suchen [und] SGB KA 68-280[0123456789]* or KA 68-28[123456789][0123456789]* or KA 68-29[0123456789][0123456789]* or KA 68-3[0123456789][0123456789][0123456789]* or KA 68-4[01][0123456789][0123456789]* or KA 68-42[012345678][0123456789]* or KA 68-429[0123456789]*