Note this entry of the 43rd Tennessee at Vicksburg:
"03 24 1863 [Tuesday]
All quiet! There came a heavy storm of wind, rain, and hail, followed by chilly winds. The boys had on their overcoats just like winter had set in again. Lieutenant [Eli] Cleve Jones [Co. F] came with his command from Warrenton and gave a full history of the shelling and expressed the feelings of the squad while in the fort. Though there were none hurt yet it was not pleasant to have those shells whizzing over their heads. Private [Oren] Dennis, of company H died of measles. His friends tried to send his body home but failed, so his body was buried in Mississippi far from home."
Also, I would discount any animosity among conscripts and regular duty men. Official reporting as we know it today was not the norm in the Confederate army.
These fellows had their hands full just surviving, there was no such thing then as a Graves Registration Unit as we know it today.