Coding for Outpatient Services and Physician Offices

10.5 - Coding for Outpatient Services and Physician Offices (Rev. 3081, Issued: 09-26-14, Effective: Upon Implementation of ICD-10, Implementation: Upon Implementation of ICD-10) The Official ICD-10-CM Coding Guidelines include a section for Outpatient Services (hospital-based and physician office). These guidelines can be found in the annual updates to ICD-10-CM posted at http://www.cms.gov/Medicare/Coding/ICD10/index.html A/B MACs (A), (B), (HHH), and DME MACs, physicians, hospitals, and other health care providers must comply with the Official ICD-10-CM Coding Guidelines.