| 0% | § 4.31 Zero percent evaluations. In every instance where the schedule does not provide a zero percent evaluation for a diagnostic code, a zero percent evaluation shall be assigned when the requirements for a compensable evaluation are not met. | Your ankylosing spondylitis is service connected and documented, but at the time of examination it is neither in an active exacerbation nor leaving limitation of motion that any joint or spine code compensates. The lowest compensable rung on this ladder is 10 percent. A zero percent rating pays nothing now, but it establishes service connection and fixes the effective date any later increase runs from. |
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What supports this level- Diagnosis of ankylosing spondylitis by rheumatologist
- Examination finding no active exacerbation and no compensable limitation of motion
- Range of motion measured and recorded for every affected joint and spine segment, even when normal
- Continued rheumatology treatment records, so a later increase has a documented history
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| 10% | Note (2): With the types of arthritis, diagnostic codes 5004 through 5009, rate the acute phase under diagnostic code 5002; rate any chronic residuals under diagnostic code 5003. Degenerative arthritis established by X-ray findings will be rated on the basis of limitation of motion under the appropriate diagnostic codes for the specific joint or joints involved (DC 5200 etc.). When however, the limitation of motion of the specific joint or joints involved is noncompensable under the appropriate diagnostic codes, a rating of 10 pct is for application for each such major joint or group of minor joints affected by limitation of motion, to be combined, not added under diagnostic code 5003. Limitation of motion must be objectively confirmed by findings such as swelling, muscle spasm, or satisfactory evidence of painful motion. | Your ankylosing spondylitis is not in an active flare, but it has left chronic residuals — limitation of motion of an affected joint or spine segment that is objectively confirmed by swelling, muscle spasm, or painful motion, yet is not severe enough to be compensable under the diagnostic code for that joint. DC 5009 Note (2) sends chronic residuals to DC 5003, which pays 10 percent for each such major joint or group of minor joints. |
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What supports this level- Diagnosis of ankylosing spondylitis by rheumatologist
- Imaging evidence of sacroiliitis or spinal involvement
- Limitation of motion that is noncompensable under the joint or spine code
- Painful motion, swelling, or muscle spasm objectively confirmed on examination
- Disease not in an active flare at the time of examination
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| 20% | One or two exacerbations a year in a well-established diagnosis. 20 percent. Note (3): The ratings for the active process will not be combined with the residual ratings for limitation of motion, ankylosis, or diagnostic code 5003. Instead, assign the higher evaluation. | You have one or two flare-ups of your ankylosing spondylitis per year during an active disease process, in a well-established diagnosis. DC 5009 Note (2) rates the active phase under DC 5002; chronic residuals are rated separately under DC 5003 or under the code for the specific joint or spine segment involved. |
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What supports this level- Diagnosis of ankylosing spondylitis by rheumatologist
- HLA-B27 positive or imaging evidence of sacroiliitis
- One or two documented exacerbations per year
- Well-established diagnosis in the treatment record
- Each exacerbation recorded at the time it happened, not reconstructed later
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| 40% | With symptom combinations productive of definite impairment of health objectively supported by examination findings or incapacitating exacerbations occurring 3 or more times a year. 40 percent. | You have symptom combinations that are productive of definite impairment of health, objectively supported by examination findings or incapacitating exacerbations occurring three or more times per year. |
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What supports this level- Three or more incapacitating exacerbations per year
- Objective examination findings of health impairment
- Elevated inflammatory markers (ESR, CRP)
- Progressive radiographic changes in the spine
- Documented use of immunosuppressive or biologic medications
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| 60% | Less than criteria for 100 percent, but with weight loss and anemia productive of severe impairment of health or severely incapacitating exacerbations occurring 4 or more times a year or a lesser number over prolonged periods. 60 percent. | Your ankylosing spondylitis symptoms are less than the criteria for 100 percent but with weight loss and anemia that are productive of severe impairment of health, or severely incapacitating exacerbations occurring four or more times per year or a lesser number over prolonged periods. |
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What supports this level- Weight loss and anemia documented
- Severe impairment of health objectively supported
- Four or more severely incapacitating exacerbations per year
- Prolonged use of systemic corticosteroids or biologics
- Significant spinal fusion on imaging
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| 100% | With constitutional manifestations associated with active joint involvement, totally incapacitating. 100 percent. | Your ankylosing spondylitis causes constitutional manifestations associated with active joint involvement that are totally incapacitating. |
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What supports this level- Totally incapacitating constitutional symptoms
- Active joint involvement in multiple areas
- Complete or near-complete spinal ankylosis
- Inability to perform activities of daily living
- Systemic complications (uveitis, cardiac, pulmonary)
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