REGCAN95 + Fuerteventura height - EPSG:9511

WKT

HVCOORDSYS["REGCAN95_and_Fuerteventura_height", 
	GEOGCS["GCS_REGCAN95", 
		DATUM["D_Red_Geodesica_de_Canarias_1995", 
			SPHEROID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	VERTCS["Fuerteventura_height", 
		VDATUM["Fuerteventura"], 
		PARAMETER["Vertical_Shift", 0.0], 
		PARAMETER["Direction", 1.0], 
		UNIT["Meter", 1.0]]]

WKT2

COMPOUNDCRS["REGCAN95_and_Fuerteventura_height", 
	GEOGCRS["GCS_REGCAN95", 
		DATUM["D_Red_Geodesica_de_Canarias_1995", 
			ELLIPSOID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	VERTCRS["Fuerteventura_height", 
		VDATUM["Fuerteventura"], 
		CS[vertical, 1], 
		AXIS["Gravity-related height (H)", up, 
			LENGTHUNIT["Meter", 1.0]]], 
	ID["EPSG", "9511"]]

Data from @esri/proj-codes

{
  "wkid": 9511,
  "latestWkid": 9511,
  "pcsWkid": 0,
  "gcsWkid": 4081,
  "vcsWkid": 9396,
  "macro": "PE_HVC_REGCAN95_FUERTEVENTURA_HEIGHT",
  "name": "REGCAN95_and_Fuerteventura_height",
  "wkt": "HVCOORDSYS[\"REGCAN95_and_Fuerteventura_height\",GEOGCS[\"GCS_REGCAN95\",DATUM[\"D_Red_Geodesica_de_Canarias_1995\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],VERTCS[\"Fuerteventura_height\",VDATUM[\"Fuerteventura\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",1.0],UNIT[\"Meter\",1.0]]]",
  "wkt2": "COMPOUNDCRS[\"REGCAN95_and_Fuerteventura_height\",GEOGCRS[\"GCS_REGCAN95\",DATUM[\"D_Red_Geodesica_de_Canarias_1995\",ELLIPSOID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],VERTCRS[\"Fuerteventura_height\",VDATUM[\"Fuerteventura\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",up,LENGTHUNIT[\"Meter\",1.0]]],ID[\"EPSG\",\"9511\"]]",
  "description": "REGCAN95 + Fuerteventura height",
  "authority": "EPSG",
  "version": "10.013(13.2.0)",
  "deprecated": "no",
  "areaname": "Spain - Canary Islands - Fuerteventura",
  "extent": {
    "slat": 27.99,
    "nlat": 28.81,
    "llon": -14.58,
    "rlon": -13.75
  }
}