Z Codes in Medical Billing: An Expert’s Guide for 2026 Traditionally, most Z codes haven’t been directly tied to reimbursement That’s changing—slowly Some payers and Medicaid programs are beginning to offer care management reimbursement or value-based incentive payments when Z codes are used to document patient complexity
2026 ICD-10-CM Diagnosis Code Z65 3 is a billable specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes The 2026 edition of ICD-10-CM Z65 3 became effective on October 1, 2025
APL 21-009 - DHCS While the DHCS encounter data system accepts and allows for MCPs to use all ICD-10-CM SDOH codes (see Attachment A below), DHCS seeks to prioritize the use of a set of pertinent SDOH codes to maximize the capture of actionable SDOH data