Here are some of the most frequent kanji with a Kodansha Essential id and mapped to Unicode in CSV format
ROW,FREQ,UNICODE,RR500,Henshall,KE-id
201,247,両,4E21,R016,H0411,KE0015
202,271,争,4E89,R021,H0529,KE0274
203,212,件,4EF6,R000,H0660,KE0066
204,217,任,4EFB,R000,H0764,KE0069
205,278,企,4F01,R000,H1120,KE0048
206,276,位,4F4D,R000,H0421,KE0072
207,270,住,4F4F,R040,H0310,KE0078
208,219,使,4F7F,R042,H0287,KE0089
209,250,価,4FA1,R000,H0626,KE0086
210,232,係,4FC2,R000,H0268,KE0268
211,208,信,4FE1,R045,H0513,KE0513
212,216,側,5074,R000,H0535,KE0119
213,275,再,518D,R060,H0679,KE0162
214,214,別,5225,R069,H0579,KE0188
215,203,利,5229,R068,H0596,KE0189
216,260,勢,52E2,R000,H0518,KE0227
217,224,半,534A,R082,H0195,KE0243
218,201,参,53C2,R000,H0490,KE0263
219,284,口,53E3,R091,H0020,KE0276
220,262,台,53F0,R093,H0166,KE0280
221,243,各,5404,R000,H0438,KE0281
222,235,品,54C1,R104,H0382,KE0328
223,213,団,56E3,R000,H0749,KE0339
224,211,在,5728,R118,H0684,KE0349
225,241,基,57FA,R000,H0641,KE0354
226,231,増,5897,R121,H0741,KE0388
227,202,売,58F2,R123,H0192,KE0397
228,238,変,5909,R125,H0581,KE0401
229,244,始,59CB,R140,H0288,KE0439
230,230,官,5B98,R000,H0441,KE0469
231,264,容,5BB9,R156,H0802,KE0485
232,287,少,5C11,R164,H0143,KE0512
233,286,局,5C40,R167,H0262,KE0524
234,245,島,5CF6,R171,H0358,KE0543
235,299,工,5DE5,R174,H0113,KE0550
236,293,常,5E38,R000,H0718,KE0566
237,263,広,5E83,R182,H0114,KE0581
238,300,建,5EFA,R188,H0473,KE0600
239,251,式,5F0F,R189,H0295,KE0602
240,218,引,5F15,R190,H0077,KE0605
241,265,必,5FC5,R200,H0568,KE0767
242,226,応,5FDC,R000,H0622,KE0768
243,235,情,60C5,R000,H0719,KE0819
244,233,感,611F,R000,H0246,KE0792
245,221,所,6240,R217,H0312,KE0843
246,239,打,6253,R000,H0335,KE0854
247,236,投,6295,R000,H0357,KE0862
248,257,挙,6319,R000,H0458,KE0849
249,254,提,63D0,R000,H0753,KE0915
250,288,放,653E,R000,H0391,KE0935
251,295,料,6599,R229,H0599,KE0951
252,226,昨,6628,R241,H0486,KE0986
253,282,有,6709,R252,H0385,KE1003
254,248,朝,671D,R257,H0175,KE1009
255,253,村,6751,R261,H0052,KE1073
256,258,果,679C,R267,H0627,KE1052
257,294,校,6821,R268,H0021,KE1091
258,281,格,683C,R000,H0633,KE1088
259,206,案,6848,R270,H0418,KE1060
260,290,検,691C,R000,H0663,KE1101
261,222,次,6B21,R279,H0292,KE1120
262,269,歳,6B73,R000,H1294,KE1131
263,229,死,6B7B,R285,H0286,KE1133
264,223,水,6C34,R291,H0040,KE1151
265,220,求,6C42,R000,H0455,KE1155
266,296,沢,6CA2,R000,H1552,KE1164
267,280,流,6D41,R302,H0409,KE1200
268,261,減,6E1B,R000,H0667,KE1219
269,267,演,6F14,R000,H0621,KE1239
270,274,無,7121,R310,H0796,KE1280
271,215,物,7269,R314,H0387,KE1290
272,234,特,7279,R315,H0760,KE1293
273,298,状,72B6,R000,H0717,KE1296
274,240,男,7537,R325,H0054,KE1334
275,292,町,753A,R326,H0057,KE1335
276,283,疑,7591,R000,H0835,KE1347
277,246,直,76F4,R339,H0349,KE1377
278,279,真,771F,R341,H0514,KE1385
279,205,知,77E5,R343,H0169,KE1394
280,252,確,78BA,R000,H0634,KE1409
281,237,示,793A,R000,H0695,KE1413
282,242,私,79C1,R352,H0876,KE1428
283,289,税,7A0E,R000,H0727,KE1438
284,209,策,7B2C,R000,H0339,KE1473
285,256,終,7D42,R369,H0306,KE1526
286,204,組,7D44,R000,H0160,KE1529
287,277,置,7F6E,R375,H0545,KE1466
288,273,能,80FD,R000,H0766,KE1018
289,291,藤,85E4,R000,H000,KE0000
290,297,裁,88C1,R000,H0872,KE1624
291,259,西,897F,R402,H0252,KE1638
292,228,計,8A08,R408,H0105,KE1658
293,272,談,8AC7,R000,H0543,KE1698
294,227,論,8AD6,R421,H0996,KE1700
295,255,運,904B,R444,H0231,KE0704
296,285,過,904E,R446,H0629,KE0705
297,207,道,9053,R443,H0188,KE0710
298,210,集,96C6,R473,H0309,KE1851
299,268,電,96FB,R478,H0180,KE1862
300,249,革,9769,R000,H0821,KE1877
