Listing code
11.12
Adult (Part A)
Body system
11.00
Neurological disorders
Subsections
3
Lettered criteria paths
Step in evaluation
3 of 5
Listing match approves the claim
SSA listing text and criteria
Myasthenia gravis , characterized by A, B, or C despite adherence to prescribed treatment for at least 3 months (see 11.00C ):
Subsection A
Disorganization of motor function in two extremities (see 11.00D1 ), resulting in an extreme limitation (see 11.00D2 ) in the ability to stand up from a seated position, balance while standing or walking, or use the upper extremities. OR
Subsection B
Bulbar and neuromuscular dysfunction (see 11.00F ), resulting in: One myasthenic crisis requiring mechanical ventilation; or Need for supplemental enteral nutrition via a gastrostomy or parenteral nutrition via a central venous catheter. OR
Subsection C
Marked limitation (see 11.00G2 ) in physical functioning (see 11.00G3a ), and in one of the following: Understanding, remembering, or applying information (see 11.00G3b(i) ); or Interacting with others (see 11.00G3b(ii) ); or Concentrating, persisting, or maintaining pace (see 11.00G3b(iii) ); or Adapting or managing oneself (see 11.00G3b(iv) ).
Source: SSA Blue Book listing 11.12. Last synced 2026-05-04.
Where claims under 11.12 usually fail
Some denials happen because the paperwork shows myasthenia gravis but does not document which lettered pathway (A, B, or C) matches. Another common failure is mixing up the thresholds, for example describing weakness but not the specific "extreme limitation" in standing up from a seated position, balance while standing or walking, or using upper extremities under Subsection A. For Subsection B, the listing is very specific about outcomes: one myasthenic crisis requiring mechanical ventilation, or a need for supplemental nutrition through gastrostomy or via parenteral nutrition through a central venous catheter. For Subsection C, it is not enough to show marked limitation in physical functioning; the claim must also include one of the listed mental or cognitive areas (understanding/remembering/applying information, interacting with others, concentrating/persisting/maintaining pace, or adapting/managing oneself).
Medical evidence that strengthens this claim
Documentation should show treatment adherence for at least 3 months, then tie test results and clinical findings to one of the lettered criteria. For Subsection A, look for medical evidence describing disorganization of motor function in two extremities and the resulting extreme limitation in standing up from a seated position, balance while standing or walking, or using the upper extremities. For Subsection B, the medical record should document a myasthenic crisis requiring mechanical ventilation, or a need for supplemental enteral nutrition via gastrostomy or parenteral nutrition via a central venous catheter. For Subsection C, the evidence needs marked limitation in physical functioning plus a specific corresponding mental-function area listed in Subsection C.
What happens if your records do not meet this listing
Step 4 and Step 5 focus on how limiting the myasthenia gravis is in real work situations, even if the exact "A, B, or C" lettered criteria are not met. A common path to approval is getting a residual functional capacity assessment that reflects more-than-minimal limitations from the neurological disorder, then applying that assessment to whether past work or other work is realistically possible. Many claims are decided at later steps because the strict listing thresholds were not met on paper, but the overall functional picture is still too limiting for work.
Work activity and the SGA gate for this condition
If applying for SSDI, the work-activity rules come first. If substantial work activity is happening, disability benefits generally cannot be paid regardless of a diagnosis; the medical focus in SSA's evaluation mainly comes after that work-activity gate. For people who meet 11.12, the condition must still be causing the lettered functional problems (A, B, or C) despite adherence to prescribed treatment for at least 3 months, which reflects ongoing limitations that can make sustained work difficult. For those approved, continuing eligibility follows the usual SSDI process that includes the trial work period and then an extended period of eligibility, based on ongoing ability to work.
Listing 11.12 FAQ
Questions that come up repeatedly for myasthenia gravis , characterized by a, b, or c despite adherence to prescribed treatment for at least 3 months disability claims.