Final answer:
ICD codes are used in medical records and medical billing and coding systems.
Step-by-step explanation:
ICD codes are utilized in various healthcare settings. Two locations where you would likely find an ICD code are in medical records and in medical billing and coding systems. In medical records, ICD codes are used to document a patient's diagnosis and treatment. In medical billing and coding systems, ICD codes are employed to process claims for reimbursement by insurance companies.