat more restrictive than that for disabled workers").


The Secretary does not seriously dispute the disparity in his approach to child and adult-disability determination. He argues, instead, that the listings-only approach is the only practicable way to determine whether a child's impairment is "comparable" to one that would disable an adult. An individualized, functional approach to child-disability claims like that provided for adults is not feasible, The Secretary asserts, since children do not work; there is no available measure of their functional abilities analogous to an adult's ability to work, so the only way to measure "comparable severity" is to compare child claimants' medical evidence with the standard of severity set by the listings. Laying to one side the obvious point that such a comparison does not properly implement the statute because the Secretary's current listings set a level of severity higher than that prescribed by the statute, this argument still is not persuasive. Even if the listings were set at the same level of severity as the statute, and expanded to cover many more childhood impairments, no set listings could ensure that child claimants would receive benefits whenever their impairments are of "comparable severity" to ones that would qualify an adult for benefits under the individualized, functional analysis contemplated by the statute and provided to adults by the Secretary. No decision process restricted to comparing claimants' medical evidence to a fixed, finite set of medical criteria can respond adequately to the infinite variety of medical conditions and combinations thereof, the varying impact of such conditions due to the claimant's individual characteristics, and the constant evolution of medical diagnostic techniques.

The Secretary's claim that a functional analysis of child disability claims is not feasible is unconvincing. The fact that a vocational analysis is inapplicable to children does not mean that a functional analysis cannot be applied to them. An inquiry into the impact of an impairment on the normal daily activities of a child of the claimant's age -- speaking, walking, washing, dressing, and feeding oneself, going to school, playing, etc. -- is, in our view, no more amorphous or unmanageable than an inquiry into the impact of an adult's impairment on his ability to perform "any other kind of substantial gainful work which exists in the national economy," § 1382c(a)(3)(B).[19] Moreover, the Secretary tacitly acknowledges that functional assessment of child claimants is possible, in that some of his own listings are defined in terms of functional criteria. See, e.g. 20 CFR pt. 404, subpt. P, App. I (pt. B), § 101.03 (listing for "Deficit of musculoskeletal function" defined in terms of difficulty in walking or "[i]nability to perform age-related personal self-care activities involving feeding, dressing, and personal hygiene"); § 111.02(B) (listing for "Major motor seizures" defined in terms of "Significant interference with communication" or "Significant emotional disorder," or "Where significant adverse effects of medication interfere with major daily activities"); § 112.05(C) (mental retardation listing for claimants with IQ of 60-69 requiring "a physical or other mental impairment imposing additional and significant restriction of function or developmental progression").[20] Also, the Secretary's own test for cessation for disability involves an examination of a child claimant's ability to "perform age-appropriate activities." 20 CFR § 416.994(c). Finally, the Secretary's insistence that child claimants must be assessed from "a medical perspective alone, without individualized consideration of . . . residual functional capacity," Brief for Petitioner 45, seems to us to make little sense in light of the fact that standard medical diagnostic techniques often include assessment of the functional impact of the disorder.[21]


We conclude that the Secretary's regulations and rulings implementing the child-disability statute simply do not carry out the statutory requirements that SSI benefits shall be provided to children with "any . . . impairment of comparable severity" to an impairment that would make an adult "unable to engage in any substantial gainful activity." § 1382c(a)(3)(A). For that reason, the Secretary's approach to child disability is "manifestly contrary to the statute," Chevron, 467 U.S., at 844, 104 S.Ct., at 2782, and exceeds his statutory authority.

The judgment of the Court of Appeals, vacating in part the District Court's grant of summary judgment in the Secretary's favor as to the claims of the plaintiff class, is affirmed.

It is so ordered.

Justice Blackmun delivered the opinion of the Court, in which Justices Brennan, Marshall, Stevens, O'Connor, Scalia, and Kennedy joined. Justice White filed a dissenting opinion, in which Chief Justice Rehnquist joined.

[1] Social Security Administration, Office of Disability, Preliminary Staff Report: Childhood Disability Study, p. B-1 (Sept. 20, 1989).

[2] 42 U.S.C. § 405(a), made applicable to Title XVI by § 1383(d)(1), reads:

"The Secretary shall have full power and authority to make rules and regulations and to establish procedures, not inconsistent with the provisions of this subchapter, which are necessary or appropriate to carry out such provisions, and shall adopt reasonable proper rules and regulations to regulate and provide for the nature and extent of the proofs and evidence . . . in order to establish the right to benefits hereunder."

[3] The regulations implementing the Title II disability standard, 42 U.S.C. § 423(d), at issue in Yuckert, and those implementing the identical Title XVI standard, § 1382c(a)(3), at issue in this case, are the same in all relevant respects. Compare 20 CFR §§ 404.1520-1530 with §§ 416.920-930 91989).

