Managing Disability Evaluations
Structures psychiatric disability assessments with functional capacity documentation, work limitation analysis, and compliance with SSA, ADA, FMLA, and workers' compensation standards.
Why This Skill Exists
Psychiatric disability evaluations determine whether an individual's mental health condition impairs their ability to work and, if so, to what degree. These evaluations carry significant consequences — they determine access to Social Security Disability Insurance (SSDI), Supplemental Security Income (SSI), long-term disability benefits, Family and Medical Leave Act (FMLA) protections, Americans with Disabilities Act (ADA) reasonable accommodations, and workers' compensation benefits. Over 30% of SSDI beneficiaries qualify based on mental health conditions, making psychiatric disability the largest diagnostic category in the disability system.
The evaluation must be objective, thorough, and focused on functional capacity rather than diagnosis alone. A diagnosis of major depressive disorder does not automatically confer disability — the evaluator must document how specific symptoms translate into specific functional limitations in work-related activities. The SSA uses the Psychiatric Review Technique (PRT) and the Mental Residual Functional Capacity (MRFC) assessment to evaluate claims. Evaluators who fail to document functional limitations with specificity, or who rely solely on the claimant's self-report without corroborating evidence, produce reports that are either rejected by adjudicators or challenged on appeal.
Checkpoint A: Pre-Draft Intake (Mandatory)
- What type of disability evaluation is requested? (SSA initial evaluation, SSA continuing disability review, long-term disability insurance, short-term disability, FMLA, ADA accommodation, workers' compensation, VA disability) — default: specify type
- Who is the referral source? (SSA/DDS, attorney, employer, insurance company, self-referral) — default: identify
- What is the specific legal or regulatory standard? (SSA five-step sequential evaluation, ADA substantial limitation of major life activity, FMLA serious health condition, WC arising out of and in the course of employment) — default: identify applicable standard
- What is the claimant's current work status? (employed full-time, part-time, unemployed, never worked) — default: document
- What is the claimant's work history? (past relevant work, physical and mental demands of prior jobs) — default: obtain
- What treatment has the claimant received? (current treatment, treatment compliance, treatment response) — default: document treatment history
- Are there co-occurring medical conditions contributing to disability? (chronic pain, neurological conditions, cardiovascular disease) — default: identify
- Is malingering assessment required for this context? — default: assess response validity in all forensic/disability evaluations
Documents to Request
- SSA Function Report (Form SSA-3373) completed by claimant
- SSA Work History Report (Form SSA-3369)
- All psychiatric treatment records (outpatient notes, hospitalization records, medication history)
- Psychological and neuropsychological testing reports
- Primary care and specialist medical records
- Employment records, performance evaluations, disciplinary actions
- Prior disability determinations and appeal decisions
- Vocational evaluation reports
- Educational records (highest level achieved, special education history)
- Legal records if relevant (criminal history, incarceration records)
- Collateral statements from family, former employers, caseworkers
Step 1: Clinical Evaluation and Diagnostic Assessment
Conduct a thorough psychiatric evaluation focused on the functional impact of psychiatric illness:
Psychiatric history with disability focus:
- Current psychiatric diagnoses with DSM-5-TR criteria documentation
- Onset, course, and severity trajectory (chronic vs. episodic, improving vs. stable vs. worsening)
- Treatment history: All medications tried (name, dose, duration, response, reason for discontinuation), psychotherapy (type, frequency, duration, response), hospitalizations (dates, reasons, lengths of stay)
- Treatment compliance and barriers to treatment (transportation, insurance, side effects, insight)
- Current treatment: medications, therapy, frequency of visits, treatment response
- Substance use history (SUD may be primary, comorbid, or contributing to disability)
Mental status examination — document with specificity relevant to functional impact:
- Concentration and attention deficits (inability to sustain focus affects workplace productivity)
- Processing speed (slowed responses affect time-sensitive work tasks)
- Memory impairment (affects ability to learn new tasks, follow instructions)
- Social anxiety or paranoia (affects ability to interact with coworkers, supervisors, public)
- Emotional dysregulation (affects ability to respond appropriately to workplace stress and criticism)
- Psychomotor retardation or agitation (affects physical capacity for work tasks)
- Disorganized thinking (affects ability to plan, sequence, and complete multi-step tasks)
