KVD1964 Height - EPSG:5193

WKT

VERTCS["KVD1964_Height", 
	VDATUM["Korean_Vertical_Datum_1964"], 
	PARAMETER["Vertical_Shift", 0.0], 
	PARAMETER["Direction", 1.0], 
	UNIT["Meter", 1.0]]

WKT2

VERTCRS["KVD1964_Height", 
	VDATUM["Korean_Vertical_Datum_1964"], 
	CS[vertical, 1], 
	AXIS["Gravity-related height (H)", up, 
		LENGTHUNIT["Meter", 1.0]], 
	ID["EPSG", "5193"]]

Data from @esri/proj-codes

{
  "wkid": 5193,
  "latestWkid": 5193,
  "macro": "PE_VCS_INCHEON_HT",
  "name": "KVD1964_Height",
  "wkt": "VERTCS[\"KVD1964_Height\",VDATUM[\"Korean_Vertical_Datum_1964\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "VERTCRS[\"KVD1964_Height\",VDATUM[\"Korean_Vertical_Datum_1964\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]],ID[\"EPSG\",\"5193\"]]",
  "description": "KVD1964 Height",
  "authority": "EPSG",
  "version": "7.5.6(10.1.0)",
  "deprecated": "no",
  "areaname": "South Korea - onshore",
  "extent": {
    "slat": 33.14,
    "nlat": 38.64,
    "llon": 124.53,
    "rlon": 131.01
  }
}