What information is found in an ICD-10 book?

• A. Insurance claims
• B. Surgical procedures
• C. Diagnosis codes
• D. Medication names

Answer: (C)

ICD-10 books primarily contain diagnosis codes that classify diseases and health conditions. These alphanumeric codes are used to document patient diagnoses in medical records, support billing, and track health statistics. The diagnosis portion, ICD-10-CM, covers conditions seen in both outpatient and inpatient care and provides a standardized way to describe what a patient is diagnosed with. Procedures are coded separately in ICD-10-PCS for in-hospital surgeries and other interventions, while medication names appear in pharmacology references, not in ICD-10. Claims use these codes, but the ICD-10 book itself is the source of the diagnosis codes, not the claims form or a list of drugs. So, the information you find in an ICD-10 book is diagnosis codes.