Step 2: Functional Capacity Assessment — The "Paragraph B" Criteria (SSA)
The SSA evaluates psychiatric disability using four broad areas of functioning (the "Paragraph B" criteria from the Listings of Impairments, Section 12.00):
1. Understand, remember, or apply information:
- Ability to understand and remember instructions
- Ability to learn new things
- Ability to apply information to new situations
- Ability to use judgment in decisions
- Rate: No limitation, mild, moderate, marked, extreme
2. Interact with others:
- Ability to relate to and work alongside others
- Ability to respond appropriately to supervisors, coworkers, and the public
- Ability to cooperate with others
- Ability to handle conflicts
- Rate: No limitation, mild, moderate, marked, extreme
3. Concentrate, persist, or maintain pace:
- Ability to focus attention on work activities
- Ability to sustain an ordinary routine without special supervision
- Ability to work at a consistent pace
- Ability to complete tasks in a timely manner
- Rate: No limitation, mild, moderate, marked, extreme
4. Adapt or manage oneself:
- Ability to regulate emotions and behavior
- Ability to adapt to changes
- Ability to maintain personal hygiene and attire
- Ability to be aware of normal hazards and take appropriate precautions
- Rate: No limitation, mild, moderate, marked, extreme
Listing-level severity (meets a "listing"): Marked limitation in 2 of 4 areas OR extreme limitation in 1 of 4 areas. If listings are not met, proceed to Mental Residual Functional Capacity (MRFC) assessment.
Document each rating with specific behavioral evidence. "Marked" means the ability is seriously limited — the individual cannot perform the function in a regular, reliable manner for a full workday/workweek. "Extreme" means the individual cannot perform the function at all.
Step 3: Mental Residual Functional Capacity (MRFC) Assessment
If the claimant does not meet or equal a listed impairment, the MRFC assessment determines what work-related mental activities the claimant can still perform despite limitations:
Understanding and memory:
- Ability to remember locations and work-like procedures
- Ability to understand, remember, and carry out very short and simple instructions
- Ability to understand, remember, and carry out detailed instructions
Sustained concentration and persistence:
- Ability to maintain attention and concentration for extended periods (2-hour increments)
- Ability to perform activities within a schedule, maintain regular attendance, and be punctual within customary tolerances
- Ability to sustain an ordinary routine without special supervision
- Ability to work in coordination with or proximity to others without being distracted
- Ability to make simple work-related decisions
- Ability to complete a normal workday and workweek without interruptions from psychologically based symptoms and to perform at a consistent, acceptable pace
Social interaction:
- Ability to interact appropriately with the general public
- Ability to ask simple questions or request assistance
- Ability to accept instructions and respond appropriately to criticism from supervisors
- Ability to get along with coworkers or peers without distracting them
- Ability to maintain socially appropriate behavior and adhere to basic standards of neatness and cleanliness
Adaptation:
- Ability to respond appropriately to changes in the work setting
- Ability to be aware of normal hazards and take appropriate precautions
- Ability to travel in unfamiliar places or use public transportation
- Ability to set realistic goals or make plans independently
For each item, rate as: not significantly limited, moderately limited, markedly limited, no evidence of limitation, or not ratable on available evidence. Provide narrative support for each rating.
Step 4: Response Validity and Consistency Assessment
All disability evaluations must assess the consistency and credibility of the claimant's presentation:
Consistency checks:
- Compare self-reported limitations with observed functioning during the evaluation
- Compare self-reported limitations with treatment records (does the treatment record support the claimed severity?)
- Compare self-reported limitations with activities of daily living (can the claimant manage finances, drive, shop, cook, maintain hobbies?)
- Compare self-reported symptoms with objective testing (performance validity tests if neuropsych testing is conducted)
- Identify discrepancies between reported disability and documented functional capacity
Structured validity assessment tools (when indicated):
- SIRS-2 (Structured Interview of Reported Symptoms) — gold standard for feigned psychiatric symptoms
- TOMM (Test of Memory Malingering) — for cognitive effort assessment
- MMPI-3 / PAI validity scales — for response style assessment
- M-FAST — brief screening for symptom feigning
Documentation of response validity:
- "The claimant's self-reported limitations [are/are not] consistent with the objective clinical findings, treatment records, and observed functioning during the evaluation."
