Skip to main content

XCAH01_1.1.4

Back to C21051

Field description Field abbreviation Field version Field length Field type
Common Aggregation Hierarchy, first level grouping XCAH01 1.1.4 5 Char

Valid entries

Code Label
CAH01 medicine and dentistry
CAH02 subjects allied to medicine
CAH03 biological and sport sciences
CAH04 psychology
CAH05 veterinary sciences
CAH06 agriculture, food and related studies
CAH07 physical sciences
CAH09 mathematical sciences
CAH10 engineering and technology
CAH11 computing
CAH26 geography, earth and environmental studies
CAH13 architecture, building and planning
CAH15 social sciences
CAH16 law
CAH17 business and management
CAH24 media, journalism and communications
CAH19 language and area studies
CAH20 historical, philosophical and religious studies
CAH25 design, and creative and performing arts
CAH22 education and teaching
CAH23 combined and general studies

Dependent fields

  • None

Depend upon fields

  • XHECOS

Additional information

The Common Aggregation Hierearchy is an aggregation methodology that can be applied to both HECOS and JACS subject coding frames in order to allow for time series analysis.

The datasets tables Cyy051_SJ (for the Student record) and Cyy054_SJ (for the Student Alternative record) are the HECoS subject by full person equivalent (FPE) tables, that hold merged subject data from the appropriate Course and CourseSubject records apportioned using the HESA 'combination splitter' methodology.

XCAH01 takes the HECoS subject and derives its value based on the HECoS/CAH mapping

XFPE01 apportions the subjects to a nominal FPE, according to the number of subjects submitted per Course and the weighting allocated to a Course's subjects.

