FILED
                                                                      United States Court of Appeals
                      UNITED STATES COURT OF APPEALS                          Tenth Circuit

                             FOR THE TENTH CIRCUIT                          January 29, 2019
                         _________________________________
                                                                          Elisabeth A. Shumaker
                                                                              Clerk of Court
 THOMAS E. DEARDORFF,

       Plaintiff - Appellant,

 v.                                                          No. 17-4170
                                                   (D.C. No. 2:16-CV-00397-PMW)
 COMMISSIONER, SSA,                                            (D. Utah)

       Defendant - Appellee.
                      _________________________________

                             ORDER AND JUDGMENT*
                         _________________________________

Before HOLMES, O’BRIEN, and CARSON, Circuit Judges.
                  _________________________________

      Thomas E. Deardorff applied for Social Security disability benefits. The

Commissioner of the Social Security Administration denied his application, and the

district court affirmed that decision. Mr. Deardorff now appeals. Exercising

jurisdiction under 28 U.S.C. § 1291 and 42 U.S.C. § 405(g), we reverse and remand

for further proceedings.




      *
        After examining the briefs and appellate record, this panel has determined
unanimously to honor 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
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 This order and judgment is not binding precedent,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. It
may be cited, however, for its persuasive value consistent with Fed. R. App. P. 32.1
and 10th Cir. R. 32.1.
      I. Background

      Mr. Deardorff served for sixteen years in the military. After suffering a neck

injury while serving in combat in Iraq, he was medically retired from the military.

The Veteran’s Administration (VA) has given him a 100% disability rating.

      In December 2014, he applied for a period of disability and disability

insurance benefits, alleging disability beginning October 25, 2013. The claim was

denied initially and on reconsideration. Mr. Deardorff then requested and received a

hearing before an Administrative Law Judge (ALJ). The ALJ concluded

Mr. Deardorff was not disabled after determining at step four of the sequential

analysis1 that he was capable of performing his past relevant work as a security

guard. Mr. Deardorff appealed and the district court affirmed the Commissioner’s

decision.

      II. Discussion

      “We review the Commissioner’s decision to determine whether the factual

findings are supported by substantial evidence in the record and whether the correct

legal standards were applied.” Wells v. Colvin, 

, 1067 (10th Cir. 2013)

(internal quotation marks omitted). Mr. Deardorff raises four issues on appeal. We

conclude the first two issues involve reversible error and require remand. We do not




      1
         “[A]n ALJ is required to assess whether or not the claimant is disabled in a
five-step, sequential analysis.” Allen v. Barnhart, 

, 1142 (10th Cir.
2004). At step four, the ALJ considers whether “[an] impairment prevents the
claimant from performing his or her past work.” 

the third and fourth issues because they may be impacted by the ALJ’s

consideration of the first two issues on remand.

                                           A.

      In his decision, the ALJ stated “there was no evidence of record regarding

most of the conditions listed [in the VA disability rating], including knee disorder

and migraines.” Aplt. App. at 48. Mr. Deardorff argues the ALJ’s conclusion

“that . . . there is no evidence of Mr. Deardorff’s migraines is plainly incorrect. This

resulted in the ALJ’s failure to fully and completely assess Mr. Deardorff’s Residual

Functional Capacity (RFC) and is reversible error.” Aplt. Br. at 31. We agree.

      The ALJ found at step two of the sequential process Mr. Deardorff had the

following severe impairments: “degenerative disc disease of the cervical spine;

obesity; depression; and post-traumatic stress disorder.” Aplt. App. at 44. The ALJ

also noted Mr. Deardorff’s records indicated he likely had carpal tunnel syndrome

and thoracic spine spondylosis, but the ALJ found these impairments were not severe.

      An ALJ must “consider all of the claimant’s medically determinable

impairments, singly and in combination.” Salazar v. Barnhart, 

, 621

(10th Cir. 2006). And “the failure to consider all impairments is reversible error.”

See 

did not mention or make any findings as to whether Mr. Deardorff’s

headaches were a severe impairment at step two. But because he found at least one

severe impairment, that error is harmless. See Allman v. Colvin, 

(10th Cir. 2016) (“[T]he failure to find a particular impairment severe at step two is

not reversible error when the ALJ finds that at least one other impairment is

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severe.”). But, at step four, the ALJ “must consider the limiting effects of non-severe

impairments in determining the claimant’s RFC.” 

never mentioned, let

alone considered the effects of, migraines or headaches at step four in determining

Mr. Deardorff’s RFC.