- Document specific consistencies and inconsistencies
- If malingering is suspected, document the basis (do not diagnose malingering without sufficient evidence — it is a diagnosis of exclusion)
Step 5: Report Writing and Conclusions
Report structure for disability evaluations:
- Identifying information: Claimant name, DOB, SSN (last 4), evaluation date, referral source, type of evaluation
- Sources of information: Records reviewed (with dates and page counts), interviews conducted, tests administered
- History: Presenting complaints, psychiatric history, treatment history, substance use history, medical history, educational history, work history, legal history, daily activities
- Mental status examination: Full MSE with disability-relevant detail
- Testing results: Standardized instruments with scores and interpretation (including validity indices)
- Diagnostic formulation: DSM-5-TR diagnoses with supporting criteria
- Functional capacity assessment: Paragraph B ratings with behavioral evidence, MRFC ratings with narrative support
- Response validity opinion: Consistency of presentation with available evidence
- Conclusions: Direct answer to the referral question with supporting reasoning
Key principles:
- Focus on FUNCTION, not diagnosis — a severe diagnosis with good treatment response may not be disabling; a moderate diagnosis with poor treatment response may be fully disabling
- Document what the claimant CAN do, not just what they cannot do
- Distinguish between psychiatric limitations and volitional choices (non-compliance with treatment without good cause may undermine disability claims)
- Address the specific legal standard (SSA listing criteria, ADA substantial limitation, FMLA serious health condition)
- State conclusions to a reasonable degree of medical/psychiatric certainty
Checkpoint B: Post-Draft Alignment (Mandatory)
- Are DSM-5-TR diagnoses supported by documented criteria (not just claimant report)?
- Are functional limitations documented with specific behavioral evidence (not just symptom labels)?
- Are SSA Paragraph B criteria rated for each of the four domains with supporting evidence?
- Is response validity assessed with documentation of consistency between self-report and objective findings?
- Are conclusions tied to the specific legal standard applicable to the evaluation type?
Quality Audit
Guidelines
- Focus on functional capacity, not diagnosis — a psychiatric disability evaluation that only lists diagnoses without documenting specific functional limitations is useless to adjudicators and will be returned or disregarded.
- Always assess treatment compliance and response — the SSA and most disability systems require that the claimant be receiving and compliant with treatment (or have documented good reasons for non-compliance) before finding disability.
- Document both what the claimant cannot do AND what the claimant can still do — one-sided reports that only document limitations lack credibility and are less persuasive to adjudicators.
- Use behavioral evidence, not conclusory statements — "Claimant was unable to recall 3/3 words after 5 minutes and lost track of the conversation three times during the interview, requiring redirection" is evidence. "Claimant has memory problems" is not.
- Assess response validity in every disability evaluation — the base rate of symptom exaggeration in disability evaluations is estimated at 25-30%. Failure to assess validity is a methodological deficiency.
- Never base disability conclusions solely on the claimant's self-report — corroborate with treatment records, collateral informants, objective testing, and behavioral observations.
- Know the specific legal standard for the type of evaluation — SSA's five-step sequential evaluation differs from ADA's "substantial limitation" standard, which differs from FMLA's "serious health condition" standard. Apply the correct framework.
- When evaluating treatment resistance, document all prior adequate treatment trials — disability claims based on treatment-resistant illness are stronger when the treatment history is thoroughly documented.
1---2name: managing-disability-evaluations3description: Structures psychiatric disability assessments with functional limitations and work capacity documentation. Use when evaluating psychiatric disability, documenting functional limitations, or completing disability forms.4---5
6# Managing Disability Evaluations
7
8Structures psychiatric disability assessments with functional capacity documentation, work limitation analysis, and compliance with SSA, ADA, FMLA, and workers' compensation standards.
9
10## Why This Skill Exists
11
12Psychiatric disability evaluations determine whether an individual's mental health condition impairs their ability to work and, if so, to what degree. These evaluations carry significant consequences — they determine access to Social Security Disability Insurance (SSDI), Supplemental Security Income (SSI), long-term disability benefits, Family and Medical Leave Act (FMLA) protections, Americans with Disabilities Act (ADA) reasonable accommodations, and workers' compensation benefits. Over 30% of SSDI beneficiaries qualify based on mental health conditions, making psychiatric disability the largest diagnostic category in the disability system.
