Oman - onshore - EPSG:7410

WKT

HVCOORDSYS["HVC_PSD93_and_PHD93", 
	GEOGCS["GCS_PDO_1993", 
		DATUM["D_PDO_1993", 
			SPHEROID["Clarke_1880_RGS", 6378249.145, 293.465]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	VERTCS["PDO_Height_Datum_1993", 
		VDATUM["PDO_Height_Datum_1993"], 
		PARAMETER["Vertical_Shift", 0.0], 
		PARAMETER["Direction", 1.0], 
		UNIT["Meter", 1.0]]]

WKT2

COMPOUNDCRS["HVC_PSD93_and_PHD93", 
	GEOGCRS["GCS_PDO_1993", 
		DATUM["D_PDO_1993", 
			ELLIPSOID["Clarke_1880_RGS", 6378249.145, 293.465]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	VERTCRS["PDO_Height_Datum_1993", 
		VDATUM["PDO_Height_Datum_1993"], 
		CS[vertical, 1], 
		AXIS["Gravity-related height (H)", up, 
			LENGTHUNIT["Meter", 1.0]]], 
	ID["EPSG", "7410"]]

Data from @esri/proj-codes

{
  "wkid": 7410,
  "latestWkid": 7410,
  "pcsWkid": 0,
  "gcsWkid": 4134,
  "vcsWkid": 5724,
  "macro": "PE_HVC_PSD93_AND_PHD93",
  "name": "HVC_PSD93_and_PHD93",
  "wkt": "HVCOORDSYS[\"HVC_PSD93_and_PHD93\",GEOGCS[\"GCS_PDO_1993\",DATUM[\"D_PDO_1993\",SPHEROID[\"Clarke_1880_RGS\",6378249.145,293.465]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],VERTCS[\"PDO_Height_Datum_1993\",VDATUM[\"PDO_Height_Datum_1993\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]]",
  "wkt2": "COMPOUNDCRS[\"HVC_PSD93_and_PHD93\",GEOGCRS[\"GCS_PDO_1993\",DATUM[\"D_PDO_1993\",ELLIPSOID[\"Clarke_1880_RGS\",6378249.145,293.465]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],VERTCRS[\"PDO_Height_Datum_1993\",VDATUM[\"PDO_Height_Datum_1993\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]]],ID[\"EPSG\",\"7410\"]]",
  "description": "Oman - onshore",
  "authority": "EPSG",
  "version": "5.2(10.0.0)",
  "deprecated": "no",
  "areaname": "Oman - onshore",
  "extent": {
    "slat": 16.59,
    "nlat": 26.58,
    "llon": 51.99,
    "rlon": 59.91
  }
}