[4] Respondents Joseph Love and Evelyn Raushi, two children who were denied benefits, are the other two named plaintiffs in this action. All three named plaintiffs' individual claims were eventually remanded to the Secretary by the District Court; only the class claims remain before this Court.

[5] The first and Eleventh Circuits have upheld the validity of the Secretary's approach to child disability. Hinckley ex rel. Martin v. Secretary of Health and Human Services, 742 F.2d 19 (CA1 1984); Powell ex rel. Powell v. Schweiker, 688 F.2d 1357 (CA11 1982). Also the Fifth and Eighth Circuits have ruled that the Secretary properly applied the child-disability regulations to deny benefits in a particular case, without explicitly addressing the question whether the regulations are valid. Nash ex rel. Alexander v. Bowen, 882 F.2d 1291 (CA8 1989); Burnside ex rel. Burnside v. Bowen, 845 F.2d 587 (CA5 1988). The Third Circuit in the present case acknowledged the conflict. Zebley ex rel. Zebley v. Bowen, 855 F.2d 67, 75 (1988).

[6] There are 125 impairments defined in the adult listings, and an additional 57 in the child listings. The body system categories in the adult listings are: musculoskeletal, special senses and speech, respiratory, cardiovascular, digestive, genito-urinary, hemic and lymphatic, skin, and endocrine. In addition, there are four groups of listings not categorized by body system: multiple body system impairments, neurological impairments, mental disorders, and malignant neoplastic diseases. The child- disability listings include, in addition to all these, a category for growth impairment.

[7] For example, under the "growth impairment" category of the child- disability listings, 20 CFR pt. 404, subpt. P. App. I (pt. B) § 100.00 et seq., there is a listing the medical criteria of which require the claimant to show both a "[f]all of greater than 25 percentiles in height which is sustained" and "[b]one age greater than two standard deviations . . . below the mean for chronological age." § 100.03. Another example is the listing for "mental retardation," which requires that a child claimant show "[a]chievement of only those developmental milestones generally acquired by children no more than one-half the child's chronological age," or "IQ of 59 or less," or "IQ of 60-69, inclusive, and a physical or other mental impairment imposing additional and significant restriction of function or developmental progression." § 112.05.

[8] For example, in the growth impairment listing described in n. 7, supra, a child claimant whose "bone age" was slightly less than two standard deviations below normal would not qualify under the listing, even if his height was much more than 25 percentiles below normal.

[9] Social Security Rulings are agency rulings "published under the authority of the Commissioner of Social Security and are binding on all components of the Administration." 20 CFR § 422.408 (1989); see Heckler v. Edwards, 465 U.S. 870, 873, n. 3, 104 S.Ct 1532, 1534, n. 3, 79 L.Ed.2d 878 (1984).

[10] For example, a child claimant with Down syndrome (which currently is not a listed impairment), a congenital disorder usually manifested by mental retardation, skeletal deformity and cardiovascular and digestive problems, would have to fulfill the criteria for whichever single listing his condition must resembled. See Brief for National Easter Seal Society, et al., as Amici Curiae 17, n. 9.

[11] For example, if a child has both a growth impairment slightly less severe than required by listing § 100.03, and is mentally retarded but has an IQ just above the cut-off level set by § 112.04, he cannot qualify for benefits under the "equivalence" analysis -- no matter how devastating the combined impact of mental retardation and impaired physical growth.

[12] A Disability Insurance Letter (DIL) is an internal directive sent by the Secretary to the state agencies responsible for disability determinations. See Brief for Petitioner 36.

[13] There are, as yet, no specific listings for many well-known childhood impairments, including spina bifida, Down syndrome, muscular dystrophy, autism, AIDS, infant drug dependency, and fetal alcohol syndrome. See Brief for American Medical Association, et al., as Amici Curiae (AMA Brief) 22. The Secretary, however, has proposed new listings for "Down syndrome and other Hereditary, Congenital, and Acquired Disorders." 52 Fed. Reg. 37161 (1987). See Reply Brief for Petitioner 19, n. 16.

[14] The Secretary has stated that the severity of perceived symptoms such as pain has no bearing on the determination whether a claimant's impairment meets or equals a listing. Social Security Ruling 82-58, DHHS Rulings, Cumulative Edition 1982, p. 121 ("No alleged or reported intensity of the symptoms can be substituted to elevate impairment severity to equivalency. . . . [C]omplaints of 'severe,' 'extreme,' or 'constant' pain will not compensate for . . . missing medical findings and permit an 'equals' determination") (emphasis deleted).