      In fact, the ALJ mentions migraines in his decision only in one paragraph. He

notes the VA’s disability rating was based on a number of conditions, including

migraines, and then he goes on to state there is no evidence of record regarding

migraines. See Aplt. App. at 48. Contrary to this statement, however, there is

evidence in the record about Mr. Deardorff’s migraines, as well as his suffering from

severe headaches.

      i. Evidence of Migraines and Headaches

      At his hearing before the ALJ, Mr. Deardorff was asked about the medication

he was taking and, in listing his medications, he testified that he took tizanidine to

“help stop headaches.” 

His attorney later restated, “you’re taking

medication for migraines,” and Mr. Deardorff replied, “Yes, sir.” 

His

attorney asked him to describe the migraines and how often they occur and

Mr. Deardorff responded: “I have them for days on end and once one’s gone, it

comes back in a couple of days. So they’re just non-stop.” 

then

asked: “Are you able to read or concentrate or how does it affect—how do the

migraines affect you?” And he replied, “you get used to it. You try to do the best you

can with it. If you don’t want to hear something or you don’t want to listen to

something, you just don’t. If you don’t want to read it, don’t read it. If your head

                                            4
hurts too bad, don’t read it.” 

attorney asked, “Does that happen a lot

where [your] head hurts too bad that you can’t read?” He answered yes, and said that

it happened “on a daily basis . . . [a]bout three to four times a week.” 

testified later that he had difficulties with driving because it hurt to turn his head both

directions. He said: “If I turn it too far, instant headache. Almost a blinding

headache.” 

In summarizing Mr. Deardorff’s hearing testimony, the ALJ

never mentioned this testimony. See 

       In addition, the record contains medical-record evidence of Mr. Deardorff’s

history of migraines dating back to the summer of 2009. In July 2009, he complained

to his medical provider of “headaches, visual disturbances with associated nausea,

photophobia and intolerance to sound.” 

A few weeks later, in August

2009, he went to the doctor and presented “with [headache] symptoms for the past

4-5 days. Started in the right posterior and radiates around to behind the left eye.

Has had photophobia and nausea. History of migraines. Currently on Topamax.” 

notes conclude: “Patient with headache consistent with migraine” and

state “Continue with the Topamax. Try to gradually increase dose.” 

2011, Mr. Deardorff called the VA clinic to “report[] having a headache over the last

three days & not responding to [over the counter]: Aleve.” 

In January

2012, he went to the doctor “with headaches, symptoms off and on for the past three

months.” 

He was assessed with “tension-type headaches” but the notes

also state, “[h]eadaches localize to the front behind his eye and last[] for several

days, suggestive of a component of a migraine.” 

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      On February 6, 2013, he reported to Virginia Mol, a nurse practitioner at the

VA clinic, that a “nerve block helped with neck pain,” but his “headaches [were]

only gone for few days.” 

On September 24, 2013, Mr. Deardorff called

the VA to report “I think I need to see Doc Mol again for my headaches.” 

He stated that he was experiencing “bad headaches again, and I mean excruciating

pain.” 

that these headaches “last for days,” further explaining that

“he has about one of these headaches per month and each time the headache will last

2-4 days.” 

30, 2013, Mr. Deardorff had an appointment at the VA clinic to

follow up on “neck pain and headaches. . . . Pain relief lasts [a] few months then he

starts having more pain and headaches.” 

On November 6, 2013,

Mr. Deardorff had an MRI of his cervical spine. The reason for the imaging states:

“neck pain + headaches” and the clinical indication states “[n]eck pain, headaches,

vertigo.” 

      On December 12, 2013, a VA provider reported a phone call with

Mr. Deardorff. The notes state: “The veteran is endorsing ongoing difficulties with

neck & back pain and debilitating migraine headaches.” 

“The veteran is

seeking treatment to alleviate the migraine headaches . . . .” 

The

assessment states: “Persistent neck/back pain and migraine headaches. Impacting

ability to work.” 

11, 2014, Mr. Deardorff was seen for a pre-surgery appointment. In

addition to his neck and arm pain, he also complained “of significant occipital

                                           6
headaches which radiate up into the top of his head. He is on medication for these

but it offers no relief. He feels like these flare up when his neck is really bad.” 

And in his review of systems for that same visit, the box for

“Migraines/H[eadaches]” is checked. 

       On March 13, 2014, Mr. Deardorff had a cervical spine decompression and

fusion surgery. On April 18, 2014, he had a post-surgery, follow-up appointment.

The notes state: “His headaches are slightly better, although they are still present.”

