How do you identify ICD-10-CM codes in Nationwide Inpatient Sample (NIS) using STATA?

[gagan kumar]

NIS has 40 Diagnoses (dx1 to dx40) listed for every patient. I am trying to find how many have diabetes. There are a lot of ICD10CM codes for diabetes between E0800 to E1399.
I have written this

gen diabetes = 0
foreach var of varlist dx1-dx40 {
replace diabetes=1 if `var'=="E0800"
replace diabetes=1 if `var'=="E0801"
replace diabetes=1 if `var'=="E0802"
replace diabetes=1 if `var'=="E0803"
....

}

but it will take an hour to write in all the diagnoses codes.. is there anything simpler?

[Weiwen Ng]

Yes. You can write the codes as a range instead of typing each single code. See the help for the icd10 command.

PS: pardon the pedantry, but we don’t spell Stata in all caps, unlike SAS or SPSS. I believe that both those names were once acronyms, but I don’t believe this was ever true of Stata.

[Marcos Almeida]

help icd10