[15] About 25% of adult claimants qualify for benefits under steps four and five of the Secretary's test. House Committee on Ways and Means, Background Material and Data On Programs Within the Jurisdiction of the Committee on Ways and Means, 1989 Ed., 101st Cong., 1st Sess., 46 (Comm. Print).

[16] As the dissent points out, post, at 899-900, 42 U.S.C. § 1382c(a)(3)(F) requires that "the combined impact of [multiple] impairments shall be considered throughout the disability determination process," and 20 CFR § 416.923 promises that "we will consider the combined effect of all your impairments." This assurance may be of value to adult claimants, but not to children, for whom the combined effect of multiple impairments is considered only within the confines of the equivalence determination, "whether the combination of your impairments is medically equal to any listed impairment." 20 CFR § 416.926(a). As the Court of Appeals noted, if children are afforded the individualized consideration given to adults, then § 416.923 would fulfill the statutory mandate as to children with multiple impairments. 855 F.2d at 76.

[17] Empirical evidence suggests that the rigidity of the Secretary's listings-only approach has a severe impact on child claimants. There are many rare childhood diseases that cannot meaningfully be compared with any of the listings. AMA Brief 6, 25 (it is unlikely "that any physician could make meaningful comparisons between extremely rare diseases and the set medical criteria listed by the Secretary"). Moreover, the listings-only approach disregards factors such as pain, side effects of medication, feeding problems, dependence on medical equipment, confinement at home, and frequent hospitalization, that vary with each individual case. A recent study suggests that children with multiple impairments, young children who cannot be subjected to the clinical tests requires by the listings criteria, and children whose impairments have a severe functional impact but which do not match listings criteria, are often denied benefits. H. Fox & A. Greaney, Disabled Children's Access to Supplemental Security Income and Medicaid Benefits (1988).

A telling example of the effect of the listings-only approach is found in Wilkinson ex rel. Wilkinson v. Bowen, 847 F.2d 660 (CA11 1987) (child with rare liver disorder causing severe swelling, food allergies and fever, and requiring constant care and confinement at home, does not qualify for benefits because his impairment does not meet or equal the criteria for any listing); see also Zebley ex rel. Zebley v. Bowen, 855 F.2d 67 (CA3 1988) (plaintiff Zebley denied benefits, despite evidence of congenital brain damage, mental retardation, development delay, eye problems and musculoskeletal impairment, because his condition did not meet or equal any listing).

The disparity in the Secretary's treatment of child and adult claimants is thrown into sharp relief in cases where an unsuccessful child claimant, upon reaching age 18, is awarded benefits on the basis of the same impairment deemed insufficient to qualify him for child disability benefits. See, e.g., Wills v. Secretary of Health and Human Services, 686 F. Supp. 171, 172, and n. 1 (WD Mich. 1987); Brief of National Organization of Social Security Claimants' Representatives as Amicus Curiae, A-3 to A-24 (ALJ decisions awarding benefits when child claimant turns 18). See also Tr. of Oral Arg. 13-14.

[18] The dissent proposes that children who fail to qualify for benefits under the Secretary's current approach can simply "make their case before the Secretary, and take the case to court if their claims are rejected." Post, at 898-899. We fail to see why each child denied benefits because of his impairment falls within the several categories of impairments that meet the statutory standard but do not qualify under the Secretary's listings-only approach, should be compelled to raise a separate, as-applied challenge to the regulations, or why a facial challenge is not a proper response to the systemic disparity between the statutory standard and the Secretary's approach to child disability claims.

[19] The Secretary's own regulations state that this inquiry involves assessment of an adult claimant's ability to "do physical activities such as walking, standing, lifting, carrying, pushing, pulling, reaching, handling," and his ability "to carry out and remember instructions, and to respond appropriately to supervision, co-workers and work pressures in a work setting." 20 CFR §§ 416.945(b) and (c) (1989). It is difficult to see why such functional assessment would be feasible for adults and not for children.

[20] The Secretary contends that, because some of the child-disability listings include functional criteria, his approach to child disability adequately takes account of functional considerations. Brief for Petitioner 42. This argument is unavailing. The fact that some of the listed impairments are defined in terms of functional criteria is small comfort to child claimants who do not have one of those impairments, and who fail to qualify for benefit for one of the reasons discussed above.

[21] See AMA Brief 5 ("The view that proper study or treatment of pediatric illness and injury must include an assessment of the child's functional capacity to perform age-appropriate activities is well accepted in the medical community. . . . The biological severity of an illness is an abstraction, measured only by proxies, the most familiar of which are physiological severity, functional severity and burden of illness").

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