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No. 10767329
United States Court of Appeals for the Ninth Circuit
Corralejo v. Bisignano
No. 10767329 · Decided December 31, 2025
No. 10767329·Ninth Circuit · 2025·
FlawFinder last updated this page Apr. 2, 2026
Case Details
Court
United States Court of Appeals for the Ninth Circuit
Decided
December 31, 2025
Citation
No. 10767329
Disposition
See opinion text.
Full Opinion
NOT FOR PUBLICATION FILED
UNITED STATES COURT OF APPEALS DEC 31 2025
MOLLY C. DWYER, CLERK
U.S. COURT OF APPEALS
FOR THE NINTH CIRCUIT
KARINA ELIZABETH CORRALEJO, No. 25-2250
D.C. No.
Plaintiff-Appellant, 2:22-cv-00673-DMC
v.
MEMORANDUM*
FRANK BISIGNANO, Commissioner of
Social Security,
Defendant-Appellee.
Appeal from the United States District Court
for the Eastern District of California
Dennis M. Cota, Magistrate Judge, Presiding
Submitted November 18, 2025
San Francisco, California
Before: BOGGS**, BRESS, and MENDOZA, Circuit Judges.
Karina Corralejo appeals the district court’s order affirming the denial of her
application for Supplemental Security Income and Disability Insurance Benefits.
She contends that the Administrative Law Judge (“ALJ”) erred at multiple stages of
*
This disposition is not appropriate for publication and is not precedent
except as provided by Ninth Circuit Rule 36-3.
**
The Honorable Danny J. Boggs, United States Circuit Judge for the
Sixth Circuit U.S. Court of Appeals, sitting by designation.
the five-step analysis used to assess whether a claimant is disabled. 20 C.F.R.
§ 416.920. Because none of these arguments has merit, we affirm.
1. Social Security regulations create a five-step sequential evaluation
process to determine whether an individual is disabled and entitled to benefits. 20
C.F.R. §§ 404.1520, 416.920. The Social Security Act provides that “[t]he findings
of the Commissioner of Social Security as to any fact, if supported by substantial
evidence, shall be conclusive.” 42 U.S.C. § 405(g). Substantial evidence, while
requiring more than a mere scintilla, asks only whether a reasonable mind could
accept the evidence as adequate to support the conclusion. Biestek v. Berryhill, 587
U.S. 97, 103 (2019). Review is thus highly deferential. Indeed, if “evidence is
susceptible to more than one rational interpretation, the ALJ’s decision must be
affirmed.” Smartt v. Kijakazi, 53 F.4th 489, 494 (9th Cir. 2022) (internal quotation
marks omitted).
2. Neither party contests the ALJ’s step-one determination, so we begin at
step two: is the individual’s condition medically severe? While the ALJ did find
that Corralejo had the severe impairment of diabetes mellitus, Corralejo argues that
the ALJ’s determination that she had no other severe impairments was arbitrary and
unsupported by substantial evidence. That argument fails; we do not reverse for
step-two errors unless they also affect the ALJ’s analysis of the claimant’s residual
functional capacity (“RFC”) for work in relation to steps four and five and could
2 25-2250
affect the ultimate determination. Lewis v. Astrue, 498 F.3d 909, 911 (9th Cir. 2007);
Stout v. Comm’r, Soc. Sec. Admin., 454 F.3d 1050, 1055 (9th Cir. 2006). Here, any
alleged step-two error with respect to other conditions was immaterial because the
ALJ correctly considered only diabetes in his RFC analysis.