Technical Specification

XCAH01 XHECOS
CAH01 100270, 100267, 100271, 100276, 101334, 101336, 100748, 101339, 101338, 101337, 101331, 101309, 101327, 100261, 101324, 101325, 100131, 100266, 100268, 100275
CAH02 100290, 100279, 100281, 100285, 100295, 100293, 100288, 100280, 100283, 100287, 100286, 100746, 100282, 100284, 101333, 100747, 100289, 100291, 100292, 100294, 100250, 100277, 100251, 100246, 101289, 101329, 100273, 100749, 100750, 100255, 101291, 100744, 100247, 101511, 100036, 100037, 101332, 101317, 101335, 100248, 101290, 100252, 100233, 100234, 100235, 100739, 100236, 100241, 100242, 100237, 101340, 101241, 100243, 100253, 100239, 101375, 100129, 100132, 101330, 101320, 100495, 100249, 100254, 100260, 100257, 100265, 101382, 100912, 100272, 100264, 100540, 100258, 100038, 100274, 100262
CAH03 100345, 100346, 100848, 101318, 101457, 100347, 100864, 101459, 100348, 100849, 100351, 100850, 101458, 100906, 100909, 100822, 100881, 100911, 100907, 100353, 100872, 100826, 100873, 100874, 100910, 101376, 101460, 100355, 100937, 100880, 100829, 100834, 100882, 100883, 100356, 101378, 100259, 100901, 100898, 100899, 100900, 100902, 101377, 100344, 100948, 100949, 100352, 101380, 100354, 100932, 101373, 100343, 100865, 100858, 100350, 100847, 101319, 100433, 101379, 100095, 100096, 100098, 100475
CAH04 100497, 100493, 100954, 101294, 100387, 100950, 101383, 100499, 100953, 100952, 100496, 101342, 100494, 100985, 101464, 101381, 100993, 101345, 101344, 100958, 101341, 101363, 101003, 101463, 101462, 100959, 100498, 101343
CAH05 101384, 101347, 100531, 101461, 101220, 100908, 100532, 100938, 100939, 100941, 100942
CAH06 100522, 100936, 100940, 100523, 100519, 101025, 101024, 100516, 100884, 101385, 101010, 101006, 100517, 100518, 100976, 100946, 100947, 100945, 101348, 100978, 100529, 101001, 100974, 101004, 100998, 100468, 100979, 100990, 100977, 101014, 100520, 101017, 101388, 100527, 101387, 101021, 101022, 100526, 101018
CAH07 100427, 100580, 101060, 101068, 100416, 101071, 101223, 101391, 101061, 100577, 101076, 101390, 100430, 100419, 101077, 101075, 100425, 101300, 101074, 101396, 100579, 100426, 100431, 100414, 100415, 101103, 101102, 100413, 101038, 100417, 101042, 101044, 101045, 101041, 101043, 101046, 100420, 101054, 100422, 101389, 100423, 101050, 101053, 100424, 100384, 101222, 101219, 100386, 100388, 100392, 100390, 100391
CAH09 100400, 101029, 101028, 100401, 100402, 100403, 101027, 100405, 100404, 101030, 101031, 101032, 101034, 100406, 101033
CAH10 100160, 100182, 100184, 100429, 100192, 100190, 100201, 100109, 100211, 100110, 100193, 100202, 100170, 100205, 100206, 100152, 100209, 100213, 101398, 101397, 100428, 100114, 100115, 100564, 100229, 100117, 100116, 100207, 100568, 101216, 101243, 101210, 100126, 100127, 100005, 100128, 100138, 100130, 100572, 100120, 100148, 100548, 100180, 100549, 101048, 100551, 100156, 100565, 100157, 100153, 100219, 100154, 101399, 100539, 100162, 100166, 101355, 100546, 100163, 100164, 100581, 101354, 101353, 100165, 100553, 100168, 100177, 101234, 100169, 100118, 100188, 100159, 100141, 100135, 100143, 100175, 100176, 100172, 100178, 100144, 100183, 100204, 100185, 101013, 100573, 100550, 100212, 100155, 100566, 101217, 100545, 100203, 100033, 100210, 100145, 100214, 100544, 100194, 100134, 100136, 100137, 100139, 100222, 100186, 100093, 100560, 100230, 101356, 100225
CAH11 100734, 100365, 100366, 100741, 100736, 100737, 100735, 101400, 100367, 100372, 100373, 100869, 100755, 100754, 100994, 100751, 100371, 100757, 100963, 100753, 100756, 100376, 100960, 100956, 100821, 100374, 100359, 100989, 100968, 100992, 100961, 100966, 100363, 101267, 101268, 101019, 101020, 100360, 100361, 100362, 100738, 100358, 100385, 100368
CAH26 100409, 101352, 101070, 100408, 101064, 101394, 101079, 101058, 101065, 100410, 101091, 101067, 101407, 100671, 100665, 100469, 101408, 100478, 100668, 100669, 100666, 101078, 100381, 101072, 100986, 100369, 101056, 101104, 101351, 100379, 100394, 101106, 100380, 101093, 101084, 101083, 101082, 101086, 100395, 100396, 101089, 101073, 100418, 100382, 100421, 100398, 101105, 101081
CAH13 100583, 100121, 100122, 100147, 100216, 100584, 100585, 100149, 100150, 100151, 100586, 100825, 100217, 100590, 100124, 100588, 100196, 100197, 100593, 100198, 100199, 100594
CAH15 101307, 100471, 100619, 100484, 100625, 100624, 100621, 101326, 100623, 100629, 100626, 100628, 100627, 100505, 101465, 100631, 101405, 100622, 100483, 100651, 100648, 100645, 100647, 100652, 100502, 101406, 100649, 100436, 101218, 100663, 100437, 101358, 101359, 100488, 101233, 100600, 100597, 100449, 100604, 100601, 100606, 100450, 100451, 100452, 101402, 101401, 101404, 100618, 101507, 100609, 101510, 100612, 101509, 101403, 100489, 100490, 101288, 101506, 101357, 100491, 100090, 100091, 101508, 100616, 100610, 100617, 100659, 100655, 100662, 100501, 100503, 100466, 100654, 100455, 100456, 100457, 100476, 100653, 100473
