mik-ohdsi
commented
3 years ago Hi @Jake-Gillberg, thanks for bringing this up. I agree, it could be more accurate. The more recently used condition terminologies admittedly enjoy a bit more attention than ICD9CM.
Let me summarize:
250.00 goes correctly to only 4193704, Type 2 diabetes mellitus without complication
250.02 goes incorrectly to 4008576, Diabetes mellitus without complication but should be "type 2"
adequately mapped (to concept id 201826, Type 2 diabetes mellitus): 250.10 250.80 250.90
250.12 250.82 250.92
not perfectly mapped: 250.20 250.30 250.40 250.50 250.60 250.70
250.22 (also has less specific mapping to 4226238, Hyperosmolar coma due to diabetes mellitus instead of 201530, Hyperosmolar coma due to type 2 diabetes mellitus, maybe even to be replaced by 4215719, Hyperosmolar non-ketotic state due to type 2 diabetes mellitus because coma is not part of the ICD code) 250.32 250.42 (has less specific mapping to 192279, Disorder of kidney due to diabetes mellitus instead of 443731, Renal disorder due to type 2 diabetes mellitus) 250.52 (has less specific mapping to 443767, Disorder of eye due to diabetes mellitus instead of 443733, Disorder of eye due to type 2 diabetes mellitus) 250.62 (has less specific mapping to 443730, Disorder of nervous system due to diabetes mellitus of 376065, Disorder of nervous system due to type 2 diabetes mellitus) 250.72 (has less specific mapping to 321822, Peripheral vascular disorder due to diabetes mellitus instead of 443729, Peripheral circulatory disorder due to type 2 diabetes mellitus)
We will see if we can introduce those mapping fixes with one of our scheduled refreshes that also require us to touch ICD9 for updated mappings. It could take a little while, as it would not rank among the top priority fixes.
Cheers ~Mik
Codes matching ICD-9 pattern 250.X0 or 250.X2 should be mapped to type 2 diabetes, but only a handful are.
https://athena.ohdsi.org/search-terms/terms/201826 https://icd.codes/icd9cm/250