In formulating an RFC, the ALJ is only required to consider functional
limitations that the claimant establishes. See, e.g., Burch v. Barnhart, 400 F.3d 676,
684 (9th Cir. 2005). Corralejo testified at her hearing that she stopped working due
to diabetes and pregnancy, and that nothing besides diabetes would keep her from
working again. She also did not assert during the administrative process that
anything other than variable blood sugar and a bone island in her left knee limited
her functioning, claiming that the latter left her unable to walk more than half a block
without pain. With respect to the knee pain, however, “a claimant who alleges
disability based on subjective symptoms must produce objective medical evidence
of an underlying impairment which could reasonably be expected to produce the
pain or other symptoms alleged.” Smolen v. Chater, 80 F.3d 1273, 1281 (9th Cir.
1996) (internal quotations omitted). Corralejo has produced no objective evidence
of this underlying bone island. Thus, the ALJ only needed to consider diabetes in
his RFC analysis, which he did.
3. At step three, the ALJ must ask whether the claimant’s severe and non-
severe medical conditions, by themselves or in combination, meet or equal the
3 25-2250
severity of a listing of medical criteria that is set forth in The Listing of Impairments,
20 C.F.R., Part 404, Subpart P, Appendix 1 (‘the Appendix’). See Tackett v. Apfel,
180 F.3d 1094, 1099 (9th Cir. 1999). Here, the ALJ found that they did not, and we
find no error in that determination. Corralejo has nowhere explained how her
diabetes, by itself or in combination with other impairments, meets or medically
equals any body-system listing.
Corralejo nevertheless argues that the ALJ’s step-three discussion was mere
boilerplate, and she cites Lewis v. Apfel, 236 F.3d 503, 507 (9th Cir. 2001), for the
proposition that boilerplate is insufficient to support a step-three finding. But there
is no step-three error where a claimant “offer[s] no theory . . . as to how [her
conditions] combine[] to equal a listed impairment.” Id. at 514. Corralejo has not
identified any specific listing the ALJ should have considered. While she contends
for the first time in her reply brief that the ALJ had an independent duty to find an
applicable listing, that argument is waived. Greenwood v. F.A.A., 28 F.3d 971, 977
(9th Cir. 1994) (“We review only issues which are argued specifically and distinctly
in a party’s opening brief.”).
4. The ALJ then proceeded to determine Corralejo’s RFC for steps four
and five of the analysis. He found that Corralejo had the RFC to perform medium-
exertion work as defined by 20 C.F.R. § 416.967(c), “except that she is limited to
frequent bilateral fingering” and could not climb any surfaces or be exposed to even
4 25-2250
moderate hazards such as unprotected heights. Substantial evidence supported the
ALJ’s RFC assessment. The ALJ drew heavily from the RFC conclusions in Dr.
Schwartz’s consultative examination. Corralejo does not question its reliability in
her opening brief and thus forfeits any such argument. Greenwood, 28 F.3d at 977.
To the extent that there is evidence that might undercut the ALJ’s RFC finding, it
consists almost entirely of the claimant’s own testimony and is inconsistent with the
medical records, which show normal physical-examination results. Corralejo has
forfeited any argument that the ALJ improperly discounted her subjective statements
by failing to raise the point below or in her opening brief.
5. On appeal, Corralejo does not challenge the ALJ’s step-four
determination that she had no past relevant work, so we continue to step five.
Corralejo’s objection to the ALJ’s analysis at this step is that it “relied on a legally
insufficient RFC.” Hence, she raises no independent step-five argument.
AFFIRMED.
5 25-2250
Plain English Summary
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS DEC 31 2025 MOLLY C.
Key Points
01NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS DEC 31 2025 MOLLY C.
02COURT OF APPEALS FOR THE NINTH CIRCUIT KARINA ELIZABETH CORRALEJO, No.
03MEMORANDUM* FRANK BISIGNANO, Commissioner of Social Security, Defendant-Appellee.
04Cota, Magistrate Judge, Presiding Submitted November 18, 2025 San Francisco, California Before: BOGGS**, BRESS, and MENDOZA, Circuit Judges.
Frequently Asked Questions
NOT FOR PUBLICATION FILED UNITED STATES COURT OF APPEALS DEC 31 2025 MOLLY C.
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