Loop 2300 HI/FL 74 | Medicare Billing: CMS-1450 & 837I

Used on inpatient hospital claims when you perform a procedure.

Table 49: Loop 2300 HI/FL 74 Field
Principal Procedure Code & Date	Source
Enter the ICD-10-PCS procedure code for the principal procedure you performed during the period covered by the bill and the date you performed the principal procedure described on the bill.	ICD-10 procedure code

Report the ICD-10-PCS code that identifies the inpatient principal procedure you performed at the claim level during the period covered by the bill and the corresponding date. Inpatient hospital claims require principal procedure codes for procedures performed. Outpatient claims don’t use these codes.