13
14The evaluation must be objective, thorough, and focused on functional capacity rather than diagnosis alone. A diagnosis of major depressive disorder does not automatically confer disability — the evaluator must document how specific symptoms translate into specific functional limitations in work-related activities. The SSA uses the Psychiatric Review Technique (PRT) and the Mental Residual Functional Capacity (MRFC) assessment to evaluate claims. Evaluators who fail to document functional limitations with specificity, or who rely solely on the claimant's self-report without corroborating evidence, produce reports that are either rejected by adjudicators or challenged on appeal.
15
16---
17
18## Checkpoint A: Pre-Draft Intake (Mandatory)
19
201. What type of disability evaluation is requested? (SSA initial evaluation, SSA continuing disability review, long-term disability insurance, short-term disability, FMLA, ADA accommodation, workers' compensation, VA disability) — default: specify type
212. Who is the referral source? (SSA/DDS, attorney, employer, insurance company, self-referral) — default: identify
223. What is the specific legal or regulatory standard? (SSA five-step sequential evaluation, ADA substantial limitation of major life activity, FMLA serious health condition, WC arising out of and in the course of employment) — default: identify applicable standard
234. What is the claimant's current work status? (employed full-time, part-time, unemployed, never worked) — default: document
245. What is the claimant's work history? (past relevant work, physical and mental demands of prior jobs) — default: obtain
256. What treatment has the claimant received? (current treatment, treatment compliance, treatment response) — default: document treatment history
267. Are there co-occurring medical conditions contributing to disability? (chronic pain, neurological conditions, cardiovascular disease) — default: identify
278. Is malingering assessment required for this context? — default: assess response validity in all forensic/disability evaluations
28
29### Documents to Request
30
31- SSA Function Report (Form SSA-3373) completed by claimant
32- SSA Work History Report (Form SSA-3369)
33- All psychiatric treatment records (outpatient notes, hospitalization records, medication history)
34- Psychological and neuropsychological testing reports
35- Primary care and specialist medical records
36- Employment records, performance evaluations, disciplinary actions
37- Prior disability determinations and appeal decisions
38- Vocational evaluation reports
39- Educational records (highest level achieved, special education history)
40- Legal records if relevant (criminal history, incarceration records)
41- Collateral statements from family, former employers, caseworkers
42
43---
44
45## Step 1: Clinical Evaluation and Diagnostic Assessment
46
47Conduct a thorough psychiatric evaluation focused on the functional impact of psychiatric illness:
48
49**Psychiatric history with disability focus:**
50- Current psychiatric diagnoses with DSM-5-TR criteria documentation
51- Onset, course, and severity trajectory (chronic vs. episodic, improving vs. stable vs. worsening)
52- Treatment history: All medications tried (name, dose, duration, response, reason for discontinuation), psychotherapy (type, frequency, duration, response), hospitalizations (dates, reasons, lengths of stay)
53- Treatment compliance and barriers to treatment (transportation, insurance, side effects, insight)
54- Current treatment: medications, therapy, frequency of visits, treatment response
55- Substance use history (SUD may be primary, comorbid, or contributing to disability)
56
57**Mental status examination** — document with specificity relevant to functional impact:
58- Concentration and attention deficits (inability to sustain focus affects workplace productivity)
59- Processing speed (slowed responses affect time-sensitive work tasks)
60- Memory impairment (affects ability to learn new tasks, follow instructions)
61- Social anxiety or paranoia (affects ability to interact with coworkers, supervisors, public)
62- Emotional dysregulation (affects ability to respond appropriately to workplace stress and criticism)
63- Psychomotor retardation or agitation (affects physical capacity for work tasks)
64- Disorganized thinking (affects ability to plan, sequence, and complete multi-step tasks)
65
66---
67
68## Step 2: Functional Capacity Assessment — The "Paragraph B" Criteria (SSA)
69
70The SSA evaluates psychiatric disability using four broad areas of functioning (the "Paragraph B" criteria from the Listings of Impairments, Section 12.00):
71
72**1. Understand, remember, or apply information:**
73- Ability to understand and remember instructions
74- Ability to learn new things
75- Ability to apply information to new situations
76- Ability to use judgment in decisions
77- Rate: No limitation, mild, moderate, marked, extreme
78
79**2. Interact with others:**
80- Ability to relate to and work alongside others
81- Ability to respond appropriately to supervisors, coworkers, and the public
82- Ability to cooperate with others
83- Ability to handle conflicts
84- Rate: No limitation, mild, moderate, marked, extreme
85
86**3. Concentrate, persist, or maintain pace:**
87- Ability to focus attention on work activities
88- Ability to sustain an ordinary routine without special supervision
89- Ability to work at a consistent pace
90- Ability to complete tasks in a timely manner
91- Rate: No limitation, mild, moderate, marked, extreme
92
93**4. Adapt or manage oneself:**
94- Ability to regulate emotions and behavior
95- Ability to adapt to changes
96- Ability to maintain personal hygiene and attire
97- Ability to be aware of normal hazards and take appropriate precautions
98- Rate: No limitation, mild, moderate, marked, extreme
99
100**Listing-level severity (meets a "listing"):** Marked limitation in 2 of 4 areas OR extreme limitation in 1 of 4 areas. If listings are not met, proceed to Mental Residual Functional Capacity (MRFC) assessment.
