The entirety of the district that would be determined as "Indre by" is classified as being in the suburb "Christianshavn". This is wrong. 

"Indre by" and "Christianshavn" should be the same level, and cover distinctly different areas.
Similarly, the suburbs; 
"Nørrebro", "Vesterbro", "Østerbro" are all classified as within the district of "Indre by" which is again wrong. 

All of these should be at the same level: 
https://www.kk.dk/politik/politikker-og-indsatser/bolig-byggeri-og-byliv/bydelsplaner

See link from the municipality of Copenhagen.

Similarly, Frederiksberg is not in "Indre by" though being classified as such. 