Trieste height - EPSG:5195

WKT

VERTCS["Trieste_height", 
	VDATUM["Trieste"], 
	PARAMETER["Vertical_Shift", 0.0], 
	PARAMETER["Direction", 1.0], 
	UNIT["Meter", 1.0]]

WKT2

VERTCRS["Trieste_height", 
	VDATUM["Trieste"], 
	CS[vertical, 1], 
	AXIS["Gravity-related height (H)", up, 
		LENGTHUNIT["Meter", 1.0]], 
	ID["EPSG", "5195"]]

Data from @esri/proj-codes

{
  "wkid": 5195,
  "latestWkid": 5195,
  "macro": "PE_VCS_TRIESTE_HT",
  "name": "Trieste_height",
  "wkt": "VERTCS[\"Trieste_height\",VDATUM[\"Trieste\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "VERTCRS[\"Trieste_height\",VDATUM[\"Trieste\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]],ID[\"EPSG\",\"5195\"]]",
  "description": "Trieste height",
  "authority": "EPSG",
  "version": "7.5.8(10.1.0)",
  "deprecated": "no",
  "areaname": "Europe - former Yugoslavia onshore",
  "extent": {
    "slat": 40.85,
    "nlat": 46.88,
    "llon": 13.38,
    "rlon": 23.04
  }
}