Ras Ghumays height - EPSG:5843

WKT

VERTCS["Ras_Ghumays_height", 
	VDATUM["Ras_Ghumays"], 
	PARAMETER["Vertical_Shift", 0.0], 
	PARAMETER["Direction", 1.0], 
	UNIT["Meter", 1.0]]

WKT2

VERTCRS["Ras_Ghumays_height", 
	VDATUM["Ras_Ghumays"], 
	CS[vertical, 1], 
	AXIS["Gravity-related height (H)", up, 
		LENGTHUNIT["Meter", 1.0]], 
	ID["EPSG", "5843"]]

Data from @esri/proj-codes

{
  "wkid": 5843,
  "latestWkid": 5843,
  "macro": "PE_VCS_RAS_GHUMAYS_HT",
  "name": "Ras_Ghumays_height",
  "wkt": "VERTCS[\"Ras_Ghumays_height\",VDATUM[\"Ras_Ghumays\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "VERTCRS[\"Ras_Ghumays_height\",VDATUM[\"Ras_Ghumays\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]],ID[\"EPSG\",\"5843\"]]",
  "description": "Ras Ghumays height",
  "authority": "EPSG",
  "version": "8.6.3(10.4.0)",
  "deprecated": "no",
  "areaname": "UAE - Abu Dhabi - onshore",
  "extent": {
    "slat": 22.63,
    "nlat": 24.95,
    "llon": 51.56,
    "rlon": 56.03
  }
}