Creo que es la misma terminología que se usaría en Leyes / Derecho; y si no me equivoco tiene que ver con la capacidad de hecho de una persona física.
Incapacidad parcial = PARTIAL DISABILITY
Incapacidad total = TOTAL DISABILITY

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Note added at 37 mins (2004-12-30 13:21:16 GMT)
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PDF] Partial Disability Factsheet/
Formato de archivo: PDF/Adobe Acrobat - Versión en HTML
... Partial Disability: Stay At Work/Return to Work ... “Partial Disability” or “Partially
Disabled” means that as a result of the injury or sickness, you are: ...
atyourservice.ucop.edu/forms_pubs/ checklists_factsheets/stayatwork.pdf

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Note added at 38 mins (2004-12-30 13:22:39 GMT)
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partial disability benefit - [ Traduzca esta página ]
... partial disability benefit A flat amount specified in a disability income insurance
policy that is payable when the insured suffers a partial disability. ...
www.health-medical-insurance-company.com/ partial_disability_benefit.html - 6k - En caché - Páginas similares

Partial Disability Coverage - [ Traduzca esta página ]
Partial Disability Coverage is a benefit sometimes found in disability income policies
providing for the payment of reduced monthly income in the event the ...
www.thinkglink.com/Partial_Disability_Coverage.asp - 33k - En caché - Páginas similares

Partial Disability Insurance - Great UK Deals - [ Traduzca esta página ]
... Partial Disability Insurance, Partial Disability Insurance. Are you looking for? ...
benefits on account of his or her total or partial disability (whether or ... ...
www.findspot.com/partial-disability-insurance.htm


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Note added at 40 mins (2004-12-30 13:24:26 GMT)
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Disability Insurance Benefits - [ Traduzca esta página ]
... 3. The total disability may not begin prior to the effective date of the
policy. ... Total Disability Income Provision (TDIP) Rider. ...
www.insurance.va.gov/inForceGliSite/ claims/disability%20claims.htm

Total Disability Insurance - Office of Human Resources - [ Traduzca esta página ]
Total Disability Insurance. The College provides Total Disability Insurance
through The Standard. Full-time regular employees (not ...
ww2.lafayette.edu/~humres/benefits_disability.html