       On February 13, 2015, Mr. Deardorff had a one-year, post-surgery follow-up

appointment. The notes indicate that at the six-month check-up in August 2014,

“[h]e still had some continued headaches starting in the back of his neck and

wrapping around to the forehead.” 

The notes continue: “He gets those

nearly every day, not severe enough to limit his activity.” 

       On February 23, 2015, Mr. Deardorff was seen for complaints of bilateral hand

numbness, but in reporting his symptoms he also reported “headaches, nausea, and

vertigo accompanying neck symptoms (all predated surgery).” 

The

notes indicate “[h]e takes tizanidine for headaches.” 

27, 2015, Mr. Deardorff called in to the VA clinic to report “that

headaches get so intense over back of neck and around to both eyes, and thru the

shoulders and radiates down arms. The pain feel[s] like sticking a dull butter knife

and then shove in eye and remove it!” 

On August 28, 2015, he had a

neurology consult at the VA clinic for his headaches. The notes state:

                                            7
      He also describes a headache suspicious for migraine with aura. He has
      prodromal aura consisting of “shooting stars” across his visual field
      followed 30-60 minutes later by unilateral R occipital pain that radiates
      to the front and is accompanied by photophobia, phonophobia, nausea.
      OTC medications such as ibuprofen, Tylenol, aleve have not helped. He
      usually goes and sits in a dark room with minimal sounds. He says the
      headaches last for five days at a time.

He was assessed with having “migraine with aura” and he was started on a

new medication – Verapamil. 

      ii. District Court Decision

      In his brief to the district court, Mr. Deardorff recounted most of the evidence

outlined above. See 

He argued the ALJ’s conclusion that “there was

no evidence of Mr. Deardorff’s migraines is plainly incorrect” and “Mr. Deardorff’s

migraine headaches are a medically determinable severe impairment.” 

He argued in the alternative: “Even assuming Mr. Deardorff’s migraine headaches

are non-severe (which Petitioner does not concede), the ALJ must still account for

any limitations caused by all medically determinable impairments in his RFC.”

      Though the district court acknowledged “[t]he ALJ did not address Plaintiff’s

migraine complain[t]s at step two,” 

it then went on to state: “However,

the ALJ proceeded to step three and considered Plaintiff’s . . . migraine headaches

when assessing Plaintiff’s RFC.” 

of that statement, the district court

cites to page 24 of the administrative record (which is page 48 of Appellant’s

Appendix). See 

We do not see any support for the district court’s

statement on that page of the ALJ decision, or on any other page. See 

                                           8
42-51. The ALJ did not consider Mr. Deardorff’s migraine headaches in assessing

his RFC but instead stated there was no record evidence of migraines.

        The district court then went on to characterize Mr. Deardorff’s argument

regarding his migraine headaches like this: “Plaintiff claims that the ALJ erred by

giving little weight to Plaintiff’s allegations that he suffered from . . . migraine

headaches.” 

But Mr. Deardorff did not argue about the weight the ALJ

assigned to his allegations about his migraines. Rather, he argued the ALJ erred in

concluding there was no evidence of migraines. He asserted that his migraines were

a medically determinable severe impairment and he therefore wanted the case

“remanded for consideration of [his] headaches and their limiting effects.” 

        Further, the district court appears to have overlooked the evidence

Mr. Deardorff cited to in support of his argument. In his brief to the district court,

Mr. Deardorff cited to medical evidence in the record pertaining to his headaches.

See 

¶¶ 38-52. The district court did not, however, acknowledge or

discuss this medical evidence. Instead, the district court characterized the evidence

supporting Mr. Deardorff’s headache argument in this way: “Plaintiff cited the VA’s

disability determination in support of his claim that he suffered from migraine

headaches.” 

The court then noted, “[t]he ALJ, however, found that

there was no evidence of record regarding Plaintiff’s migraine symptoms.” 

(internal quotation marks omitted). The district court then appears to provide a

post-hoc rationale for rejecting Mr. Deardorff’s argument (as characterized by the

                                             9
court) by quoting a VA determination that Mr. Deardorff’s “headaches are not

prostrating in nature.” 

sentences are the basis for the district court’s

conclusion that there was “no reversible error in the ALJ’s decision to give little

weight to Plaintiff’s claim[] that he suffered from . . . migraine headaches.” 

court ignored the medical evidence Mr. Deardorff presented in his

brief about his headaches. And the district court made it seem as though the ALJ did

consider Mr. Deardorff’s headaches, but assigned them little weight. The district

court’s decision did not adequately address Mr. Deardorff’s arguments that the ALJ

erred in stating there was no evidence of record regarding his migraines and in failing

to consider his migraines or headaches when formulating the RFC.

      iii. Commissioner’s Arguments on Appeal

      To defend the ALJ’s silence on this issue, the Commissioner argues: “Medical

providers believed that Deardorff’s headaches were not migraine headaches but

instead related to his neck condition, which the ALJ extensively discussed,” Aplee.