101
102Document each rating with specific behavioral evidence. "Marked" means the ability is seriously limited — the individual cannot perform the function in a regular, reliable manner for a full workday/workweek. "Extreme" means the individual cannot perform the function at all.
103
104---
105
106## Step 3: Mental Residual Functional Capacity (MRFC) Assessment
107
108If the claimant does not meet or equal a listed impairment, the MRFC assessment determines what work-related mental activities the claimant can still perform despite limitations:
109
110**Understanding and memory:**
111- Ability to remember locations and work-like procedures
112- Ability to understand, remember, and carry out very short and simple instructions
113- Ability to understand, remember, and carry out detailed instructions
114
115**Sustained concentration and persistence:**
116- Ability to maintain attention and concentration for extended periods (2-hour increments)
117- Ability to perform activities within a schedule, maintain regular attendance, and be punctual within customary tolerances
118- Ability to sustain an ordinary routine without special supervision
119- Ability to work in coordination with or proximity to others without being distracted
120- Ability to make simple work-related decisions
121- Ability to complete a normal workday and workweek without interruptions from psychologically based symptoms and to perform at a consistent, acceptable pace
122
123**Social interaction:**
124- Ability to interact appropriately with the general public
125- Ability to ask simple questions or request assistance
126- Ability to accept instructions and respond appropriately to criticism from supervisors
127- Ability to get along with coworkers or peers without distracting them
128- Ability to maintain socially appropriate behavior and adhere to basic standards of neatness and cleanliness
129
130**Adaptation:**
131- Ability to respond appropriately to changes in the work setting
132- Ability to be aware of normal hazards and take appropriate precautions
133- Ability to travel in unfamiliar places or use public transportation
134- Ability to set realistic goals or make plans independently
135
136For each item, rate as: not significantly limited, moderately limited, markedly limited, no evidence of limitation, or not ratable on available evidence. Provide narrative support for each rating.
137
138---
139
140## Step 4: Response Validity and Consistency Assessment
141
142All disability evaluations must assess the consistency and credibility of the claimant's presentation:
143
144**Consistency checks:**
145- Compare self-reported limitations with observed functioning during the evaluation
146- Compare self-reported limitations with treatment records (does the treatment record support the claimed severity?)
147- Compare self-reported limitations with activities of daily living (can the claimant manage finances, drive, shop, cook, maintain hobbies?)
148- Compare self-reported symptoms with objective testing (performance validity tests if neuropsych testing is conducted)
149- Identify discrepancies between reported disability and documented functional capacity
150
151**Structured validity assessment tools (when indicated):**
152- SIRS-2 (Structured Interview of Reported Symptoms) — gold standard for feigned psychiatric symptoms
153- TOMM (Test of Memory Malingering) — for cognitive effort assessment
154- MMPI-3 / PAI validity scales — for response style assessment
155- M-FAST — brief screening for symptom feigning
156
157**Documentation of response validity:**
158- "The claimant's self-reported limitations [are/are not] consistent with the objective clinical findings, treatment records, and observed functioning during the evaluation."
