Washington UB04 CFA 1450 is a standardized form used by hospitals and other medical providers in Washington State for submitting claims information to insurance companies. It is also known as the Uniform Billing (UP) 04 and is part of the Health Care Financing Administration (CFA) series of forms. It is used to submit claims for inpatient, outpatient, and professional services. The form is divided into sections for submitting patient information, diagnosis codes, procedure codes, and other related data. There are three versions of the Washington UB04 CFA 1450: the CMS-1450, CMS-1450A, and CMS-1450B. The CMS-1450 is the most commonly used form for submitting claims. The CMS-1450A is used for inpatient services, while the CMS-1450B is used for outpatient services.