GDA2020 + AVWS height - EPSG:9462

WKT

HVCOORDSYS["GDA2020_and_AVWS_height", 
	GEOGCS["GDA2020", 
		DATUM["GDA2020", 
			SPHEROID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	VERTCS["AVWS_height", 
		VDATUM["Australian_Vertical_Working_Surface"], 
		PARAMETER["Vertical_Shift", 0.0], 
		PARAMETER["Direction", 1.0], 
		UNIT["Meter", 1.0]]]

WKT2

COMPOUNDCRS["GDA2020_and_AVWS_height", 
	GEOGCRS["GDA2020", 
		DYNAMIC[
			FRAMEEPOCH[2020.0], 
			MODEL["GDA2020-PMM"]], 
		DATUM["GDA2020", 
			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]], 
	VERTCRS["AVWS_height", 
		VDATUM["Australian_Vertical_Working_Surface"], 
		CS[vertical, 1], 
		AXIS["Gravity-related height (H)", up, 
			LENGTHUNIT["Meter", 1.0]]], 
	ID["EPSG", "9462"]]

Data from @esri/proj-codes

{
  "wkid": 9462,
  "latestWkid": 9462,
  "pcsWkid": 0,
  "gcsWkid": 7844,
  "vcsWkid": 9458,
  "macro": "PE_HVC_GDA2020_AVWS_HEIGHT",
  "name": "GDA2020_and_AVWS_height",
  "wkt": "HVCOORDSYS[\"GDA2020_and_AVWS_height\",GEOGCS[\"GDA2020\",DATUM[\"GDA2020\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],VERTCS[\"AVWS_height\",VDATUM[\"Australian_Vertical_Working_Surface\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]]",
  "wkt2": "COMPOUNDCRS[\"GDA2020_and_AVWS_height\",GEOGCRS[\"GDA2020\",DYNAMIC[FRAMEEPOCH[2020.0],MODEL[\"GDA2020-PMM\"]],DATUM[\"GDA2020\",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]],VERTCRS[\"AVWS_height\",VDATUM[\"Australian_Vertical_Working_Surface\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]]],ID[\"EPSG\",\"9462\"]]",
  "description": "GDA2020 + AVWS height",
  "authority": "EPSG",
  "version": "9.9(12.9.0)",
  "deprecated": "no",
  "areaname": "Australia - GDA",
  "extent": {
    "slat": -60.55,
    "nlat": -8.47,
    "llon": 93.41,
    "rlon": 173.34
  }
}