Composite APCs

10.2.1 - Composite APCs (Rev. 3941; Issued: 12-22-17; Effective: 01- 01-18; Implementation: 01-02-18) Composite APCs provide a single payment for a comprehensive diagnostic and/or treatment service that is defined, for purposes of the APC, as a service typically reported with multiple HCPCS codes. When HCPCS codes that meet the criteria for payment of the composite APC are billed on the same date of service, CMS makes a single payment for all of the codes as a whole, rather than paying individually for each code. See Addendum A at www.cms.hhs.gov/HospitalOutpatientPPS/ for the national unadjusted payment rates for these composite APCs.