The February 2003 article "Use Just One Diagnosis Code for Late Effects of Stroke" advised coders to report 434.0x (Cerebral thrombosis) with V12.49 (Personal history of certain other diseases; other disorders of nervous system and sense organs) when a prior stroke patient presents to the hospital with a subsequent stroke but has no residual defects from her first cerebrovascular accident (CVA). However, Section 1.7 of ICD-9 advises coders to report V12.59 (Personal history of certain other diseases of circulatory system; other) instead of V12.49 in this scenario. In addition, "Many PM&R auditors recommend coding the late effects which may be present from the onset or may arise at any time after the onset of the condition," advises Janet O'Connor, CPC, billing/coding and compliance manager at the University of Virginia's department of physical medicine and rehabilitation. "If a patient is transferred from an acute hospital to our rehab service and the physiatrist is treating the patient's hemiparesis, I assign the 438.2x series (Late effects of cerebrovascular disease; hemiplegia/hemiparesis) as the primary diagnosis instead of 436 (Acute, but ill-defined, cerebrovascular disease) because you should always report the treating diagnosis first."