I have tried using this app, but find it quite unhelpful. I enter basic items in the search feature and it often finds nothing to match (no “gestational diabetes”, etc). I know the ICD 9 terminology is entirely unhelpful itself, but at least the app could have synonyms to help people find terms they need. Otherwise, I can just look this stuff up on wikipedia.
Angelfishy about ICD9 Consult 2015, v7.0