It is my understanding that a Confederate soldier was carried on the roster until he: died, was transferred, retired, dismissed, discharged, on detached service, deserted, etc.

On his company’s bi-monthly muster report his presence was noted as present, or absent, and in the later case why, if known, i.e., sick, in hospital, sick furlough, detached service

Yesterday we had one stating “Absent, on detached service in the Trans. Miss. Dept.

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Did Confederate soldiers get pensions?

In 1888 Virginia began granting pensions to Confederate veterans or their widows. Confederate veterans, who served in the military before the Civil War, or with the United States Army after their Confederate service, were eligible to receive pensions from the federal government.

https://www.google.com/search?source=hp&ei=LGtQXb6FBKi8tgW9jprQAQ&q=Confederate+pensions&oq=Confederate+pensions&gs_l=psy-ab.3..0l8j0i22i30l2.3685.3685..5357...0.0..0.107.208.0j2......0....2j1..gws-wiz.cguKLifcgSw&ved=0ahUKEwi-y8S6xfvjAhUonq0KHT2HBhoQ4dUDCAs&uact=5

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Confederate veterans where eligible to apply for a pension to a State in which he lived, even if he served in a unit from a different State. Generally, an applicant was eligible for a pension only if he was indigent or disabled.