MC058

Principal inpatient ICD-9-CM or ICD-10-CM procedure code. The decimal point is not coded. The ICD-9-CM or ICD-10-CM procedure must be repeated for all lines of the claim, if necessary. This is one of three fields used to report type of service.

See Appendix K - External Code Sources.

Definition updated to include institution level information as well as inpatient level information as of 6/30/2022. This field represents only inpatient admissions for data requests pulled prior to this date.