CAH16 100482, 100683, 100685, 101323, 100676, 100680, 100691, 100485, 100692, 100693, 100677, 100486, 100686, 100689, 100681, 100684, 100678, 100690
CAH17 100078, 100079, 100808, 100080, 100218, 100074, 100856, 101215, 100853, 100846, 100075, 100644, 100855, 100851, 100813, 100811, 100823, 101308, 100815, 100819, 100088, 100817, 100089, 100814, 100812, 100820, 100092, 101040, 100896, 100810, 100866, 101049, 100085, 100861, 100083, 100891, 100084, 100087, 100893, 100894, 100097, 100875, 100100, 100101, 100102, 100106, 100827, 100107, 100832, 100835, 100830, 100828, 100831, 100104, 100105, 100840, 100838, 100845, 100836, 100837, 100868, 101409, 100743
CAH24 100915, 100914, 100370, 100916, 100913, 100918, 100076, 100919, 100926, 100927, 100925, 100439, 100442, 100445, 100440, 100058, 100444, 100443, 100922, 100921, 100920
CAH19 100320, 101109, 100318, 101108, 100319, 101094, 101095, 101111, 101492, 101473, 101483, 101477, 101472, 101487, 101476, 101493, 101486, 101479, 101478, 101468, 101495, 101480, 101485, 101471, 101475, 101490, 101489, 101467, 101496, 101481, 101107, 101484, 101469, 101470, 101474, 101491, 101494, 101488, 101482, 100046, 100730, 100731, 100729, 100317, 101412, 100970, 101410, 100328, 100972, 100971, 100973, 101035, 101016, 101118, 101120, 101497, 100333, 101163, 100335, 101419, 101121, 101413, 101315, 100321, 101132, 101133, 100322, 101424, 101161, 100323, 101134, 101135, 100324, 101149, 101425, 101145, 101148, 100326, 101137, 101136, 100327, 101143, 100765, 101142, 101144, 101141, 100332, 101139, 101138, 100325, 101155, 101501, 101312, 101153, 101500, 101152, 101158, 100331, 100330, 101157, 101499, 101151, 101428, 101429, 101180, 101177, 101165, 101166, 101167, 101164, 101271, 101174, 101430, 101179, 101368, 101169, 101170, 101171, 101168, 101212, 101371, 101172, 101372, 101258, 101175, 101369, 101185, 101188, 101189, 101184, 101198, 101192, 101432, 101367, 101194, 101269, 101191, 101196, 101197, 101190, 101193, 101433, 101503, 101366, 101431, 101434, 101504, 101195, 100316, 101206, 101205, 101207, 101201, 101202, 101199, 101203, 101204, 101415, 101113, 101117, 101112, 101417, 101114, 101037, 101414, 101426, 101159, 101150, 101427, 101311, 100329, 101115, 101416, 101130
CAH20 101360, 100767, 100298, 100758, 100774, 100771, 101436, 100301, 100761, 100670, 100762, 100779, 101248, 100763, 100302, 100784, 100785, 100664, 100714, 100780, 100307, 100781, 100778, 100759, 100764, 100769, 100308, 100309, 100786, 100310, 101435, 100766, 101498, 100311, 100312, 100772, 100773, 100768, 100760, 100777, 100782, 100306, 100783, 100299, 101438, 101440, 100787, 101439, 101261, 101437, 100599, 100807, 100805, 101422, 101423, 101126, 101129, 100300, 101420, 101125, 101124, 101421, 101442, 100793, 100791, 101441, 100337, 100338, 101443, 100792, 100801, 100798, 100795, 100803, 100799, 101444, 100796, 100797, 100802, 100339, 100800, 101445, 101446, 100340, 100794
CAH25 101361, 101362, 100587, 100059, 100589, 100595, 100592, 100003, 100048, 100052, 100054, 100055, 100633, 100060, 100061, 100062, 100636, 101316, 100050, 100051, 100630, 100632, 100375, 100071, 101450, 100854, 100650, 100867, 100674, 100842, 101447, 100661, 100639, 100843, 100870, 100656, 100070, 100643, 100695, 100642, 100223, 100221, 101449, 100035, 100637, 100667, 101448, 100841, 101451, 100657, 100844, 100862, 100067, 100707, 100710, 100697, 100069, 100708, 100703, 100704, 100702, 100700, 100698, 100705, 100885, 101452, 100711, 101454, 100886, 100068, 101453, 100712, 100057, 101214, 100716, 100890, 100888, 100441, 100887, 100063, 100924, 100923, 100717, 101505, 100726, 100895, 100724, 100706, 101374, 100721, 100725, 101455, 100728
CAH22 100454, 100463, 100459, 100460, 100461, 100462, 101322, 100508, 100464, 101088, 100465, 100507, 100510, 100509, 100511, 101246, 100512, 101087, 101085, 100513, 200001
CAH23 101273, 101274, 101275, 101279, 100658, 101278, 101221, 100962, 101090, 101276, 101277, 100314, 100065

Revision history

Date Version Notes
2021-02-26 1.1.4 The coding frame has been updated to Common Aggregation Hierarchy version 1.3.3, amendments were actioned on feedback received from DLSG, new codes created due to changes to the CAH grouping and old codes deprecated
2020-05-19 1.1.3 Additional valid entry 200001 added to CAH22, this has been added as referenced in XHECOS_XFPE01
2020-03-26 1.1.2 The coding frame has been updated to HECoS rather than JACS valid entries
2019-03-07 1.1.1 New derived field to determine the Common Aggregation Hierarchy, first level grouping

Contact Liaison by email or on +44 (0)1242 388 531.