ShieldSanguine, a prickly pear cactus Proper charged with a fleur-de-lis Argent.
CrestThat for the regiments and separate battalions of the Tennessee Army National Guard: On a wreath of the colors Argent and Sanguine, upon a mount Vert a hickory tree Proper charged with three mullets, one and two, Argent.
MottoNON PRO NOBIS, SED PRO ALIIS (Not for Ourselves, but for Others).
ShieldThe shield is sanguine (maroon), the color of the Army Medical Service. The prickly pear cactus and the fleur-de-lis represent service on the Mexican Border and in France, respectively, during World War I.
CrestThe crest is that of the Tennessee Army National Guard.
The coat of arms was originally approved for the 105th Medical Regiment on 25 March 1927. It was redesignated for the 105th Medical Battalion on 7 October 1942. It was amended to delete the crests of Georgia, North Carolina and South Carolina on 6 December 951. The insignia was redesignated for the 230th Armored Medical Battalion on 30 June 1955. It was redesignated for the 230th Medical Battalion on 29 December 1965.