TransmittalsPub. 100-04, Medicare Claims Processing Manual Home Health (HH) Patient-Driven Groupings Model (PDGM) - Additional Manual Instructions, Trans. 4312 (May 23, 2019) Documentation of Medical Necessity of the Home Visit; and Physician Management Associated with Superficial Radiation Treatment, Trans. 4309 (May 24, 2019) July 2019 Update of the Hospital Outpatient Prospective Payment System (OPPS), Trans. 4313 (May 24, 3019)Pub. 100-06, Medicare Financial Management Updates to Medicare Financial Management Manual Chapter 4, Section 20 and 20.1 Demand Letters, Trans. 316 (May 24, 2019) This document is only available to subscribers. Please log in or purchase access. Purchase Login