Br. at 44, and “[t]he ALJ’s assessment of Deardorff’s RFC addressed the supported

limitations arising from his neck condition,” 

While it is true that some

providers—and even Mr. Deardorff himself at times—believed his headaches were

related to his neck condition, the ALJ never made such a finding or statement. And,

as noted above, there are other medical records that suggest Mr. Deardorff suffered

from traditional migraines not associated with his neck condition. The ALJ did not

acknowledge or discuss any of the evidence related to Mr. Deardorff’s headaches.

The Commissioner’s post hoc rationale for the ALJ’s failure to discuss the headaches

                                           10
and any limitations they caused is not a basis on which the ALJ’s decision can be

affirmed. See Carpenter v. Astrue, 

, 1267 (10th Cir. 2008) (“The

magistrate judge’s (and appellee’s) post hoc rationale is improper because it usurps

the agency’s function of weighing and balancing the evidence in the first instance.

Judicial review is limited to the reasons stated in the ALJ’s decision[.]” (citation

omitted)).

      Even if the headaches were not a separate impairment and even if they were

related to the neck condition, the ALJ should have discussed them as a symptom of

the neck impairment given the significant evidence in the record. As the ALJ noted

in his decision, once he determines there is a medically determinable impairment, as

he did with the neck condition, then he “must evaluate the intensity, persistence, and

limiting effects of the claimant’s symptoms to determine the extent to which they

limit the claimant’s functioning.” Aplt. App. at 47.

      In reviewing the evidence related to Mr. Deardorff’s neck condition, the ALJ

cited to medical records for some symptoms, but ignored the headache symptoms

even though they are noted in those same records. For example, in referring to a

medical record about Mr. Deardorff’s worsening neck and arm pain, the ALJ

discussed the symptoms of Mr. Deardorff’s balance getting worse and his constantly

dropping objects, see 

(citing Ex. 3F/13, which appears at Aplt. App. at

480). But that same record further states “[Mr. Deardorff] also is complaining of

significant occipital headaches which radiate up into the top of his head. He is on

medication for these but it offers no relief. He feels like these flare when his neck is

                                           11
really bad.” 

Similarly, in discussing another medical record from one of

Mr. Deardorff’s post-surgery follow-up appointments, the ALJ noted Mr. Deardorff

“complained of ongoing numbness in his bilateral upper extremities and tingling in

his lower extremities.” 

(citing Ex. 7F/51, which appears at Aplt. App. at

813). But the ALJ did not mention Mr. Deardorff’s complaints at the same

appointment of “headaches, nausea, and vertigo accompanying neck symptoms.” 

      The Commissioner also appears to misrepresent the record by asserting that

“the ALJ considered Deardorff’s activities such as spending hours building and

playing with model railroads—activities that show an ability to perform detailed

work and concentrate for extended periods—as inconsistent with constant,

debilitating headaches.” Aplee. Br. at 45 (citing Aplt. App. 51, 606, 113) (emphasis

added). There is no ALJ finding—on page 51 or elsewhere—about Mr. Deardorff’s

activities being inconsistent with “constant, debilitating headaches.” The

Commissioner’s representation that such a finding exists is not accurate. The term

“headaches” does not appear in the ALJ decision, and the term “migraines” is

mentioned only twice in one paragraph. This argument is yet another attempt to

provide an improper post hoc rationale for the ALJ’s decision.

      The ALJ erred by failing to discuss the significant evidence of Mr. Deardorff’s

headaches and how they might impact his functional abilities—either as a separate

impairment or as a symptom of his neck condition. We therefore remand for the ALJ

to consider the evidence of Mr. Deardorff’s headaches in assessing his RFC.

                                          12
                                          B.

      Mr. Deardorff next argues the ALJ erred in assessing his RFC by failing to

include any limitations for his hands and arms, other than limitations on overhead

reaching. He contends there was objective record evidence of other manipulative

limitations related to his difficulties with carrying items without dropping them,

decreased grip strength, loss of coordination, numbness and tingling. We do not

necessarily agree with all aspects of this argument, but we do agree the ALJ needs to

discuss additional evidence of Mr. Deardorff’s hand limitations on remand.

