424.1 is a legacy non-billable code used to specify a medical diagnosis of aortic valve disorders. This code was replaced on September 30, 2015 by its ICD-10 equivalent. References found for the code 424.1 in the Index of Diseases and Injuries:
As of October 2015, ICD-9 codes are no longer used for medical coding. Instead, use the following five equivalent ICD-10-CM codes, which are an approximate match to ICD-9 code 424.1:
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
424.1 is a legacy non-billable code used to specify a medical diagnosis of aortic valve disorders. This code was replaced on September 30, 2015 by its ICD-10 equivalent.
References found for the code 424.1 in the Index of Diseases and Injuries:
Your heart has four valves. Normally, these valves open to let blood flow through or out of your heart, and then shut to keep it from flowing backward. But sometimes they don't work properly. If they don't, you could have
General Equivalence Map Definitions The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.