Is it possible to get the specific IC9 codes associated with ER visits?

I’d like to use specific ICD 9 codes rather than MCCCs for MEPS ER visits. Does IPUMS allow me to get that data?

At this time, this is not possible with IPUMS MEPS. However, it looks like the MEPS Condition Files may have what you are looking for (in particular ERNUM and ICD9CODX).