ETRS89 DREF91 2016 - EPSG:10284

WKT

GEOGCS["ETRS89_DREF91_2016", 
	DATUM["ETRS89_DREF91_Realization_2016", 
		SPHEROID["GRS_1980", 6378137.0, 298.257222101]], 
	PRIMEM["Greenwich", 0.0], 
	UNIT["Degree", 0.0174532925199433]]

WKT2

GEOGCRS["ETRS89_DREF91_2016", 
	DATUM["ETRS89_DREF91_Realization_2016", 
		ELLIPSOID["GRS_1980", 6378137.0, 298.257222101]], 
	PRIMEM["Greenwich", 0.0], 
	CS[ellipsoidal, 2], 
	AXIS["Latitude (lat)", north, 
		ORDER[1]], 
	AXIS["Longitude (lon)", east, 
		ORDER[2]], 
	ANGLEUNIT["Degree", 0.0174532925199433], 
	ID["EPSG", "10284"]]

Data from @esri/proj-codes

{
  "wkid": 10284,
  "latestWkid": 10284,
  "macro": "PE_GCS_ETRS89_DREF91_2016",
  "name": "ETRS89_DREF91_2016",
  "wkt": "GEOGCS[\"ETRS89_DREF91_2016\",DATUM[\"ETRS89_DREF91_Realization_2016\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]]",
  "wkt2": "GEOGCRS[\"ETRS89_DREF91_2016\",DATUM[\"ETRS89_DREF91_Realization_2016\",ELLIPSOID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433],ID[\"EPSG\",\"10284\"]]",
  "description": "ETRS89 DREF91 2016",
  "authority": "EPSG",
  "version": "10.083(13.2.0)",
  "deprecated": "no",
  "areaname": "Germany",
  "extent": {
    "slat": 47.27,
    "nlat": 55.92,
    "llon": 3.34,
    "rlon": 15.04
  }
}