In inpatient coding, which code set is used for procedures?

• A. ICD-10-PCS
• B. CPT
• C. ICD-10-CM
• D. ICD-9-CM

Answer: (A)

Procedures performed during an inpatient stay are coded with ICD-10-PCS. This hospital-specific system uses seven alphanumeric characters to precisely identify the procedure, including the part of the body, the operation or action taken, the approach, any devices used, and qualifiers. CPT is used mainly for outpatient procedures and physician services, ICD-10-CM codes diagnoses, and ICD-9-CM is the older prior-to-ICD-10 system. So for inpatient facility procedure coding, ICD-10-PCS is the appropriate code set.