159- Document specific consistencies and inconsistencies
160- If malingering is suspected, document the basis (do not diagnose malingering without sufficient evidence — it is a diagnosis of exclusion)
161
162---
163
164## Step 5: Report Writing and Conclusions
165
166**Report structure for disability evaluations:**
1671. **Identifying information:** Claimant name, DOB, SSN (last 4), evaluation date, referral source, type of evaluation
1682. **Sources of information:** Records reviewed (with dates and page counts), interviews conducted, tests administered
1693. **History:** Presenting complaints, psychiatric history, treatment history, substance use history, medical history, educational history, work history, legal history, daily activities
1704. **Mental status examination:** Full MSE with disability-relevant detail
1715. **Testing results:** Standardized instruments with scores and interpretation (including validity indices)
1726. **Diagnostic formulation:** DSM-5-TR diagnoses with supporting criteria
1737. **Functional capacity assessment:** Paragraph B ratings with behavioral evidence, MRFC ratings with narrative support
1748. **Response validity opinion:** Consistency of presentation with available evidence
1759. **Conclusions:** Direct answer to the referral question with supporting reasoning
176
177**Key principles:**
178- Focus on FUNCTION, not diagnosis — a severe diagnosis with good treatment response may not be disabling; a moderate diagnosis with poor treatment response may be fully disabling
179- Document what the claimant CAN do, not just what they cannot do
180- Distinguish between psychiatric limitations and volitional choices (non-compliance with treatment without good cause may undermine disability claims)
181- Address the specific legal standard (SSA listing criteria, ADA substantial limitation, FMLA serious health condition)
182- State conclusions to a reasonable degree of medical/psychiatric certainty
183
184---
185
186## Checkpoint B: Post-Draft Alignment (Mandatory)
187
1881. Are DSM-5-TR diagnoses supported by documented criteria (not just claimant report)?
1892. Are functional limitations documented with specific behavioral evidence (not just symptom labels)?
1903. Are SSA Paragraph B criteria rated for each of the four domains with supporting evidence?
1914. Is response validity assessed with documentation of consistency between self-report and objective findings?
1925. Are conclusions tied to the specific legal standard applicable to the evaluation type?
193
194---
195
196## Quality Audit
197
198- [ ] Type of disability evaluation identified with applicable legal standard
199- [ ] All records reviewed are listed with specificity
200- [ ] Complete psychiatric history obtained with treatment compliance documentation
201- [ ] Mental status examination documented with functional-capacity-relevant detail
202- [ ] DSM-5-TR diagnoses documented with supporting criteria
203- [ ] Paragraph B criteria rated for all four domains with behavioral evidence
204- [ ] MRFC items assessed with narrative justification
205- [ ] Treatment compliance and barriers to treatment documented
206- [ ] Activities of daily living assessed and documented
207- [ ] Response validity assessed (consistency of self-report with records and clinical findings)
208- [ ] Work history documented with description of mental demands of past relevant work
209- [ ] Substance use history documented with its contribution to functional limitations
210- [ ] Conclusions address the specific referral question and legal standard
211- [ ] Report distinguishes between functional limitations and diagnostic labels
212- [ ] Evaluator qualifications, credentials, and date of evaluation documented
213
214---
215
216## Guidelines
217
2181. Focus on functional capacity, not diagnosis — a psychiatric disability evaluation that only lists diagnoses without documenting specific functional limitations is useless to adjudicators and will be returned or disregarded.
2192. Always assess treatment compliance and response — the SSA and most disability systems require that the claimant be receiving and compliant with treatment (or have documented good reasons for non-compliance) before finding disability.
2203. Document both what the claimant cannot do AND what the claimant can still do — one-sided reports that only document limitations lack credibility and are less persuasive to adjudicators.
2214. Use behavioral evidence, not conclusory statements — "Claimant was unable to recall 3/3 words after 5 minutes and lost track of the conversation three times during the interview, requiring redirection" is evidence. "Claimant has memory problems" is not.
2225. Assess response validity in every disability evaluation — the base rate of symptom exaggeration in disability evaluations is estimated at 25-30%. Failure to assess validity is a methodological deficiency.
2236. Never base disability conclusions solely on the claimant's self-report — corroborate with treatment records, collateral informants, objective testing, and behavioral observations.
2247. Know the specific legal standard for the type of evaluation — SSA's five-step sequential evaluation differs from ADA's "substantial limitation" standard, which differs from FMLA's "serious health condition" standard. Apply the correct framework.
2258. When evaluating treatment resistance, document all prior adequate treatment trials — disability claims based on treatment-resistant illness are stronger when the treatment history is thoroughly documented.