Genoa height - EPSG:5214

WKT

VERTCS["Genoa_height", 
	VDATUM["Genoa"], 
	PARAMETER["Vertical_Shift", 0.0], 
	PARAMETER["Direction", 1.0], 
	UNIT["Meter", 1.0]]

WKT2

VERTCRS["Genoa_height", 
	VDATUM["Genoa"], 
	CS[vertical, 1], 
	AXIS["Gravity-related height (H)", up, 
		LENGTHUNIT["Meter", 1.0]], 
	ID["EPSG", "5214"]]

Data from @esri/proj-codes

{
  "wkid": 5214,
  "latestWkid": 5214,
  "macro": "PE_VCS_GENOA_HT",
  "name": "Genoa_height",
  "wkt": "VERTCS[\"Genoa_height\",VDATUM[\"Genoa\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "VERTCRS[\"Genoa_height\",VDATUM[\"Genoa\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]],ID[\"EPSG\",\"5214\"]]",
  "description": "Genoa height",
  "authority": "EPSG",
  "version": "7.5.8(10.1.0)",
  "deprecated": "no",
  "areaname": "Italy - mainland and Sicily",
  "extent": {
    "slat": 36.59,
    "nlat": 47.1,
    "llon": 6.62,
    "rlon": 18.58
  }
}