      The ALJ explained that, before his March 2014 spinal surgery,

Mr. Deardorff’s “[p]hysical examination revealed deficits caused by [his] cervical

spine degeneration.” Aplt. App. at 47. The medical records note Mr. Deardorff’s

diminished hand strength, and the ALJ observed that, “[Mr. Deardorff’s] physical

examination was consistent with his complaints that he repeatedly dropped objects.”

ALJ painted a different picture of Mr. Deardorff’s hand issues after his

surgery. At his post-surgery follow-up appointment in August 2014, the ALJ noted

Mr. Deardorff reported some continued hand clumsiness but that he exhibited normal

grip strength on examination. In February 2015, the ALJ noted Mr. Deardorff

complained of ongoing numbness in his bilateral upper extremities. Upon

examination, he did exhibit diminished sensation in his upper extremities, but had

normal grip strength. To further support the determination that Mr. Deardorff did not

have any manipulative limitations (other than limited overhead reaching due to

                                          13
diminished sensation), the ALJ cited to three separate physical examinations from

June, July and September 2015 where Mr. Deardorff exhibited normal strength in his

bilateral extremities.

       The Commissioner points to the ALJ’s recitation of the post-surgery evidence

showing Mr. Deardorff exhibited full grip strength to support the argument that “later

evidence of full strength demonstrates why [the earlier finding of diminished hand

strength] did not mandate the inclusion of additional manipulative limitations in

Deardorff’s RFC.” Aplee. Br. at 48. The problem, however, is that “the ALJ’s

discussion appears only to highlight the physical exams in which Mr. Deardorff

exhibited normal strength” and “does not appear to acknowledge that studies also

showed Mr. Deardorff experiences decreased grip strength, impaired coordination

and dexterity, altered deep tendon reflexes, or the fact that his hand numbness,

weakness, and coordination cannot be corrected by neck surgery.” Reply Br. at 6-7

(citing to Aplt. App. at 1062, 1172, 2203-05).

       We agree with Mr. Deardorff that there is conflicting evidence from two

physical examinations during the relevant time period, but the ALJ failed to discuss

those examinations. In May 2015, Mr. Deardorff was seen at the VA clinic. On

physical examination it was noted: “strength decreased in all extremities” and he

was assessed with “decreased grip strength.” Aplt. App. at 1172. In July 2015,

Mr. Deardorff was again seen at the VA clinic. On physical examination, it was

noted: “weakness, sensory loss or altered [deep tendon reflexes] suggestive of a

peripheral nerve injury; . . . weakness and decreased dexterity in hands.” 

2203-04. There is also a note regarding an abnormal study in March 2015 that

showed “electrodiagnostic evidence of bilateral median sensorimotor

mononeuropathy at the wrists (carpal tunnel syndrome).” 

The record

concludes with another note indicating Mr. Deardorff had been seen by “ortho spine

and they do not feel his hand numbness, weakness, and coordination of hands are

anything that can be improved with cervical surgery. Have recommended [patient]

be seen in neuro.” 

      “[A]n ALJ is not required to discuss every piece of evidence.” Clifton v.

, 1009-1010 (10th Cir. 1996). But “in addition to discussing

the evidence supporting his decision, the ALJ also must discuss . . . significantly

probative evidence he rejects.” 

improper for the ALJ to pick and choose

among medical reports, using portions of evidence favorable to his position while

ignoring other evidence.” Hardman v. Barnhart, 

, 681 (10th Cir. 2004).

The ALJ erred by failing to discuss the conflicting probative evidence noted above.

The evidence demonstrated Mr. Deardorff’s examination results were not all normal,

but instead showed decreased grip strength, impaired dexterity, altered deep tendon

reflexes, abnormal electrodiagnostic studies, and the inability for his hand issues to

be improved with cervical surgery. On remand, the ALJ should discuss this

conflicting evidence regarding Mr. Deardorff’s hand issues (whether as a result of his

neck impairment, carpal tunnel syndrome, peripheral neuropathy, or a combination of

these impairments) when assessing his RFC.



                                           15
                                            C.

       Mr. Deardorff also argues the ALJ erred in evaluating his treating source

opinions and in assessing his credibility. Because the ALJ did not consider the

evidence regarding Mr. Deardorff’s headaches or the conflicting evidence regarding

his hand limitations, we decline to rule on these two issues as the ALJ’s

consideration of that evidence on remand may also impact these issues.

       III. Conclusion

       For the foregoing reasons, we reverse and remand to the district court with

instructions to remand to the agency for further proceedings consistent with this decision.


                                             Entered for the Court


                                             Terrence L. O’Brien
                                             Circuit Judge




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