CPC vs. CIC for CDI
Most nurses heading into CDI are told to get the CPC first. It is a professional fee credential built on CPT, and inpatient facility coding does not use CPT. Here is what both exams actually test, what they cost, and which one matches the job.
CDI and DRG validation: same code sets, opposite mandates
Both seats open FY2026 ICD-10-CM, ICD-10-PCS, and MS-DRG grouper v43.1. Then they split. CDI works concurrently and is barred from naming reimbursement. DRG validation works retrospectively and exists to decide it. One constructed example, read from both chairs.